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Our latest
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(February 2010)


 

 


PINEBANK NEWSLETTER

Variation is the necessity of progress

 

This remarkable season continues with grass every where and not enough stock to eat it.
The last four years of successive drought has cleared off a lot of stock so that there is now a shortage. No one is complaining though, because they are just happy having some grass at long last.and the cows have a smile on their faces for the first time for years.

The recession continues to bite and the sheep and beef industry has slowed right down as farmers hang on.    I do not think that it is very different worldwide..

In the last Newsletters I have been trying to explain how genes work and how they are the mainspring of the whole biological system. Genes  are responsible for building the embryo into the total animal along the code built into them at the moment of conception.
In an animal all behavioural patterns  are hard  wired as are appearance, muscling etc  are all controlled by the animals genes.

Every animal has millions of genes  some of which are very high performing , for every or all important characteristics.     A  breeding programme should be aimed at collecting these high performing genes and feeding them back into the herd,  and in doing so, the average performance slowly climbs.  In every so many matings,  purely by chance you get an “outliner” bull which is a long way ahead of its contempories.  you use this bull to make  bigger advances  forward.

   After you have  designed a programme that does  this. You  must persist year after year and never give up and never change.   Time then is the essence, so as time  advances slowly, you add  more and  more of these superior genes to your population thus bringing the  even  better genes further forward.

Remember “ there is no end to the improvement in anything biological, it will slow down, but it will go on”.  We , in the years that we have been going have overcome all the problems, residual in our population and  have begun improving, in a process that has just begun.

We invite those of you who can see the logic in what we are doing, to join us, to help build an Angus that is faster growing more fertile and more efficient on grass, as we go forward into the new millennium

So if you wish to make maximum use of our programme, you use our latest sire over the daughters of any of our bulls

If you take the time to go through our website, take out our programme, study it carefully you will see that the design covers all important aspects
The logic of what I have been telling you is.that every year we will breed better and  better cattle.    Each year is one more year of collecting the better genes.

When I persuaded the scientist to help me and  he drew up the present plan, I asked” why do we not breed like everyone else”. His reply was   “ We do not know whether it works, and I suspect that it doesn’t, but  is it not better to breed for 100 years doing something that we know  works, than to arrive at the end of a lifetime of breeding and discover that it does not work”.

I was convinced and could see the logic of the plan. What we are doing does  work.

Therefore  then of course the most modern bull is always the best. It may not be in a desirable trait like growth it may be  adding another 1% in fertility of his daughters. One of the biggest advantages that you will get out of using our semen is the cows performance.  It is not only the bulls that improve yearly, but behind them improving in all the dam traits are the females. 

There is of course much to be learnt for us as well as you.  It has become clear, because we have insisted that environment selects the type of animal that suits our or your grassland  that if you wish to produce grassland  beef, our sort of animal is what you  will produce and I suspect that there is no other type.  It appears that our phenotype is narrowing but our  variation in performance is not. Those that grow faster, just appear to get more muscle and  more bulk. This is a feature of handling climate extremes I suspect.

This year we have identified a bull that has progeny tested at + 92 kilos at 600 days for growth.    This we believe to be the highest performing pure  New Zealand  bred bull to date and  it has been done on a frame score of 5.2.

This bull still carries with it all the important dam traits plus tenderness genes and is not a terminal  sire . We have used two of his sons this years and the bull himself is being recovered next year.
Although he appears to be another “outliner” he remains just another bull along the way

Happy and  prosperous 2010 for all our readers
From all at Pinebank.co.nz          
Waigrp2@xtra.co.nz

I have been asked by readers of my Newsletter to return to the technical material that I normally write, rather then the story that I wrote last month. So to accommodated those breeders who wish to improve their knowledge, I shall return to genetics. Explaining  how they work and how you can make best use of them. But first about our local conditions.

Christmas  creeps up on us as it always does. Summer is a very busy time for New Zealand farmers as it is the time when the sheep demand all our attention. In the Wairarapa  we are having the best season, growth wise that we have had for very many years. Grass and crops are growing steadily and it is only the constant showers of rain that is stopping the harvesting of hay and silage. That can and will come later. The biggest advantage is that the poor commercial cows have a chance to recover from four years of drought and our cows have at last got a smile on their faces. Prices of all sheep and beef farmers products  remain low but hopefully this is the bottom of the recession and the future will be better.

This month I am going to explain as simply as I can about genes and  DNA and how they not only dominate our lives but are the necessary ingredient that keeps us living .
I know nothing about human genetics nor am I at all interested but all my interest is in animal genetics, how they effect the past and how we can use them to make progress in the future.

Every population or herd of cattle has either exhibited or latent in it , some very high performing genes. In Nature the male that by accident picks up the best genes from both its dam and sire and hence becomes the best  physically superior male and can fight off its opponents, gets the females. So the calves  get half the genes of that superior sire. All animals are hard wired firstly for sex , because in nature once the sire has passed on these superior genes, he has done his job. The fact that animals are hard wired for sex is just one demonstration of the control that genes have over every living thing.  Every cell of the body has two copies of the genetic code of that particular animal and that drives their very being. In animals every thing about them is hard wired, their temperament their apperance and everything about them, even to the extent of manufacturing of hormones and enzymes is controlled by their genesGenes turn on and off as the situation  requires.  If the animal cuts itself , then the genes responsible for rebuilding its exact shape , are turned  on and  rush to the area  where they, by multipying cells, rebuild the body in its own shape.Genes provide the total elixiar of life.The energy for this remarkable process is carried in the blood, that is why when the blood ceases to run the animal  dies.

There are millions of genes in each ejaculationAt the moment of conception only one sperm is responsible for the fertilization of the female eggHalf the genes. coming from the sire and half coming from the female. If and when fertilization  takes place , the cells begin dividing along the code that has already be established at the moment of conception. These genes are selected  purely at random .Of the millions of genes in the indervidual only about half are the working genes. The others are called junk genes and their value and use is unknown

In a given population, the best performing of that population, must have picked up the better genes from both male and female. The objective of any breeding  programme should  be to collect those genes related  to economic traits. By using those top animals you are beginning to collect the better genes, in your herd, and feed them back into your population thus lifting average performance of your total herd.If you are using multifactor selection as we do, then your progress,  may be so slow that it is not visiable, but never the less it exsists and  will continue.

DNAThis is something that has intrigued me for some time.What is DNA and what part does it play.
The best explanation  I have found is this. An orchestral piece of music consist of two parts, the notes as written and how the orchestra  interprets it
The notes are the genes, and how they are expressed in the orchestra is its DNA.

Best wishes for a very happy ChristmasAnd a happy and healthy New Year

Click here for a newsflash!

 

Summer has arrived at last after the coldest Winter that I can remember. So much for Global Warming. Rain has been persistant and cold but if it continues it is certainly setting us up for a growthy Summer. The first for about 5 years and is very welcome.

Prices are still very low and it looks as though they are likely to remain so. The sheep and beef industries out here are in a real mess and our government has forgotten they exist. I know that we are not the only country in this predicament.

I wonder where they think that all the food is going to come from in the future Governments will wake up one day and wonder what happened to the food production but by then it will be too late . There is a lot of land for sale and plenty more to come .

I first thought about tagging and weighing calves at birth when the American Scientists who kept turning up and asking about the cattle, kept warning me that what we were doing would soon raise birth weights to dystokia ( calving problems ) an unacceptable level.

 They thought we were selecting for single factor of growth, but even then we were selecting multi factor for economic traits. I decided that weighing calves at birth was necessary to see if our birth weights were rising on a yearly basis as they had predicted. Before this time I had already begun calving yearling heifers and been in all sorts of trouble as the calves were too big because I was using high growth bulls.

Past experience had told me that weighing and tagging at birth was likely to be an exciting time to say the least , as I had been chased down holes when trying to save calves that had fallen down underunners.in the past . At calving time , cows often were very antisocial.but

I was determined that I should weigh every calf , so I bought a tranquillizer revolver.

I had some trouble getting a license for this gun and when I enquired of the police what was their problem , they replied what was to stop me tranquillizing every pretty girl in Masterton and having my way with her!

I explained that the gun had a report like a .303, which is considerable, and would certainly be heard all over Masterton. Then it shot a dart 7 inches long and it took 5 minutes for the drug to work. You are sitting in your watchhouse one night and a shot goes off, heard all over the town. Sometime later a pretty girl  walks in and stops to chat to the constable behind the desk. He observes a large dart protruding from her behind ,a minute later she slumps to the floor. Who would you come looking for? I got my license next day.  It was at the beginning of the drug ‘Rompun” .

The drug company that manufactured it. asked me to do some trials for them , promising me as much drug as I required as long as I would give them a report on its success or otherwise . This, I was only too pleased to do.

The gun was very expensive, so I told the local vets that as I would only be using the gun  for one month annually and that if they needed it later, they could borrow it. The gun arrived and calving was getting close so I read the manual carefully and got everything ready . It was always my intention to use the gun only if I considered I was in danger weighing the newborn calf .

The Manual said “do away with stockyards, treat your animals in the paddock” So I invited the vets out to a demonstration of this remarkable aid to veterinary science.

I had a cow in the mob that I thought was dry, so I suggested that we should tranquillize her and they could pregnancy test her in the paddock. We gathered around the gun as it was loaded, the dart was filled with the drug, and I approached the cow.  As I have explained the gun had a very loud report which startled the cow .

The first dart went over her back and disappeared into the grass.. There was $10 worth of dart and $7 worth of drugs in the dart and I did not fancy having a loaded dart lying around in a paddock full of calving cows. So all the vets joined me on our hand and knees searching for the dart without success.

The second dart drove into the rump of the now startled cow who was proceeding around the paddock with some gusto.

I shall continue next month.

Click here for a newsflash!

 

Gavin Falloon  


Pinebank Newsletter - October, 2009

 

Spring has been very good this year with fine weather during both lambing and calving. Financial prospects are low for the year as our dollar has climbed right off its economic value.
This is unfortunately due to the falling American dollar. But I guess the American economy will stabilise soon.

 I am always surprised how all Nations and people rape the soil when it is the basis of all their food and if they ate sensibly and well, medics tell us that it would halve the hospital intakes A healthy soil has a direct relationship  with the health of the animals and the humans that live from it. Its preservation and development must be the first call on all scientific and financial resources of each country. But it is lost in the rush for consumerism

It has always been my belief that there are three resources on this planet that are vital to human existence. The soil, the sea, and the air but we abuse them all. . To sustain life we do not need weapons to kill each other. Better and better cars, boats, private yachts, planes etc. We need clean air, a biological sea full of fish, and above all a biologically active soil. But what have we got, universally a biological disaster and getting worse

Variation is the discussion for this month

Variation is the lifeblood of improvement in animal breeding. This is because “if” you close your herd you have no where to go except the best in your own herd. But where better, than your best. They have defeated all the other bulls in your environment.   They must have come out of a good cow that has picked up the high   performing genes for this conception. The calf must have picked up the high performing genes from its sire and you know that he has not been , foster mothered, or been grain fed all his life so you can be assured that it is the best bull in your population for your environment

 I took over the Angus Stud when I left school and found this constant variation hard to understand. Why were there so few good bulls and so many culls? Remember they were being run as a commercial herd, so their environment was raw. Why did I have to put up with so many culls and no matter what bulls I bought the percentage never seemed to change?
I have since learnt that variation is vital doing what we are doing having a closed herd.
Because of its importance we carefully checked variation every year to make sure that it was not decreasing.

The first indication that in-breeding is beginning to rise to unacceptable levels, is a decrease in variability. The second indication is a drop in fertility. These two factors must be kept constantly in mind.

My second problem, when I closed the herd I considered that the best bull was as far as a closed herd could go. That was wrong too. As the population improves the herd so the herd average climbs the equivalent amount.

.If you are using your best bulls every year then it works like this.   First year progeny were sired by the best bulls of their year. Next year progeny are sired by the best bulls that were sired by the best bulls, and so on.

In our case this has been multiplied 44 times and our programme has just begun.

Gavin Falloon  


Pinebank Newsletter - September, 2009

 

Spring is here with its gales , spasmodic rain and slowly warming weather   So far the weather has been very benign no big cold storms for the lambing ewes or the calving cows, so losses have been light. Prospects are that if the el nino conditions persist or strengthen then we will enter another drought. This will give us the fourth in the last four years .

 Not pleasant prospects in pastures already damaged by the past. Growth is slow but developing at the moment let us hope that it continues.  In my little flock of eight ewes I have 200% and they have finished lambing. Lets hope that that is a good omen.

Spare a thought for the people involved in the bush fires in North America and already in Australia,they must be terrifying. Fire is a good servant but a frightening adversary

This is the saying for this month:

“The maximum amount of progress in any breeding programme is the heritability of the character multiplied by the selection differential divided. by the generation interval”.

 I have  realised that including that saying on our web was of doubtful value as it could be difficult to understand.  After much thought I include it to give some validity to the programme for any scientists that are viewing it.  So here is an explanation of what the equation means

If we take a simple characteristic of 600 day growth , it has a heritability of 31%, .
‘Selection differential’ is the amount that the sire being used is above average in his population.

So if you have selected a bull that is 20% above your herd average, then your selection differential would be 13% and if you were using 3 bulls whose performance was 10,15, and 20% above average then you differential would be 10%.. There is the performance of the cows to be taken into account in ‘selection differential” as well.

‘Generation Interval’ is the time taken to use and replace animals. Cows, because of their high culling rate usually push out the generation interval,  whereas you can use yearling bulls which has the effect of keeping the bull side as short as possible if you change them every year..Now if you are putting pressure on fertility and nutrition then all cows that fail to conceive are culled and there is a big loss especially at the beginning. But cows as they mature and retain their performance are retained. They are the most valuable as they have stood the test of time.

When I began the programme, I bought in all the yearling heifers as the most modern part of the scheme supposing that they must be superior.  After 10 years I decided that I should analyse all the records to see if they were  superior.

Firstly I found that a poor heifer “never” left a decent calf.  So culling before they went to the bull was well worth it. Secondly I found that heifer, outliners, in other words, out the top, were often infertile.   In discussing this with the scientist managing our biggest experimental herd in New Zealand,  he had found the same thing and had come to the conclusion, that the reason was that too much male hormone had gone through the placenta. while in utero, and that was also the reason for its extreme growth. Do not cull them though, they are well worth a try.

On our web at the top of each page it begins with a genetic saying that I have collected over the years. All of them have come from one or other of senior international genetictist of my time.The only saying that is not from a geneticist is from New Zealand’s chief podsotologist(Soil scientist ) of my time and that saying is:

‘There is no end to the improvement in anything biological, it will slow down but it will go on”  

What a visionary saying  for someone trying to improve farm animals and I make no excuse for crossing it from soil to animals.

If anyone reading my newsletter is have troubles with his breeding programme he could find
one of the saying could be of interest to keep in his mind and to think about.Believe me I have studied them all very closely

So although the equation is quite simple for the “ Maximum amount of progress in any breeding programme”Its application is much more difficult and progress can and usually is very slow.  But that it is why our breeding programme is designed the way that it is.

 

Gavin Falloon  


Pinebank Newsletter - August, 2009

 

Spring is here at last and we have had a period of the most beautiful weather. Day after day of frosty mornings and the best clear and windless days. We are moving into the equinox where we normally get constant  wind from the Northwest. This  is our prevailing wind.
  The damage that wind does as a constraint to growth is often not appreciated. As the wind blows across the surface of the soil itl sucks out moisture, this acts like a giant refrigerator and cools the ground thus checking any grass growth.
We have had no wind so far this year so that is a blessing.
Angus bulls have had a good year as it is one of those years when Angus is the flavour of the year. Herefords have been much less popular. Very wise decision of the  commercial breeders!

Back to the Recording Systems. The second type is a “Herd Improvement Programme”
This is designed to improve a given factor to reach given goals in a given period of time.
BLUP is of course is one of these but is very open ended, in that you can improve any factor, and there is no limit in time.
I have explained how or why for every factor that you add to a breeding programme your progress goes down by   “Square roots”. This makes  multi factor selection programmes very long and slow and takes many years to make much progress .   So it is not much use for senior breeders to begin now.

I have explained that recording is very important for a number of reasons.Pedigree is only important to show  inbreeding levels.This necessity is paramount.   The next big advantage is that you can constantly check to see if you are making progress.
Recording of birth weights is important if it can be done safely but no risk should be taken because injuries can be considerable and permanent .i.e spine injuries ( we have a number of cases  New Zealand).   Failure to be able to weigh calves means that you must rely on estimated weights correlated to weaning weights, so if you get a high weaning weight or yearling weight you automatically get a high birth weight even when you have an actual weighed low weight.
This of course immediately  distorts all your subsequent data on that animal plus all your averages..It takes about three years before progeny test show up their real birth weigh for that bull  By that time the bulls have used and have gone.
Data and recording must be accurate so that you can easily identify superior bulls.There is no doubt that there are many very superior bulls bred each year that are never used because they have not been correctly identified.

When I was doing all the Group recording and adjusting weights, some 800 cows and their progeny, so disturbed was I about the accuracy   that I had identified the best bulls of their year, that I ran them through three different breeding programmes.  If they matched across the three I knew that they were the best bulls of their year.  Don’t forget that we were using our best bulls each year and changing them every year. Some outliner bulls cannot be identified on their own performance and it is not until you have progeny tested them that their true worth is demonstratedThis is why we use four bulls per 100 cows. To make sure that we find the best bull of their year. If he is good enough on progeny test then we bring him back for another season and probably give him different and more cows.

BLUP as we know has a component of historical data which is used in the calculations of each animal.
It is “my” belief that there is no place for historical data in progammes designed to improve highly inheritable traits.I make this evaluation on the basis of our experience, where a bull which I have written about in the past , who’s antecedents were low performers. Produced this bull which was an “outliner” for weaning weight.BLUP gave the bull a very low ranking, based on his parentage.It took 6 years before BLUP recognised his progeny test and began to write him up.
One of my ‘genetic sayings’ which heads each page on the Pinebank Web is as follows   (any Animal exhibiting a superior characteristic, carries with it its heretibility ( as estimated) regardless of the performance of its parents.)  I rest my case

Many superior bulls are lost to the industry because they are never properly identified.

Gavin Falloon  


Pinebank Newsletter - July, 2009

The season has been again difficult. We went straight out of a drought into very cold storms, which prevented any grass from growing. As far as I know there is a shortage of feed is all over the country. The succession of storms has kept the cloud low and high moisture content has kept the cold very penetrating. Everyone is becoming depressed as we wait for some sun. The present economic climate is presenting more problems as it is world wide. We are of course in the middle of Winter with all its vagaries but I am always conscious of the saying “ When Winter comes, can Spring be far behind” We have just got our first lamb, one of the first signs of Spring a very welcome sight

Recording and Recording systems

There are two recording systems A simple recording record where every animal is told just as it is. This is the basis of all identification. You can use it to see if your herd is improving by comparing one year’s yearling heifers weights with the next and by how much. It will also tell you whether you are going backwards or forward and is very handy if for this reason alone. It is also important to control inbreeding levels, watching pedigrees to keep away from the close breeding of relations  The second system is “Herd improvement Programmes”. These are designed to reach prescribed goals in a prescribed time.

At the beginning, our geneticist did all the calculations. Then he taught me how to do them and for number of years I did all the calculations for the four herds in the Group at that time. It taught me a about the limitations of calculations and made me see that the more calculations you bring in, the more errors appear. The other fortunate thing at this time was I knew all the cattle, and as I calculated I could see errors creeping in and so I would make an effort to overcome them . Let us look at the weaning weight sums and it goes like this.  Actual Weaning weight - actual birth weight ( divided by the number of days from birth to weaning) multiplied by 200 ) + birth weight. This brings them all to if they were born on the same day and were 200 days of age. You repeat this for 400 days and this gives you yearling weights and the same for 600 days The adjustment for heifer calving as 2years old is 15% so you took out all the 2year heifers and their calves and adjusted them up by 15%. The adjustment for three year old heifers 10%, so you took out all the three year olds and their calves and added 10% to them and so on. Three year olds adjustment is 5% and after that the cows are on their own. These are old figures and they may have now changed, as has hereditabilities.

Recording systems are of necessity rigid. That can cause errors as the seasons vary and there is something called environmental interreaction, which means that different cattle perform differently under different feeding and seasons , The only way to be accurate is too make environmental adjustments to fit the seasons This goes for the cow adjustments too. If you are making progress with your breeding herd then the heifers can be right up with the mature cows, as the heifers are the most modern part of your breeding progamme. Twice this happened while I was calculating, if I had given the heifers their 15% they would have been well out in front of all the cows. Something that they clearly weren’t Rigid programmes have errors as they must have. To be accurate you must adjust to the seasons.

There are two types of breeding programmes. There is the recording programme that I have been explaining and there are “ As far as I know I have never seen an analysis or comparison of breeding programmes and their correlation with progeny performance. BLUP programmes are very sophisticated with hereditablity, repeatability, approximate economic values at the various stages, all built in plus historical back records of antecedents. Unfortunately there is nothing static in anything biological and so there are more errors.

Next month I shall talk about Herd Improvement Programmes and their limitations.

Gavin Falloon  


Pinebank Newsletter - June, 2009

The Cow, its use and place in the Beef Industry The cow has little effect on improvement in the herd because she only provides one calf per year but of course she still provides half the genes in each of her calves.

She is the hardest working part of the beef industry, because she is always doing something important. She is expected to conceive while lactating, in itself a biological miracle.

Lactation is far harder on an animal then gestation. Lactating drains all the minerals, and enzymes,. strips all the fat from the animal. Yet it is expected to conceive. Incidentally the enzymes for fertility are carried in the body fats.

The enzymes trigger the hormones which begins the cow cycling, so you can see that it is important that the cow is carrying some fat when put to the bull. Then all through the Winter while she is gestating her calf, she is cleaning up the poor quality grasses and surviving the storms.

To achieve this she must be tough, fertile, and very efficient. The cow provides the income for the year by producing a live calf. Cow’s calves vary from year to year. One year she will have a very high performing calf and next a very poor calf .

I have said that the cows performance covers the full spectrum of variability. In other words if you have a variability of 100 kilos between the best and the worst cow then the each cow will vary around this amount. One cow will vary along the bottom and another will vary along the top .

It is the variation that exists that is important and just because the calf happens to out of old Betty Black does not mean that it is the best. In my experience I only had one cow that produced a top calf every year. Her first 4 calves were all 25% above herd average, so that in her first four years she had produced an extra calf equivalent.

Every one of her bull calves became an elite sire. She always calved first and never missed calving in her 14 years. She had two heifer calves neither of which conceived as a yearling and so were culled. The reason for this variability is that there are millions of genes in the egg that the cow sheds and at the moment of conception both the bull’s and the cow’s genes are sampled purely at random the resulting progeny tends vary around the average.

It is possible and in fact probable that the worst cow in the herd, put to the worst bull can produce an “outliner” calf, because of this randomising of gene selection. I have written about this happening in the past.

The cow that I have written about above, made a greater contribution to improvement in our herd than any bull. She produced many sons , each by a different sire that produced sons that carried on the collecting of the high performing genes in our herd and feeding them back in.

Son William tells me we have produced a similar cow in the herd at this moment and it is expected that we will get more in the future as the programme progresses. Animal breeding, as anyone who is practicing knows is a very complex and difficult skill. What continues to surprise me is, that, in our programme where our environment dictates size and conformation, we are producing are the very best of the old Scottish cattle only with more size and much more bulk.

This indicates to me the those old breeders who established and stabillized the breed used their environment to dictate the phenotype.

It is only in our modern cattle that humans are deciding what sort of cattle that is needed, and I fear losing many of their more important traits in the process.

Gavin Falloon  

Pinebank Newsletter - May, 2009

This month I am going to write about the Bull, it's value and it's use.
The Sire is the most important animal in the herd.  He can control any improvement in the herd , or be the cause of the herd  deteriorating.

If you have a herd of 30 cows or so and only have one sire then 50% of the entire genes for that years production come from that one bull.   His weaknesses as well as his strengths he carries into that generation of calves.   If you use the same bull year after year his impact on your herd is considerable. It can be seen just how important selection of your sires is.

Pedigree examination is important to check that there are no known recessive genes in his back parents ,if there are that the herd has been cleared by DNA testing otherwise you may be building genes that you know nothing about and thus giving yourself trouble in the future. Trouble of this nature can be considerable

Remembering the effect that your new bull will have on your future.  You must meticulously check that the bull is structurally sound.Look to see that the feet have not been clipped and that the bull stands on his feet evenly.  Hocks and back legs must be well shaped as the bull could be working on uneven ground and back leg breakdown results in  infertility.

Spend time all through the mating season observing closely that the bull is completeing service.  Write down numbers that you consider have been successfully serviced and check  they do not return. This is one of the two most crucial times in the beef cycle year.  No calf no profit

Determination of long term goals is very important i.e, do been you wish to improve Dam traits or go for growth.   Total selection for growth has shown to be antagonistic to fertility ,so much thought must be given to direction.   Once decided,  direction should not be changed unless environmental or economic demands, force it.

Now we come to the next problem.For every year  you use the same bull you remain on square one.You are not going anywhere.You are annually contributing the same set of genes into your population year after year.   Can you afford the time

Bull purchasing time is approaching.Best of luck in your purchase

Gavin Falloon  

Pinebank Newsletter - April, 2009

The difference between Hybrid Vigour and Inbreeding Depression

-Gavin Falloon - Angus Pinebank, New Zealand

I have been guilty of saying that “ there is nothing magical about hybrid vigour, it is just the recovery of inbreeding levels!”.  But this is not strictly true. It does explain to a large degree what heterosis is in a simplified form..

When you cross two different breeds of cattle you are making use of hybrid vigour. Hybrid vigour or heterosis come in various degrees depending on how distant the base cattle breeds are.  It is well worth using  and should be used by commercial cattlemen .   It is economic and it cost nothing

Hybrid vigour has  a number of  advantages. For instance when you cross Angus and Hereford the heterosis is 5  to7 %.this manifests itself in added fertility and in calf vigour at birth so more live calvesIf you cross Angus and Shorthorn the heterosis is only 1%.The reason for this is they think that the common heritage was too close.I know nothing about what heterosis there is between crossing one of the base herds ie Angus or Hereford with the so called exotic breeds of charolais or simmentals etc.

  Its main advantages are an increase in fertility, more calves born alive and faster growth generally.The higher inbred the two base herds are, the higher the heterosis   ( hybrid vigour). Hybrid vigour can best be explained by the following: Imagine that one of your herds is a  sheet of paper  that all the weaknesses in that herd are represented by Black holes.The other herd is the same but the black holes would be in different places, so that when the two sheets are put one on top of the other the chances of any of the black holes meeting is very remote.So the resulting progeny has all the best characteristics of both breeds.

This also shows  the problems you get when you cross the crossbreds.    Some of the crossbreds will exhibit all the black holes and thus have all the worst characteristics. Very few will have a clean sheet so in the mating all the heterosis can be depleted in the crossing of crossbreds.

It take about 20 generations to stabilize half breeds and that in most cases is a lifetime.The best way to keep the hybrid vigour at its maximum, is to keep feeding in alternative purebreds into the resulting crosses.   Some heterosis will be lost but not much.

There is some performance lost in inbreeding in closed herds.Losses depends on how closely related the animals are to each other ..Son mother, half sibs etc. When inbreeding comes up to dangerous levels , the first thing that begins to drop is fertility.
This is followed by loss in variation.  Most breeders tell me that they want their herd to be “even as peas in a pod”.This is not a good objective because if they are that even, then there is no where to go if you wish to improve.The greater the variation in a herd the faster the progress you can make.

All closed herds have inbreeding depression to a greater or lesser extent.   The closer  the herd is bred the higher the inbreeding depression.It is possible to have very low inbred levels in a closed herd, this is of course desirable.For one thing it means little depression and secondly if inbreeding is kept to a low level it is possible to keep the herd closed for a great many years, which of course is the objective.To this end you must not use one bull year after year ,or bring the same cows sons in, annually, just because she is perceived to be the best cow in the herd.The minimum size for closing a herd is 120 cows.But the larger the herd the less inbreeding you should  have.Using a number of bulls per year and making sure that they are as unrelated as possible is another method of keeping inbreeding down.
Inbreeding effects can be largely disguised by selection pressure never the lesser depression remains residual in the herd but can be recovered by outcrossing   Inbred herds when used outside their own common  ancestory recover most of that depression and this is an added gain to their performance..

When I began closing my herd I believed that the top of the herd variation was as far as I could go.I soon came to realise that the variation remained the same while the average of the herd rose until the   worst cow was as the best cow had been,  and the best cow was way out in front by the same amount.   This is the way that closed herds work.But it is a long slow slog and it takes many years.

My learning was done in the late 1950's and through the 1960's.During this period I was privileged to be in the research loop.Some of the heritability have changed now and so some of the heterosises could have changed as well.


The theory remains the same

Gavin Falloon  

 


Pinebank Newsletter - March, 2009

Every animal is the product of its genetic code. :  What it looks like, whether it grows fast or slow, its temperament, its fleshing etc., is coded into it at the moment of conception and nothing can change it.Within the many genes contained by animals are some very high performing ones, but most have picked up about average. This is the law of mathematics.

At conception animals get half the genes from the bull and half from the cow and these genes are  picked up purely at random. Those animals that demonstrate superiority  for any characteristic have just happened to pick up the high performing genes from either or both parents. So every mating is a lottery.

Populations are very hard to shift genetically. It is very easy to shift animals phenotypically but that carries with it the same standard  of performance. ,ie a larger animal will just eat more in relation to its size.

All populations have approximately the same or average performance, regardless of whether they are very large or small. Subjecting them to a very concentrated selection to collect the high performing genes  is the only way that it can be successfully moved. genetically

This is what Population Genetics is all about.  It is the gathering of the high performing genes together from within the herd ,feeding it back into the herd , and culling out the low performing genes. Its objective is too keep lifting the performance of the whole herd.   It is important that pressure is applied to both sides, both cows and bulls.  Just putting all the cow selection onto bulls alone,  will  then just go to average cows , you are rapidly on your way back to returning to average herd performance.

I have stated that it is necessary to lift your cows performance at the same time as pressure is being put on your bulls. You do this by selecting your own best bulls annually: ‘ They must have picked up the best dam genes to have become the best bulls of their year, so these bulls are a combination of superior genes from both parents.

You change your sires every year so that the first two years nothing happens at all! This is because those first calves are one year in uterus, then one year growing.If you are using 2 year sires which you should be doing to begin with, then nothing happens for three years.   All the bulls are then by the best bulls of their year, who are out of your best cows of that year.

Next year the bulls are by the best bulls of their year who are by the best bulls of their year and so on.So you are building in your high performance genes.

The cow is different! All cows’ production varies from year to year.Only one cow in my whole lifetime of breeding has produced a top calf every year, and even she had her weaknesses.

She first calved at 18months and her first 4 bull calves were all 25% above average.In other words in those four years she had produced and reared an extra calf.She calved first cow up every year even in her 14th year. She was the dam of the bull Waigroup 1/80 that was progeny tested at Ashlands Kansas and did so well back in 1985 or so..

Her failing was that in all her life she had two heifer calves.   All her sons were used as studs.   Neither of her heifer calves conceived at 12months and were culled.  How good was she ?

This is a Newsletter on how Population Genetics work. If you examine our web on the breeding programme  , you will see how every things is aligned to make maximum use of this theory.

“But” to do this is very costly.  Firstly you have to get through the Bulmer Effect, this can take three to five years . Then you have to overcome Recessives , this can take 12 to 15 years and sometimes more. During the Bulmer Effect you go backwards.  This can and does have the effect on sale of bulls and buyers confidence in your cattle and breeding methods.  It can and does take years to overcome that problem

 


Pinebank Newsletter - February, 2009

The season has turned out  below average in   moisture. Having been very dry last week we have now had a decent rain and more to come this coming week. Cows have picked up and calves are reasonable.This coming rain , if it comes next week as predicted, then it should begin the Autumn growth which will be a nice surprise as we have not had a good Autumn for some time.

All our thoughts are with the farmers in Australia who have suffered the most horrendous bush fires. I see that predicted losses of sheep is 40,000 .  They do not mention cattle but they must be very bad too. It will take years to recover.

Before returning to the Population Genetics that I began to discuss last month there are two sayings that you must keep in the back of your mind:

  1. Every Bull is only as good as the average performance of its progeny .
    Therefore his best son is better than his sire.
  2. Every cow is just a gestation medium for improvement.
Very rare cows do contribute to the improvement of the herd by having a number of high performing sons that can be used as sires.  Do not forget that like the bull, their very top sons  and daughters are better than their mother.

By now you should have a better understanding of  our programme,  why it works and how it works.  It is clear when you think about it that time is the essence and the more years that we go the further progress we make.  The theory says that we should begin to gather speed as we gather the high performing genes and add them to our population.

When I began, the geneticists informed me that he had no idea what was going to happened Because as far as he new it had never been done before all he knew was that it worked and he did not know whether other systems did!

There is a  research herd of Herefords at Miles City Montana that has been closed since 1935 thirty years ahead of ours and is still going strong with no indications of inbreeding levels becoming a problem.
Because we knew that is was going to take many years,  we went to great trouble to make sure that the foundation bulls were as physically and temperamentally as sound as possible

What has pleasantly surprised me is that the programme is producing better and better classical conformation animals.Both cows and bull are becoming  more bulkier probably in response to seasonal change and their necessity to adjust to their grasslands environment.

I shall continue on population genetics next month.




A drought has been threatening on the east coast of New Zealand again this year, but in our district it has been narrowly avoided by light rain at crucial times.  We were becoming very concerned two days ago but it is raining today and it began last night. The country is already beginning to change colour and if the rain continues until tomorrow as predicted, then it will be a big help in flushing the ewes for this coming lambing. We require a good percentage of calves and lambs this year as product prices are continuing to retreat.
Like all countries the economic crisis is beginning to bite and I predict that it will get much worse.

American Ranchers continue to show interest in our breeding programme, we get a number of them turning up to see what is happening and what sort of cattle  we are producing each year .
We suggest that Americans or any other overseas cattle breeders  wishing to see the cattle should warn us, as Summer is a very busy time. It can take sometime to arrange for someone who knows the programme to be available with the cattle you wish to see.

My bit of research for the beginning of 2009 is “Population Genetics” which is what our programme represents.

We do not line breed because our whole population within a herd is one line, and is treated as such.  We do not mate son/mother and very seldom mate half siblings.
Our sire bulls come from anywhere in the herd, One of our problems is to use a top cow’s offspring sparingly, even though they are by different sires, . We must not tie ourselves to any particular female line because of the inbreeding co-efficient.

Every cow’s production covers the full spectrum of variability.   By this I mean that if you have a cow herd variability of, say 100 kilos between the best and the worst calf,.then every cow can vary that 100 kilos.Just because a calf is out of  your best cow it, does not  mean that it  is necessarily  a great calf .

Remember the Genetic Saying:

“Any animal demonstrating superiority for any characteristic, carries with it its heritability for that characteristic(as estimated) regardless of the performance of its parents.”

This theoretical point, negates the use of historical records used by the existing BLUP recording system,   and in fact, means that many high performing animals are lost to the industry because they are written down by BLUP.

I have quoted in the past our experience with a calf which at 200days weighed 100 kilos above the next best calf.  The BLUP programme wrote him to below average because of the past poor performance of his parents.

Regardless of BLUP we used the calf as a sire and he had a dramatic effect on the weaning weight of his progeny.Had we taken BLUP’s figures we would have culled the bull and he would have been a great loss to the industry.

What occurred, was what  happens rarely, in the sampling of the genetic material of both parents he happened to pick up all the high performing genes for preweaning growth.

Remembering that weaning weight is 80% the ability of the calf to grow pre-weaning and only 20% the milk of its mother.”

Gavin Falloon



.

It is Christmas time again, just where did the last year go?  While you in the Northern Hemisphere are under snow, we are in a heat wave and in the beginnings of another drought. 

This will be  the third season in a row.  I cannot remember ever having drought of this frequency ever before. 

We had a smidgen of  rain last week and some more is predicted this week, but as the weatherman tells us that it is supposed to be raining now; his accuracy is in doubt.

Goodness knows how the poor old cows will handle another drought, it has certainly taken its toll. The Angus sales  held up reasonably well last year and do not appear to be affected, much if at all, by the economic  chaos we are all experiencing at the moment.

This week I am returning to animal breeding programmes and to show how and why they work.

Firstly you must set objectives.   They must be realistic and not be altered unless economic or some other equally important factor, forces a change.

Every populations has good and bad genes in it and these genes remain the same for each population until a successful and concentrated programme is implemented and has been running for some time.

In your own herd, you have a line of cows that you have, been selecting over years that are the best for your environment, under your management and all the things that make your farm unique.   Because all farms are unique, the objective is to collect the best, high performing genes out of your herd and build them in thus increasing their performance.

If you are purchasing bulls, then I would suggest that you select your own best bull and use him as a comparison to the purchased bull.   In this way you have always a check on the purchased bull.If you observe your own mob of bulls carefully, you will observe a bull that will stand out from the rest.

Remember the saying:   “Any bull exhibiting superiority for any characteristic, that bull carries with it the heretibility ( as estimated) for that characteristic regardless of the performance of its parents”.

In any mating, half the genes come from each parent , and this sampling is purely by chance.
That bull, that in your herd has happened by chance to get the high performing genes out of both parents making him superior.Is your purchased bull as good?

 The next year you do the same, but pick the best bull of that year.  

 If you are uncomfortable with this idea then just give your own bull a small number of cows, but they must be of all ages, preferable a random selection

Every time that you purchase a new bull, repeat this,   you will find it an interesting exercise.
You may not be as far behind as you had thought!

Happy Christmas to all readers of my Letters.

Gavin Falloon




Spring has arrived at last and grass is growing and stock are picking up after a torrid two years of drought and low prices. 

Like the whole world we await what is going to happen the world food prices, but our dollar is weakening, so that should help to cushion any beef price crash.   The world has to be fed, now more than ever, and there appears to be shortages everywhere .

The last three years of drought has dropped production of sheep and beef over here and what with the acceleration of dairying, sheep and beef is only going to get harder to come by.   The dairy boom cannot last forever as of every thing markets are cyclical.  

Going to be interesting to see the country that is unsuitable to dairying come back into sheep after the very high conversion. There is going to be some big losses.
We shall just go on breeding our bulls and improving all their economic traits, slowly and steadily and let the world go on by.

Closed herd breeding must be approached with caution.  Firstly because there are these two problems which immediately come into focus.

First there is the “Bulmar effect”. This exhibits itself in a way that I cannot explain and as far as I know no one else can explain.

No matter what pressure that you put upon selection, you go backwards and you drop quickly.
How far you drop seems to be a factor of the herd , its previous history management and perhaps environment.It is not until you hit bottom that you begin to climb.

What must always be remember is that you can go just as fast backwards , if you make bad decision as you go forward , which means that data must be observed closely to check that you’re herd is going in the right direction that you have decided.

Overcoming the Bulmar effect can take up to 10 years.

The next and can be bigger problem is, as your inbreeding level begins, if you have any recessive material residing in your herd it begins to appear.   

If you disregard these recessives they become exacerbated, and more and more appear each year.  
 
I have pointed out that every time that you buy a bull or cows, you import any problems that herd may have.
I cannot exaggerate enough how important the bull is, because half the genes for that generation of calves come from that bull.

I shall stop there because there is enough for you who read my Newsletter to think about.   Because that is what they are for!

Put them in the back of your mind and when you have time ,get them out and think about them. If all my writings are not logical, do not accept them! One more Newsletter before Xmas!

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Spring is here and we have been having a succession of the most beautiful days   The grass is at last growing and all the stock are recovering from a most difficult Winter and last years drought. On the farm as yet we have not been effected to the same degree as overseas by the tumult of the world ecomonies. It  will be interesting to see if it begins to effect prices of stock in the coming season.At the moment all is fine and lets hope that it remains so.

Research

All populations are loaded with recessive genetic material.   These recessives occur more often or less often, but   because of the constant out crossings, seldom exhibit themselves unless breeders  begin to use sons across half sibs, or some other method of inbreeding or linebreeding.   Then the recessives come to the fore in various forms.

A geneticist looks at this problem and asks the following questions:

  • What is its gene incidence.?
  • What is its mode of inheritance?
  • Is it of economic importance?

Once those three questions have been answered then he decides whether it is important enough to deal with .   Dealing with recessives takes a lot of time and can be  very expensive.Identification of the gene, of course, makes it much faster, and much cheaper, as only the only animal identified as carrying the recessive need be  culled. Some years ago , I was involved in the  control of a rogue gene.   The reason that this became important was that it was in humans as well as cattle,  so the experimenting could be done in cattle without upsetting people. The scientists collected 25 known carrier cows and two known carrier bulls to which the cows were mated.Because of my identifying calves at birth, I was given the job of calving them.Any calf that was born dead or died shortly after birth went straight to the university.  It was blood tested and had tissues taken.

The results was a perfect mathematical model.   25% clinicals, 50 % carriers and 25% skipped the gene and were clean.This perfection was most unusual with such a small number. It must be remembered that to have a clinical,   an exhibition of the gene, means that there are a number of carriers standing behind the parents.But these are easily identified once the gene is found and cattle can be DNA tested to find those animals that are carriers.

 


Today is Saturday the 13th of September and it is the most beautiful warm Spring day. Weather forecast is for it to remain so until at least the middle of next week. Lets hope that Spring has arrived at long last.   The Weather has been cloudy, cold, and persistent rain for the last 3 weeks.   Because of the cold there has been very little grass growth.   The vagaries of the weather that us rural farmers have to put up with, uncomplaining of course.   If we get the weather as predicted, then Spring will be well under way

The price of beef and lamb is rising, either because of our dollar weakening or else due to demand.   Probably because of both. 

 It means that sheep and beef farming , with any luck will return to profitability. 

 It may even stem the decline in sheep and beef numbers both of which have been under serious decline

My bit of research this month, is the second of two articles by Russell Priest on the breeding cow and how to raise profitability…

 

 

Using Genetic Technologies to Improve the Profitability of the Breeding Cow

Russell Priest

Meat & Wool New Zealand Beef Genetics Coordinator

 

The introduction of genetic technologies to animal breeding has enabled us to identify animals, by way of their genetic makeup, that suit specific production systems, market endpoints, climatic conditions etc. But are we as animal breeders doing a very good job putting this jigsaw together? I would suggest that there is much room for improvement and that rather than blindly chasing ‘fashionable traits’ we give more thought to engineering a better ‘fit’ when selecting our herd sires.

Achieving a closer alignment between the characteristics of the animal and the production system/market will ensure greater herd profitability.

Because the bovine species is inherently not very fertile, the greatest challenge in a breeding cow herd is to improve reproductive efficiency. This not only involves getting females pregnant within a calendar year, but also delivering a live calf at weaning.  A recent N.Z. survey commissioned by Meat and Wool New Zealand and conducted by Massey University suggests that the latter is an area that needs a lot of attention.

 Far too many calves are being lost from conception to weaning!

 Unfortunately some of the most economically important characteristics required by a profitable breeding cow have associated with them traits that are not passed on very strongly from parents to offspring and as a consequence genetic progress is very slow. I refer particularly to the fertility trait (days-to-calving), the calving ease traits and the milk trait.

If rapid genetic progress is a goal, it is better to cull animals that have very poor EBVs for these lowly heritable traits than it is to try and improve them genetically.

On a scale of 1 to 10, with 10 being economically the most important, reproductive efficiency has a rating of 10, growth has a rating of 2 and carcass traits have a rating of 1.

Therefore the number of live calves at weaning is economically by far the most important trait in a breeding operation. Characteristics exhibited by an efficient breeding female may include:

  • Structural and reproductive soundness.
  • Rapid growth to early oestrus
  • A high pregnancy rate at 15 months
  • A fast and easy calving
  • Strong mothering ability
  • Adequate milk
  • A high rebreeding rate within a confined mating period.
  • A high weaning weight ratio.
  • The ability to lead a long productive life (longevity).

10. The ability to simulate the functions of a mower, a baler, a hayshed and a    feedout wagon.

1. Structural and Reproductive Soundness A cow must be structurally and reproductively sound in order to perform the function for which she is designed.  If either of these is impaired, her profitability will suffer to some degree.

2. Rapid Growth to Early Oestrus Good early growth (400-Day Weight EBV) is important in ensuring heifers reach target mating weights at 15 months.  The finisher also benefits from this by achieving target slaughter weights at an early age and particularly before the second winter, as it is a very costly exercise taking finishing cattle though this period.  Strong later growth in heifers (600 days plus) can be a disadvantage in a breeding cowherd as this is usually associated with high mature weight (large framed breeding cows with low levels of body fat).  These animals tend to have high feed maintenance costs and on average are not as efficient as those with more moderate mature weight.

3. A High Pregnancy Rate at 15 Months There is a moderate relationship between the Scrotal Size (SS) EBV and female fertility, but recent research suggests that fertility may not continue to improve with increasing SS, in fact it may well decline. In general however, the greater a bull’s SS EBV, the earlier his daughters start cycling and the shorter will be their calving interval (Days-to-Calving EBV). Herd fertility should also improve as a consequence.

4. A Fast and Easy Calving Two economically important EBVs, which have a direct effect upon the ease with which calves are born and also influence heifer/cow survival during calving, are Direct and Daughters’ Calving Ease. Unfortunately these traits are not passed on strongly from parents to offspring and require a lot of information on them before they are reported for two-year bulls.  Therefore they are rarely, if ever, seen in bull sale catalogues. They are also unfavourably related, which means that bulls whose offspring are born easily often leave daughters who don’t calve as easily. There are bulls however who do defy this reasonably strong genetic relationship. They should be regarded as valuable animals as they are relatively rare.

 The next best indicator of calving ease is birth weight (Birth EBV), though it must be appreciated that the relationship between these two is not straightforward. At low birth weights there is little, if any relationship between the two (calving ease remains the same regardless of birth weight) , however as birth weight increases a relationship starts to kick in where large changes in birth weight result in small changes in calving ease. As birth weight further increases, this relationship is reversed, with small changes in birth weight resulting in large changes in calving ease. Therefore, for two-year-old bulls, this trait should be used as an indicator of direct calving ease with some reservations.

 From experience, breeders will have some idea what Birth EBV figure their herd can cope with and appropriate bulls should be purchased based on this. Remember, birth weight and growth rate are strongly related (low birth weights generally mean low growth rates and vice versa).  There are some bulls however that don’t display as strong a relationship between these two traits as others.  These are known as ‘growth curve benders’ and are characterised by having low birth weights in relation to their growth rates and often have short Gestation Length EBVs.  These are very valuable bulls as they ‘combine the best of both worlds’ (low birth weight and good growth). Here I must sound a word of caution; bulls that have exceptional Direct Calving Ease EBVs (bulls that seem ideal for heifer mating) often leave daughters that don’t calve easily. These bulls are those that generally have a combination of very low Birth EBVs and poor growth EBVs.

The moral of the story is to avoid using animals with extreme EBVs, unless it is absolutely essential and use a ‘balanced’ approach to trait selection.

  The ease with which calves are born does not only influence the survival of calves and cows during calving, but also affects the time it takes for a cow to get back in calf after calving, i.e. cows that calve easily rebreed sooner than those that have difficulty.  The calf also has a far greater chance of surviving if it is born without difficulty.   5. Strong Mothering Ability Calf survival is also very dependent upon the mothering ability of the cow.  If, for example, a calf is born on uneven ground and happens to get separated from the cow at birth (e.g. slides down a hillside) and the cow does not follow it, there is every likelihood the calf will not survive.  The milking ability of the cow is also an important ingredient of calf survival.  It is vital for a calf’s future health that it gets a good dose of antibodies from its mother’s colostrum within the first 24 hours of its life to protect it against disease.  Without this, a calf is always going to struggle.

6. Adequate Milk The strength of the milk genes (200-Day Milk EBV) in a herd should be governed by the environment in which the herd is performing. If there is too much milk (milk is a big consumer of energy) and the environment is harsh, there are often associated fertility problems, as is also the case if there is too much growth (recent research suggests there is an unfavourable relationship between growth and longevity). Genes going into the herd, through bull selection, should be modified according to how the environment is affecting cow performance. Very productive, ‘easy’ country can support a herd with genes for high growth and milk production, however a harsh environment cannot.  So appropriate EBV figures should be targeted to take account of this.

7. A High Rebreeding Rate Within a Confined Mating Period Cows within a herd should rebreed within a calendar year otherwise a broad calving spread will develop. Herds that calve within a confined period (42-63 days) generally have a higher average calf weaning weight and are much easier to manage than herds that have a wider calving spread.  The purchase of high fertility bulls (service capacity tested) will greatly assist in achieving a compact calving.  Moreover, high fertility bulls leave high fertility daughters.  A confined mating period starts with exposing heifers to the bull for no more than 2 cycles and the mixed age cows for 2 -3 cycles.

8. A High Weaning Weight Ratio The biggest cost in a beef cowherd is that of feed and particularly the cost of feed that goes into maintaining the herd (half the cost of feed in a beef production system goes towards maintaining the cowherd).  There are several ways in which this cost can be spread over a greater calf weaning weight: 

  • Get cows to wean a higher ratio of their bodyweight
  • Change the growth characteristics of the herd so that it has an overall lower mature cow weight
  • Genetically select animals that are able to convert feed to product more efficiently.

 For cowherds to improve their weaning weight ratio they must either produce more milk, improve their weaning rate, have a lower mature weight or rear crossbred calves (take advantage of hybrid vigour).  Milk has already been discussed and can often only be increased in a favourable environment. Various components of weaning rate have been discussed earlier (cow fertility, calving ease, calf/cow survival).   Mature cow weight can be influenced by genetics (Mature Cow Weight EBV).  Normally growth and mature weight are closely related, especially growth to 600 days of age.  There are animals that display more moderate mature weight while maintaining good growth, (growth curve benders at the tail end of the growth curve) just as there are animals, which have moderate birth weight while having good subsequent growth (growth curve benders at the beginning of the growth curve).  Cows displaying moderate mature weight eat less and are generally more efficient than those with high mature weight, because as cows become heavier it becomes increasingly difficult to maintain efficiency.  Selecting bulls that display a Mature Cow Weight EBV which is in a lower percentile band than their 600 Day-Weight EBV should help to improve herd efficiency.

9. Longevity The longevity of a breeding cow has a direct influence on profit – young herds are on average not as profitable as mixed age herds. Cow fertility has the greatest impact on longevity however we are desperately in need of an EBV for this trait.

  • A Mower, Bailer, Hayshed and Feedout Wagon

An efficient breeding cow must possess the ability to mop up large quantities of low quality pasture, store this in her body in the form of fat and feed it out during periods of feed scarcity. To perform these functions she needs a robust jaw and teeth, coupled with appropriate genetics to deposit body fat (rib, rump and marbling fat EBVs) and the ability to cover large distances (sound feet and legs) on often very steep and uneven terrain.

In this article I have dealt with EBVs of economic importance in a beef-breeding cowherd. It is very difficult to rank each of these EBVs on their financial impact (because most of them are only indicators of profit and do not influence it directly) while also endeavouring to account for the favourable/unfavourable effects the genetic relationships, between a lot of these traits, have on profitability. The Index system accounts for both of the above by ranking bulls on ‘profit per cow mated’ (a single $ figure or EBV for Profit). It balances the importance of EBVs according to the impact each will have on profitability for a particular production system or market. Its main claim to fame is its user friendliness and its simplicity. By the time this article is published there should be five beef breeds in N.Z. publishing a total of twelve indexes that represent different production systems and target markets. These indexes can be accessed via breed society websites using a powerful web-based search engine called Internet Solutions.

Summary: 

    • If there are Days-to-Calving and Calving Ease (Direct and Daughters) EBVs available, ensure that bulls with poor EBVs are avoided (use breed average EBVs or breed percentile band EBVs as frames of reference).
    • Use appropriate Birth EBVs (based on experience) if Direct Calving Ease EBVs are not available.
    • Select bulls with good Scrotal Size EBVs, but avoid extreme bulls.
    • Select appropriate growth and milk EBVs to suit the environment. Harsh environments won’t support high growth/high milk-producing animals or the practice of mating heifers at 15 months.
    • Try to buy bulls whose Mature Cow Weight EBV rankings are below their 600-Day Weight EBV rankings.
    • Ensure Fat and Milk EBVs are appropriate for the environment
    • Use a balance of EBVs in a breeding programme (don’t breed to extremes).
    • The Index system is user friendly, ranks bulls on profitability for particular production systems and markets and balances EBVs according to their relative impact on profit.
    • Take note of how the environment is affecting herd performance and only choose bulls with EBVs that suit the environment.
    • Keep an eye out for those animals that break unfavourable genetic relationships between economically important traits. They are genetically very valuable.

     

    This and other articles written by the author can be found on the Meat & Wool New Zealand website at www.meatandwoolnz.com.

    For further information contact :

    Russell Priest Ph. 06 323 4484 Fax. 06 323 3878 Mb. 0274 369 372 Email. russell.priest@meatandwoolnz.com Website : meatandwoolnz.com

 


 We must have recovered all the water missing from last summer drought.  All we need now is some sun to bring on some growth.  

Stock generally through out New Zealand is light this year as there has been little growth since the drought broke. Most of the supplement feed has been taken up by the Dairy Industry which is on a very prosperous high.

In fact a lot of the previously used fatten land has been converted to dairying bringing with it a distortion in the sheep and cattle farms.  Out here, most of the high and steep country is used for the breeding of the lambs and beef calves while the better low-lying country was used for finishing.

Now that has all changed, because of dairying and the finishing of sheep and beef has become more difficult.

Predictions are for the price of proteins to rise in this coming year and that will be a welcome relief.  It always surprises me what a strange animal humans are.

Surely the production of food is the most vital of all careers.  After all we can do without fast cars, yachts etc. Yet if we run out of food people begin to complain.  

People will spend a fortune on a race horse, and all they are doing is to buy the right to spend another fortune on training entering it in races.

Yet they will spend a minimum on a bull which effects their production for a hundred years.

It has always been my belief that the first responsibility of any government is to protect and improve its soils, and educate those who are responsible for their care.

As part of this months newsletter, I include the following article, reproduced with permission from Russell Priest, Meat & Wool NZ's Beef Genetics Coordinator.

Fat is Nature's Hayshed for the Breeding cow.

- by Russell Priest, Meat & Wool New Zealand

With the breeding cow increasingly coming under pressure to compete financially with other stock classes any good news that may enhance her position is welcome. The recent commercialization of three gene markers for feed efficiency and the development of an estimated breeding value for a similar trait have presented the pro breeding cow lobby with some ray of hope in slowing down the demise of this unfairly maligned animal.

Feed is by far the single biggest cost in a breeding cow operation and the proportion required simply to maintain the breeding female forms a significant part of this. It is this large maintenance cost that leads to questions about her efficiency. Efficiency in a breeding cow herd can be improved in a number of different ways, however they all contribute to what ultimately matters which is the weight of calf weaned per kilogram of feed eaten. Efficiency is not necessarily related to the weight of the individual cow; however there is a strong general relationship between the size of the cow and the amount of feed she eats. Also, as cows get heavier it becomes increasingly difficult for them to maintain the same level of efficiency.

One of the great attributes of a cow is her ability to maintain pasture quality for the benefit of other stock, while growing a calf and storing fat on her back. She is then able to draw on this very valuable source of energy when the quantity and/or quality of pasture declines thereby enabling her to continue to grow her calf at an acceptable rate. This attribute however is going to be compromised if the latest fashion (i.e. feed efficiency) in the industry is taken too far. Researchers have discovered that more feed efficient females do not store as much fat in their bodies as less efficient ones, hence they have less stored energy in the form of fat to call upon. This research has also revealed that breeding cows which have been single-trait selected for feed efficiency for only 3-4 generations are proving significantly more difficult to get back in calf and this seems to be related to the amount of fat they are carrying. The moral of this story is, as is always the case with single-trait selection;

don’t select for a single trait too intensively otherwise your breeding programme will be derailed”.

It seems nature has created fat for a very good reason, so we should tread wearily when considering removing it from the cow herd, as it appears if we go too far fertility will be affected. It makes a lot of difference as to whether a cow stores extra weight as muscle tissue or as fat. This is because the two tissues have different concentrations of stored energy and different maintenance costs.

A kilogram of stored body fat contains about 39 megajoules (MJ) of energy, about five times that of a kilogram of muscle, which contains about 7 MJ. A cow can therefore store a lot more energy in the same weight of fat compared with muscle. Despite this difference, it only takes 25% more energy from feed to store a kilogram of fat compared to a kilogram of muscle.

Moreover once fat is deposited in the body reserves, it takes less than half as much energy to maintain it there compared to the same weight of muscle. This is because muscle is a much more active tissue than fat and is constantly being replaced. In a typical cow herd 70% of the energy used to maintain the cows is used for maintaining muscle tissue, not fat. At any given live weight, mature cows that tend to store surplus energy as fat tissue should therefore be “cheaper to run” than those accumulating it as muscle. Any changes made towards breeding leaner cows either by selecting for higher carcass yield or improved feed efficiency, could have serious consequences.

Summary:

  • Compared with muscle:

- Fat contains over 5 times more energy per kilogram

- It takes only 25% more feed energy to create the same weight of fat

- It takes only half as much energy per kilogram to maintain fat

  • 70% of the energy required to maintain a breeding cow goes towards maintaining muscle not fat
  • Therefore at the same body weight fat cows should be cheaper to run than lean ones
  • Breeding cows selected intensively for feed efficiency store less fat and take longer to get pregnant
  • Proceed cautiously when selecting for feed efficiency and carcass yield in your cow herd

This and other articles written by the author can be found on the Meat & Wool New Zealand website at www.meatandwoolnz.com.

For further information contact :

Russell Priest Ph. 06 323 4484 Fax. 06 323 3878 Mb. 0274 369 372 Email. russell.priest@meatandwoolnz.com Website : meatandwoolnz.com

 


When winter comes,  spring is not far behind. We are past the shortest day and so far it has been a kind winter. There has been little growth but it looks as though we will make it, and come out of it in reasonable shape.

We are currently receiving good rain and so this should fill the water table and the dams for next summer. The big South Island lakes are still low in water so this affects our hydro electricity. Not funny when a country like ours with all this valuable water should run out of electricity just through Government inaction and incompetence.

This month I am going to run through the equation that is the basis of all animal breeding. To begin with “ a Geneticist is a mathematician” so every thing he does has to be  completely logical.

So here is the equation the maxims amount of progress in any breeding programme is govern by:

“The heritability of the characteristic or characters that you wish to improve multiplied by the selection differential, and divided by the generation interval”.

 So let me explain what this means.

Heretibility means the amount of a character transferred to the next generation. In the case of growth, which is a quite a  simple characteristic, it is 48% or near enough to 50%.

So if you are using a bull that is 20 kilos above average in your herd, this bull’s progeny will be 10 kilos above herd average.

The trouble is that when you buy a bull you do not know whether it would carry with it its superiority in your herd, you do not know how it has been fed, or the environment that it was produced under, compared to your own.

There is a genetic saying “bulls reared under a low environment will perform just as well as though reared under a high environment when subject to a high environment.

But the reverse is not true. How often do we see highly fed bulls collapse under normal farming conditions, often never to recover.

I shall continue with the explanation next month.

 


 

The universe is dominated by Nature ( or call it what you will). Man thinks that he can decide what the world requires, what he wants, and can control it. Then along comes some disaster and in one moment in time it demonstrates just how puny man is, intellectually as well as physically. Man is just an animal just the same as any other animal and he forgets this at  his peril Many of his actions and many of the things that he constructs come slap up against Nature and so are destroyed by either disasters such as earthquakes weather or by environmental deterioration.    The universe is not static but is constantly changing as are the animals the  weather and all things in it . These changes may not always be visible but none the less they are occurring If man hopes to achieve anything in his short lifetime , then he should realise that he must work from within the  environment rather then against it.    Many cattlemen are constantly asking what size should my cows be? And of course this question is very important. If you select an animal that is outside its environmental suitability, then the first thing that will suffer will be fertility. You can then change its environment by supplementing it, but this can be expensive and you may not end up breeding an animal that your country wants Thus Nature demonstrates her resistance.

 Why not let your environment decide what the best cow size is on your land and your environment! In fact you do not need to wait while you try, to see what evolves. If you have a recorded herd of cows all you need to do, is to bring the nutrition of your herd to what you will require in the future, then find a number of cows that have calved every year and they will represent the size and shape of cow best suited to your environment.  Then you must purchase or use bulls that represent that shape and size!  You will find that if or as you improve your environment, either by fertilizer grazing or what ever the stock will increase in weight.

 I have been accused of saying that we breed the best Angus in the world.  “Nothing “ could be further from the truth.  I have no idea where we lie in the averages of the Angus breed in New Zealand, and neither do I care. All I do know is that what we are doing works, and that each year the cattle are superior to the year before.  That we are slowly building the high performance genes from out of our population, that these genes are those that perform best under grassland production.  That under our system the theory says there is no end to the improvement. But it is very slow, but it is cumulative    What may have confused breeders, is that I state at the beginning of our website that given our maxim use of “Generation Interval” and “Selection ‘ Differential” gives our herd a lead that cannot be overtaken !!  This just refers to the system that we are using, where time is the essence I All that we are doing in our Breeding Programme is, working within the environment and speeding up evolution.  There is no such thing as a perfect Angus or anything else for that matter. The main object is to keep the variability as high as possible so that the breeder can change the population in any direction at any time that environmental or economic situation’s demand.  Because it is the variation that you use to make progress but also to change direction as if necessary

 




Drought has at last broken and we have been having ideal light rain off and on for almost a month. Grass has begun to grow albeit slowly as soil begins to cool. Hopefully the soil temperature will remain high enough for at least a month to allow us to get some grass ahead of the stock. There is a warm tropical depression coming down from the North arriving next week.   If that comes it should provide us some warmish rain, which would be the best thing for the district.   If my lawn is anything to go by, grass is growing well.

I have told you about the problems in closing your herd. Although these problems may not seem very difficult to overcome, between them they are long term and very expensive. To overcome the “Bulmar” alone can takes about seven to twelve years plus. This is not an expensive time because it requires no culling or reorganisation.

But you must be able to recognises the bottom when you get there and  it is important, for this reason, that your recording  be accurate. Closing your herd means that you do not purchase any bulls and that bulls come from within your own herd. You can however purchase cows. Cows only represent one calf per year in a breeding programme and so have little or no effect. In fact they can be of some value in showing you whether you have made progress or have lost ground.

Recessive genes are different altogether.It can be very expensive as it requires heavy culling and the chances are that you have recessives that you did not know you had, but are building in your herd.This occurs when you purchase a bull carrying a recessive that neither the owner nor you realse that the bull has. When this happens 50% of the bulls progeny will carry the gene in recess.

If you happen to mate two interviduals both carrying the gene, then one in four will be a  clinical.   In other words will exhibit the gene.Two will carry the Gene and one will skip the gene altogether.  In the normal herd that carries recessive material then those recessives will go up and down.   As the number of cows carrying the recessive rises then clincals begin to appear.   The breeders destroys those clinicals and so the level in the herd drops.   He may cull both Dam and Sire of the exhibited clinical.   This will lower the level even further.Making him think misguidedly that he has eliminated it.   Still those animals carrying the gene in recessive remain.



 

We remain very dry and have had no significant rain since the last newsletter.   Going into Winter in these conditions could be difficult as we have no buildup and no reserves of grass. It has always been my experience that stock do far better in the dry than they do in one of those wet flush seasons where the grass goes straight through them.   My theory is certainly being put to the test this year but no rain at all is going a little over the top!

We have just had the National Angus Herd Tour here in the Wairarapa. Our province, demonstrated just how good Angus cattle are at.handling very dry conditions and what great forages they are when put under pressure. The weather must break sometime, all we have to do is to hang on in there, until it happens.  The trouble is that if it comes too late there will be very little grass to help farmers through the Winter.

This month I will explain stage two of the closed herd problems. This is recessive genetic material and how as the closed herd progresses these recessive  genes begin to emerge. If the bull is carrying a recessive gene and he is mated to a clean herd of cows,(ie none of the cows are carriers of the gene , then 50% of the progeny of those cow’s calves will be carriers of the gene. If the bull is then mated to a cow already carrying the gene then one in four will be a clinical,(ie exhibiting  the gene ).  Two will be carriers and one will skip the gene. This is not a lecture in population genetics but rather to explain what happens when you close a herd. Every time  you purchase a bull and use him in your herd, you bring in all his recessive genes if he has any.Plus all the problems that may be inherit in that herd.

In the closed herd any recessive genes exsistant in that herd  will appear over time, and have to be delt with.   You do this by culling all related  progeny plus dam and sire. It can be a very expensive exercise and takes about 10 years before all recessive genes dissapear. In one year 80% of our sale bulls we culled on bad feet and legs. I said to our geneticist “we can not afford this”   He replied “Hang on in there and we will go over the top” and we did, the next year we had no bad feet, and we have had very few since.





Our district has remained very dry.  No decent rain fell last week although N.Z. got some good falls in other areas.   Most of the stock in our area is now being supplemented and there appears to be no relief in sight.We are now back in a big high and weather has become hot again.   The Govt is just beginning to accept that the situation is becoming serious

 The Pinebank Programme is not   “Linebreeding” but is “Population Genetics”.   They are quite different.   Linebreeding sets out to improve the same bred selected lines of animals in your herd.

Population Genetics sets out to lift the performance of the total population of the animals that you are breeding.. Its objective is to gather together the high performing genes for all the characteristics that you wish to improve and build them into the population. As the genes gather so does the performance improve.   This is why it is an ongoing process and it is time, which is the essence.

In terms of improvement the 43 odd years that we have been going, is just a breath.   As I have said before the programme was originally based on 120 years .  After which we can just move sideways and go for another 120 years.

 Lets hope that my descendants have the vision and determination to carry it on.   Undoubtable there will be  challenges in the future as there were in the past, .but it is  interesting and rewarding.  

Linebreeding  has a large percentage of inbreeding, and inbreeding carries with it its problems.   When your inbreeding gets too high the first thing that suffers is  fertility ..   If you continue then your variation begins to disappear.

I often hear the comment that I want my bulls as even as peas in a pod!You do not, because as I have mentioned in the past variation is the means to improvement.   No variation, , no improvement possible.   The bigger the variation the more and faster improvement can be made.In our herd, the top of the variation in bulls is used each year.   Now lets look at what happens when you close your herd.   Make no mistake this is a long and expensive business, and that is why we do not recommend it.

The first happening is that you go into what is called the “Bulmar” effect.   It is a phenomenon that does not appear to be clearly understood.   At least no one has been able to explain it too me.

You go backwards.   No matter what you do your performance in your herd drops.   How far you drop, no one knows, but it is thought to be to the average level of the population of that breed in your country.

But let me again say that no one seems to know..   Because it is of no interest in the production cycle, then, as far as I am aware no one has done research on it.Anyway the Bulmar can take anywhere from 7 to 10 years to hit the bottom, then you are on your way to a very slow and steady improvement.The big thing about it, is that it is calmative and additive.   I think that there is enough in this letter for you to think about ! But it is only half of closing your herd so I shall continue next month

 




Dry,dry, dry.  Most of the country is in the grip of a  big drought.   With many areas being designated a disaster area.   No rain in sight either, when will it end no one seems to know. In our area we have been missing even the small showers that have in many places kept the supplementary feed crops going.   Farmers have no way of killing stock, as the killing works are jammed full with lamb kill.   Most of the lambs are being killed at lower weights due to lack of feed.   Even the dairy districts are complaining and have been included in the drought.   Something that is unprecedented.  Australia was worse then we were but now they have mostly had good rain, even floods in some places

I promised, this month,  to explain to you how closed herds work. But before I do,. there are some basic facts that you must get your head around.

The first one is: 

“That every bull or cow is only as good as the average performance of its progeny”.

 We cannot move until you have grasped that fact, and when you do then:.

“Therefore his best son is better than his sire ”.

If the best son is 10 kilos ahead of his sire and he mates an average cow,   he will leave sons 5 kilos better then his father.   Simple as that. 

You must get your head around that, because it is the basis of all productive breeding.

Now having grasped that simple fact after some considerable thought, we have another problem:

 “For every year that you use the same bull, you remain on square one.”

You are contributing the same set of genes into your population.   Now you have not a very long life, so if you are going to make any progress, you have to do something about it. You must change your bulls every year, making sure that each year’s bull is superior to last years.

Trouble is that there are big problems in doing so. Do not miss next month’s newsletter when I shall explain closed herd breeding much more fully.                                                                                   

 




The first Newsletter for 2008 and I wonder what the year will bring.   One thing is sure that the weather must be wetter then the drought of last year.   It is drizzling while I write this but we have had very little rain so far.   Everything is crossed that we get more. All the stock prices are down and dropping and the Slaughter Works are playing hard sell with the schedule.

Farmers out here will have to get control of their products past the farm gate.  We are under the control of Companies that not only can not run a business but whose marketing is abysmal.  The only certainty is that the cattle breeding programme will go steadily on and progress one more year.  It is nice to have this certainty.

Last newsletter I was telling you about Computer breeding Programmes and how in a simple Recording system, all calves were bought to being born on the same date, out of the same age dam  so they are directly comparable.

The next system is a herd Improvement Programme which is designed to improve certain characteristics in a predestined direction.   Added to all the calculation is its heritability, repeatability, approximately economic value and many more, plus in the present B.L.U.P. the performance of the animal’s ancestors are included.   All this is done in the cause of making the calculation more accurate.The BLUP stands for “Best Lineal Unbiased Prediction” which sounds very complicated, and is, but is also very sophisticated.

The big advantage of such a programme is that any part of it can be used separately, if that is what you wish to improve.

Its limitation is that it is of necessity ridged and in my experience “   For six years I was doing all the calculations for about 800 cows, and all the bull selection for  four herd.. I was selecting over 20 sires a year..It was before there were any breeding computer programmes”. My biggest problem was that I could see inaccuracies creeping in and I was constantly trying to adjust for them.It probably was not important in a population of that size, but it certainly was important, if I missed a good sire through one of my distortions.

But there is a bigger problem: the theory says “any animal exhibiting a characteristic carries with its heritability ( as estimated), regardless of the performance of it parents”Now if this is right then it is not only possible to have an “outlier bull,” that has such bad figures that it would not be used because its parents were not high performers. In fact this was our experience, where we had a bull that was 100 kilos above any other bull calf of his year at weaning (200days) but because his parents were not high performers he was heavily penalised.

Regardless we used the bull and he was a great success.   He would have undoubtedly have joined the A.I.team had he not had a small fault on one claw. I said it was an, injury.  William suggested it could have been genetic.   We continued to use him more then we use most of our sires.  His progeny test came out very well as we knew it would, and continued to rise each year of his use.

He was eventually sold commercially.   Last year we went to recover him to use him again but he had had an accident and had been destroyed

In a population like the American Angus Association there must be many of these outliner bulls being produced each year. The trouble is that most are unrecognised and are sold on to another herd, probably commercial and so are never used to their full potential.

Our first outliner bull appeared some 6500 bull calf matings after the herd was closed.   The second one arrived approximately 4500 bull calf mating after the first.   The third one came after approximately 3500 matings.

There has been some 6 outlier bull been produced so far and Pinebank 41/97 is of course one of them.

There is another one waiting in the wings which will replace 41.

As the closed herd progresses the length of time between these bulls appearing is deceasing.  I suspect that some time in the next ten years we will get one each year. As each bull appears, the herd makes a leap forward above the standard gain that we make each normal year.

Next month I shall explain how a closed herd works and can and does continue to make improvement.

 




Near the end of the year, and it has been as turbulent a year as we have ever had.  Dairy prices have gone through the roof at the same time as sheep and beef prices have dropped dramatically.

The result is that much of the land in the past that has been used for fattening lambs has gone into dairying.   The lift in dairy prices has carried with it a rise in cost across the whole agriculture industry.

Add to this the problem of the weather for the sheep and beef farmers, of which many do not have access to irrigation and many of the sheep and beef farmers could go out of business this year.

Government appears to have no idea of the problems, which is not surprising, as there is no one in Government that knows anything about farming.!!

We began with a unprecedented dry Winter and then we have continued into our normal dry months with no rain.  Lower areas of the East Coast that we are on, and below us into the South Island are already very dry with no prospect of rain.  Goodness knows where we are heading!!.

This month I am going to talk about Recording Systems, their uses and their limitations.

If you are interested in Stud Stock breeding and wish to improve your population, then some sort of Recording system is vital, as it is possible to go backwards as fast as you hope to go forward, if you do not have some method of checking what is happening.

A Recording system Brings every animal to a directly comparable bases.  It is a good system that tells you much about management, direction for selection, what to cull, and as far as I know you can get just as much progress using a Recording System as you can using one of the more complex programme available today

In 1965 when I began our present closed herd programme, there were no recording systems.

Dr Chand did all the calculations in the first couple of years and then taught me to do them so I took over my own calculations.  It became a very interesting exercise. For a period of about three years after the group was formed I did all the calculations, selected all the bulls that the group was going to use and did all the mating.

I found during the period all the limitations of all recording systems.  Computer programmes, are, by necessity ridged.  That means that allowances are static regardless of season and other variability.

 i.e.  18 month heifers get an addition of 15%, 2year cows get 10%,  three year cows get 5%, and any cow older is on her own.

If you are running a constructive breeding programme and making progress, then your 18 months heifers are the most modern part of your programme, they should be well ahead of the 15%.  In fact they are a good indication if you are making progress and how much.

I always adjusted to what I called an environmental adjustment..  I averaged all the yearling heifers and then added what the average adjustment.  I did this with all of the three ages of cows.

Next month I shall talk about The B.L.U.P.  Programme and what I see of its limitations

Happy Xmas to all my readers and a more prosperous New Year.






Green drought continues which means that the country looks vivid and green but there is no grass.  Weather is still cold which is surprising for this time of the year and we are still about 20% down on rain.  North westerly winds keep blowing and continues to dry up the little moisture that we have.  These conditions are from the bottom of the South Island right through to Gisborne.   Rain is predicted for tomorrow but I shall believe it if I see it.  Predications have been way out so far to date.  Capital stock is well down on the East Coast and freezing works have not opened as yet because of the lack of stock.  This makes the stock position worse as farmers cannot kill surplus stock and so they are left holding surplus stock that should go off the farm I remain sure that the government has no idea what is going on as there is no one in Government that has any experience in farming.  Imagine having an economy that is agriculturally based and having a government that is totally ignorant on agriculture.

My little bit on research..  If you select from a low environment, animals produced will perform just as well as those select from a high environment when put on a high environment.    But the reverse is not true.  In other word if you select from a high environment and then put them on a low environment then they will not perform. This finding has a lot of application when breeders are selecting their bull from the highly fed stud stock industry.  How many times have we all experienced highly fed stud bulls collapsing when they come onto breeders farm’s.   Unfortunately this carries on to his progeny.





Very dry Winter right through until September.  Then a little rain but not enough.  Still getting bits and pieces of rain but still need more.  Moving into Spring. A little feed around but little for the cattle.   Cows have finished calving near enough and for some reason the calves are looking very well.  

Cows appear to lactate better when they are lighter but the problem comes when you need to put them on a rising plane of nutrition when they go to the bull.   We appear to be having little trouble with our conception rates even when our cows are light.  The question is how light before we get into trouble, but calves would be suffering I think before conception rate would be seriously affected.

This month I am going to talk about the mating of yearlings heifers and calving them successfully.  We have been mating them for thirty years and so have been through the whole gamete of problems.

I began mating them in the 1970's as Dr Chang told me that as the industry was eventually going to demand it. I had better learn how to handle it and to breed cattle that were capable of calving.

There are many advantages in calving yearling heifers.  Firstly you identify any female whose fertility is doubtful.   Then every female is producing every year and so you have a much more efficient herd.   Fertility is the most important character in herd efficiency.  No calf no money no evaluations, no future.

Also if you have a breeding programme going, the heifers are the most modern part of your breeding programme.  In our case we take the top bull calf out of the yearling heifers and use it, and we have been doing this since the 1980's.  Many of our top sires and outliner bulls come from this age group of cows.

You also get a look a year earlier at cow performance.  We give the yearling two calming before culling , so that we get a better look at their ability.

We mate all yearling heifers except for the very worst, perhaps 1or2%.  Do not forget  that if your breeding programme is any good these heifers should be superior.  You can also get a better look at your bulls performance.

After twenty years of using the total drop of yearling heifer I would have to analyse them and have a look at where the subsequent top performers came from I found that the bottom 10% never left a decent calf.

That the top 1% were likely to be infertile and that the top producing subsequent cows came from anywhere in the middle in a total unpredictable fashion.

I shall discuss what is required in successfully mating yearling heifer next month.





When I began the present Angus Breeding program I was on the Angus Council and it is interesting to note that our cattle were only one vote from being barred from registration.  I had retired when it came to the vote.  The chairman was on my side and it was his casting vote that allowed us to keep registering.  Mind you, I would have taken the Council to court had I known of their apposition and it had been successful. Their concern was that I would breed something that would become far removed from the Angus that were then known.   Knowing their concern, I had suggested that they appoint an inspector from Council that watched the cattle that were evolving. Something that they never took up. In fact no-one ever came to the farm to see what was happening.  Pinebank had a Field day some 40 years after the programme began and one of the Council that had been on with me, turned up early for a private viewing of our cattle.   By this time, the American cattle had begun to flood the Angus breed in New Zealand with its change in type. The Council member expressed surprise that the cattle had not changed in confirmation as such but just represented a very much improved original Scottish type . I was returned to Council that years voted on nationally and a number of council set about implementing recording and the beginning of the new systems. As I voted off a second time I took the opportunity to give a little speech to Council which went like this... Never decry a young breeder that sets out to do something different.  He requires all the support that can be given him.   He is putting his money and lifes work on the line. He may not be successful but what he is doing may hold the seeds of what is successful. What no breed needs, is everyone doing the same thing.   There is no progress in that! All this comes about because everyone in N.Z is still doing the same thing, and time and again, I hear the young breeders being denigrated and it makes me so angry Having suffered the full volume from all quarters of being constantly told that it would not work.  I know how it feels and can and will check the expansion of new ideas I take no joy in being successful.   In seeing the industry selecting man made and often foolish goals.  In our case the environment dictates what animal appears and what can and will handle the ups and downs of normal environmental change

 




Constant cold frost and cold southerly storms have kept the soil cold and so have held back grass growth. Many stock on the East coast are still being supplemented something that is most unusual in New Zealand. Still Spring cannot be far away and today is a beautiful day with temperatures predicted to rise to 16 degrees which will begin growth a little.   Sheep and beef farmers have had a difficult year with 70% shown to run at a loss again this year.   All prices have been rising a little as our dollar drops which we all hope will continue. All meat marketing in New Zealand is abysmal with meat companies competing with each other to see who can sell our product the cheapest..  Something must be done and soon.  The Dairy industry is a constant reminder of what can be done, if only we had that much intelligence in the Meat industry

Research. 

 It takes four and a half of the amount of feed to put on a kilo of fat as it does a kilo of meat.  Fat is an unfortunate product and is constantly being abused but in the animal production cycle it is vital.  The enzymes for fertility are carried in the body fats.  Not to be confused with the hormones, enzymes trigger the hormones which begin the animal cycling.  This is why the fertility in thin cows is low hence the problem with fertility in the dairy industry.  Sheep farmers have known this for years.  Fat is also important as storage of energy and is important to maintain as a buffer for the winter months. In the young animal while it is gaining weight fast it is using its genetic ability to grow in that period.  As soon as it stops and gains weight much more slowly it has reached its genetic potential and is beginning to lay on fat. Pushing an animal hard during its formative years will no increase its skeletal size but becomes a waste of feed. Feeding young animals to make the most of their genetic potential is important, inadequate feeding will effect their lifetime production

 




Wairarapa weather has remained difficult.  We have gone straight from late drought into very cold temperatures and so restricting grass growth.  Much of the on farm stock are being supplemented, something very rare for us.   I do not remember ever having to supplement ewes at this time and for this period before.  There is still little or no grass growing. Let us spare a thought for the South Island that has just disappeared under snow for the third time this year.  Where has the warm winter that the met predicted gone?  Some districts in the centre and on the West coast are having a good season.  Poor old stock being challanged again.

I still hear the comments made by breeders at bull sales that the bull that they are eyeing is going to make them famous. The sooner that they learn that there is no such thing the better .Each individual is nothing in himself  “it is what he produces” that is important.   Breeders work on the assumption that like begets like in other words what you are looking at is what you are going to get.  This is hopelessly optimistic and extremely doubtful.

Every bull or cow is only as good as the average performance of its progeny.  Once you get your head around that, then its best son or daughter is better that it’s sire or dam and there of course is your method of improvement

Not only that but it is doing it in your environment under your conditions under your management etc. How much better can you get then that! How much more can you be sure to make improvement then that in what ever direction you wish to go.

 




My apologies for last months Newsletter.  I sent it, but the server failed to receive it.  It was only when one of my readers enquired, that I found out that it was not up, thus it was a bit late

The Wairarapa is very dry .  Unprecedented for this time of year.  Farmers are unloading Capital stock as we move into Winter without the reserves of feed that we normally have.  We will have to hope for a warm Winter (which has been predicted ) and that we will get some growth of grass.. In the meantime young stock are suffering.  We will have to make maximum use of “compensatory growth “ this year.  You remember the saying  “Every animal is genetically coded to reach a given weight at a given age, and that weight can be achieved at any time”. Cows will not return from grazing until just before calving so that means we should be able to save some feed of calving.   Country is our district is usually shut up at the end of May . For cows calving in beginning of September. For some reason the rising 2 year in calf heifers are holding on well.  All our yearling heifers are put to the bull and those failing to conceive are culled.   This is the first culling of our female stock.   The second cull comes after their 2nd calf, when calf weights are considered.

My bit of research.  In the present system of breeding where the breeder regularly purchases bulls, that bull carries with it all the recessives and instability existent in its parent herd.  The same applies to a cow of course. You can improve growth by this method of selection but that growth carries with it the extra food demand relevant to the extra growth.   If you cannot or do not supply that food, then the first thing to suffer will be fertility. Fertility is the most finely balanced trait in all biological species. We are now entering a period when we will be making use of the two genetic sayings “Every animal is genetically coded to reach a given weight at a given age and that weight can be achieved a any time”, and hopefully “the young cattle will be making use of compensatory growth”. It has begun to rain, steadily   Now we just have to hope for a good growth.





It has been a dry summer on the East Coast and we still have not had enough rain to start the grass growing.   Added to a very low lamb schedule means that our coast has had a difficult season. Cows have gone off grazing which is unusual for us because of the treat of T.B. or other diseases.  We have our fingers crossed that we shall get away with it on this occasion. It is our cows that I consider is our strongest asset.  Year after year they are subject to the harshest conditions and year after year they conceive with out effort. I have been handling cows all my life, some 60 years now.  In the early times if your cow was not fat they failed to conceive.   If you took too much fat off them in the winter they would not come back in time.  Now they are a different animal.   The pressure that we have been having them under for all those years is showing us just what can be done Fertility must be the main economic character. 

No calf, no profit.

I have some 20 genetic sayings that I have picked over the years from Geneticists that have been to stay.  Over the next period I shall discuss these sayings and explain them -

“For every characteristic that you add to a breeding programme, your progress goes down by “square roots”!

If you have a simple breeding programme and are selecting for one character ‘Growth’ then the heritability is 50%.   So if your bull is +20 and he is mated to an average cow, his progeny will be +10.

That is straight forward enough.  If you have a multi character selection programme and add Dam Traits then you are down to making under 1 kilo per year at the most so you can see how slow progress becomes.  This does not mean that you should not be in a multi selection programme because you must.   There is no economics in having the fastest growing bulls if your fertility is so, that you only have very few of them.   Dam traits are more important, then growth but less heritability.

 




Autumn is upon us and the trees are turning.  Their golden leaves make a beautiful sight in the valley below me.   Grass is short and the country around me still dry.  There has been a little rain but not enough to start the grass.   However more rain is predicted for the end of the week. We will have to wait and see. From where we are we will go into the winter short on grass which will make it hard on the cows again.   Not much rough feed around to clean up this year as well so the cows will end up living on rushes and rubbish. Calving weights are about a kilo down this year owing to the very poor winter last year. The calves should soon compensate.   “Every animal is genetic coded to reach a given weight at a given age and that weight can be achieved at any time” - A genetic saying.

Monthly research: In my wandering around the country, I have been constantly reminded about the concern commented by the older breeders” is the present Breeding Programme pointing their selection in the right direction.”?  If you use the best bull identified on your programme you have a faster growing bull but it also requires more feed.   The object of any breeding programme must be to produce faster growing bulls on the same amount of feed.

Every environment has different requirements and cattle must fit their environment if they are going to become more efficient.   If you close your herd, as we have done, then your environment becomes dominate.   If anyone wishes to see the type of animal that is productive to a high stocking rate of sheep, and is fertile and able to stand the fluctuating feed condition and remain fertile, all they must do is to come and see our herd.  Not only that but you will see bulls that compete, on a lot less feed, then so called best of the American cross cattle and is up with the best of them.

Having cattle that are able to handle an environment is vital if you are going to raise efficiency.

I have noticed latterly that a number of breeders have begun to use some of there own bulls. If at the same time if they demand that every cow calves every year then they will begin to start producing more efficient environment friendly cattle as the years go by.



 
It is getting very dry and no reasonable amount of rain is being predicted until May.  Just the thing to cheer up farmers in a year when all stock prices except beef are down!  Summer has been cold and cloudy until the last month but now it is making up for it.  It is surprising how such a small two islands can host such a variation in the weather.  The mountain range that bisects both Islands has a dominating effect.  Wet in the West, dry in the East. It is water as is always, that plays an important part in keeping the animals going and contented.  Plenty of good clean water and some shade and the animals will keep going. Environment how much does it control our lives as much as it does animals.  An interesting observation is that all humans are the same genus and if you can believe the book the “Seven daughters of Eve” we all trace back to 7 women.  Which means that all the observed differences among us is caused by our environment

My bit of research is going to be a comment   Let us define a breeding programme and its objectives.  Firstly we must define to ourselves whether we wish to improve the animals or we wish to make money.  Unfortunately they are quite different (Making money requires following fashion and giving farmers what they think that they want.

(Improving animals requires often deciding what the industry needs which can be quite (different and may require cutting right across fashion.  This can and often is expensive.

I do not and never have recommended, closing a herd as we have done.  It takes many years , during which time you are unlikely to sell many bulls.   Scientists said to me when they heard that I had closed my herd “My goodness you are game” I did not know what they meant, but soon found out.

In all populations there are high performing genes residing in the population.  I suspect there is the same proportion of high performing genes in the least fashionable herd as there are in the most fashionable. The objectives should be to improve all those characters that make you money, and as in our country, cattle have always been used to keep sheep pastures at their best ,, then the cattle must be able to perform while living off the left over rubbish.

Modern breeding programmes have shown us how to raise our animal growth, but as the growth has risen so has the food required.  We are now at the stage when the cost of supplementary food is making beef production unsustainable. Where have the Range cattle gone?  Because they most certainly have gone!

How can we get them back? That is the test of the modern breeder!!





It has been a funny season, but then I suppose that most of them are. After all they are all different. A very long cold winter put a lot of stress on cows especially as they began to lactate as they were already in low condition.  Calf weights are down this year demonstrating the cow condition effect.  This calf effect is very hard to overcome demonstrating how important nutrition is at this period.

Much to our gratification, at Pinebank, we have come up with another outstanding bull in Pinebank Pinebank 14/02. He demonstrated his superiority in the Glanworth Herd where Joe had borrowed him for the season. 

His progeny test is Calv Ease -0.6 Ges.length-2.2   Bth Wgt+2.8200 dy wgt +27   400 dy wgt +67   6ooDy Wgt+81.

This is only one herd’s progeny test and we are anticipating that he will improve on this, when other herds are included.  Also like some of the Group Herds it is a high performing herd and as such will tend to disguise his true performance.

Either way we have a very real replacement for 41/97 when he has to be replaced.  So much for the future.

My bit of research.   It is clear that many breeders have not read about or do not know that “80% of weaning weight is produced by the calfs ability to grow during this period.  Only 20% comes from milk.”

 These findings comes from Trangie.  Which means that selection for milk is a waste of time and could be detrimental to long term fertility in the cows.

Some years ago I used a bull which had a dramatic affect on weaning weight. I thought to myself how could this be.  The bull does not produce milk, it has no control on fertility or gestation.

The conclusion was its calves grew faster during this period.  So I had no trouble accepting Trangie’s finding, in fact I have know this for many years, with the result that milk production has never been a criteria in my Bull selection, provided that milk was of course adequate .

High milk production in cows lowers their fertility.  This is straight biology.  Lactation is far harder on an animal than gestation, and if your cows are run under commercial conditions then you will find that excessively high milk production cows will keep missing conception owing to failure of cycle.

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Too many breeders place too many of their own prejudices on their breeding herd.  They also put their own preconceived ideas on the population of cattle that they are producing.  These are too often based on what their fathers taught them, or, what they think the industry requires. All these goals are laudable if they happened to be right.   There is always a conflict between what the freezing industry wants and what the animal requires in order to be efficient. Freezing industries will wish you to breed a bigger and bigger animal and will constantly bring up reasons why you should.  They want the bigger animal because it costs as much to kill a very big animal as it does a small animal.   As you breed your animals bigger so you must carry less or feed them more and often both.  What you really require is an animal that is best suited to your environment, i.e. in N.Z. a grasslands environment.

Recording programmes are of necessity, rigid.  They must cater for all environments, all farming methods, and make no adjustments for the variations in climate. Farming methods,   soil fertility etc. Climatic changes can often make big differences in performance and ranking of animals.

If you have ever done your own calculations, as I have done, for a number of years, you quickly see errors appearing.   These you try to adjust and correct something that a programme is not able to do.   For instance if you are making “genetic gain” in your herd. The standard adjustment of 15% for yearling heifers is far to much.  In fact seeing how your yearling heifers are performing in relation to your old cows is a good measure to find out how well you are progressing or whether you are actually making genetic gain at all. All this is not a criticism of the existing B.L.U.P. programme but just does indicate the limitations of any computer programme. In fact if the Angus breeders consider that the breed is a Dam trait breed (which it is, although many breeders try to turn it into a terminal sire breed) the BLUP with its accent on historical data is the best possible programme. Dam traits of course are firstly fertility, secondly survivability of calf, then longevity of cow, then the ability to lose and recover weight quickly in order to conceive  etc. Either way the breed has a long way to go to achieve efficiency.




I am picking up a degree of concern about the latest B.L.P. breeding programme and the direction that it is taking the Angus breed.  It is a very sophisticated programme and is largely based upon historical data.

What people are concerned about is its apparent inability to identify efficient cattle as opposed to those responding just to heritability with the consequence that although the cattle grow faster that they take more feed to get there.

Recording programmes are after all just a guide and breeder must use his own knowledge and skill to select his sires. About every so many thousand mating a “outlier” bull appears. Unfortunately the modern breeding programme can disguise these bulls because of their background information. 

The genetic saying goes: “Any animal demonstrating superiority in any characteristic carries with it its heritability (as estimated) regardless of the performance of its parents”. 

Where these animals come from is!

 In any mating genes come together purely by chance.  Every animal has a number of high performing genes.  These outlier bulls just happen to pick up from both parents a number of these high performing genes so out pops one of these superior, sometimes very superior individuals.

The programme, because of its basis of historical data , writes these bulls down. Any breeder will recognise these animals when they appear because they stand out from your population.   These bulls should be used , and they will eventually demonstrating their superiority by their progeny test. There must be a lot of bulls missed because they were never identified and just disappeared into commercial herds.

 




It has been a strange Spring.  Soil has remained cold and this has restricted growth.. Some dairy farmers here are already down to once a day milking and they are wondering where they are going from here.  To make matters worse the gale force winds that we have been having are acting like a giant refrigerator and as they suck moisture from the ground they cool the soil even further.  That grass that is beginning to grow is showing a tendency to go straight to seed.

  The cows who came out of a very wet cold winter in light condition are taking a long time to recover.  It will be a big test on their fertility to see how many get back in calf.  To make matters worse it is the second year in a row that they have approached going to the bull in light condition.

 Over the years I have picked up a number of Genetic sayings which I thought that I would share with you and where necessary explain them to you.  These form the basis of all animal breeding. The first one is the equation that you use to make progress

The maximal amount of progress in any Breeding Programme is the heritability of the characters used, multiplied by the selection differential and divided by the Generation Interval.

The heritability for growth is 50%, so that is easy enough.

Selection Differential is how far above the herd average are the sires you use.  So if you are using three sires and they are + 10+6 and +5.  Your selection Differential would be +7

Generation interval is a little bit more interesting.   You must realise that for every year that you use the same bull, you remain on square one.  In other words you make no progress.  A number of Stud breeders use the same set of sires year after year.

“You” are getting older and you are going nowhere.  To make maximum progress you must change your bulls every year and hopefully pick better and better bulls. 

This would be an interesting exercise.




We have gone from what is probably the wettest winter on record, to the driest.   Three weeks of bright sunlight and warm temperatures baked the surface hard. The Met office was predicting a dry season on our coast and so farmers began to think that the drought was already here and so began dumping stock.  Then came the rain which varied all over the district but was adequate everywhere.  But still the grass has refused to grow.  Most farmers a relieved that they took the precaution to lower stock numbers Oh the vagaries of the weather

We began mating 15 month heifers in the mid 1970's at the suggestion of our geneticist.   He said that the industry would eventually demand it, so I ought to be well on the road with experience when the demand came. Much to my surprise there is still very few yearling heifers mated.  Beef farmers must be so rich that they do not require the extra money. Mating yearling heifers has many advantages.  Firstly you get an extra years income.  Then you get a look at your cows, this allows you to get rid of the shy breeders, bad milkers etc. We had been selecting straight for growth for sometime and with the resulting lift in birth weights.   We had a lot of calving trouble at the beginning.  We tried everything to reduce calving problems.  Science told us that the main time of foetal growth was the last 3 weeks of pregnancy, so we reduced feed for the heifers during this period  Nothing worked and we were still having to calve far too many heifers and wrecking some. Because of our breeding programme we have control of our genetic input and so we began selecting for low birth weights. For the last 20 years we have had no trouble calving yearling heifers.  We have found that as the years progress that we are getting what the industry calls more and more “line bending” bulls.  Bulls that have low birth weight but high growth. Next month I shall talk about analysing 20 years of heifer mating and subsequent performance.




We have just been through the wettest Winter on record, but now we are out the other side in the most beautiful weather. The grass is still being held up by too cold ground temperatures, but it must begin to grow soon

Outlook for the coming season, so the met office tells us, is for a dry summer on the East coast, which is where we live. Oh well that is farming and the stock will be tested again to see how they cope with the vagaries of the seasons. Right now the weather could not be better. Day after day of blue skies but cool with temperatures of around 14o. We have had no wind this year so far which is unusual. strong North-westerly wind is very limiting to our district. As the wind blows it sucks the moisture out of the soil acting like a giant refrigerator cooling the soil and stopping grass growth. This is the reason why the East coast often had such poor Spring growth. Not this year so far.

My bit of research

Some years ago it was fashionable to mass screen large commercial herds for selecting the cows which were weaning high weights of calves and collecting them into herds for breeding bulls. These herds were expected to leave calves that were well above average in weaning weight and hence put the breeder well ahead in a herd of efficient cows for bull production.

When you have a large volume of back data of grassland production you can do all sorts of things with it.

I decided to go into my data and theoretically screen the cows for weaning weights and then follow them through to see what happened

I found that it did not work. That you would have done just as well by taking a random herd of cows and begun selecting them for weaning weight. Why? I suspect it is the bulmar effect coming in and everything returning to the average

I sent my data off to the scientists and they agreed that my data indicated that mass selecting did not work

Selecting to improve genetic structure must be intensive, additive, cumulative, and directional.




2006 has been one of the wettest winters on record.  Three times the flat country below us has been covered in water, some of the water has remained lying for up to a week.  The losses in grazing land to dairy and sheep farmers in the Wairarapa and in the lower North island has been considerable.  Large areas of the hill country has slipped away and will take years to recover.  The dam that supplies our garden water has filled in and will require digging out before it can be used But Spring is here and the daffodils and camellia are flowering and although some more very cold weather is predicated the grass is beginning to grow if slowly.

It is strange to consider how out here in the South Hemisphere we are under water while part of  the rest of the world is having droughts.  Pity that we cannot find some method of evening it all out. When I was farming, in the Winter I use to think about trying to store all that surplus water in the Winter, so that is could be used in the dry season.  Very unsuccessful cogitation

My bit of research for this month is telling you about   “Compensatory Growth” in action. Some years ago the NZ Angus Association Council decided that it should go around all its members to make sure that they were keeping accurate records. My Brother and I had just taken over the farm as my father had just died. This is some years ago before drenches etc and we were young. The standard animal management for the stud cattle was in those days  was to wean the calves in among the ewes and lambs and forget about them until the Spring when they were bought in closer , looking thin and potty, and then they were fed a little hay . We showed the records, which had always been kept immaculately, to the inspectors. We then showed the yearling bulls. No comment was made.  The two year bulls were coming up for sale and were down at another farm some short distance away. We were topping or coming second in the local sale each year. So the bulls always came out looking very well as they were this year !  After all the inspection was finished we returned home and had a few drinks before they left. As they were going out the door they stopped turned around to us and in a voice filled with wonder said   “Do you mean to tell me that those yearlings that we saw ,grew into those two year bulls”. We were very surprised because we they did it every year and it never occurred that they would not. So we fell to thinking about this and wondered what would happened if we fed them like everyone apparently fed their calves.  So the next years we fed them hard feed and grain. They were driven down the valley on the hoof as yearlings and were observed critically by all the farmers, some of which were stud breeders, who use to shake their heads. But this year they weighed 100 lbs more then they had ever done before.  The farmers in the valley were surprised and delighted , with many expressions of surprise. At sale time the bulls weighed exactly what they had weighed every other year. In other words we had wasted all that feed that we had put into the yearling.  They were compensating one year to the next. I have been constantly saying that “compensatory growth” is available.  It is free so use it. Our cows are compensating every year as we strip the weight off their backs in the Winter and they efficiently quickly get back their weight in the Spring when the grass comes.  




When Winter comes can Spring be far behind.   Spring may not be far away but we have just been through the biggest rain storm.  Five inches of rain fell in 24 hours.  The entire valley floor that overlooks from our house disappeared under water and remained so for 3 days.  The country was already wet and so there have been quite a lot of slips on the hills which will take some years to re-grow over.  Oh well that is farming, I guess.  William was away having a bushman’s holiday in Australia, and for three days the farm was completely isolated.  You have to cross a large culvert to enter the farm and that was 6 feet under.  Animals had to cope on their own but now that we are back, they seem to have done very well

This month I am going to discuss Breeding Programmes to see if they are filling the breeder’s aspirations. To my mind the objective should be to increase production with-in a given environment.  In other words raise efficiency within your present farming system, soil type and farming method.  If you have a commercial cow herd and it is your desire to replace it with a stud breeding enterprise the stud cattle should be able to fit straight in, and compete, as did the commercial herd, for available resource.

The present BLUP programme with its accent upon Growth plus, Milk makes no account of efficiency.  All the present analysis done to demonstrate how successful the present programme is in raising, for instance growth, just demonstrates a classical response to heredity.  It is easy enough to raise growth; you have to feed them more. If we continue in this manner the logical conclusion   of such a method is to end up with a dinosaur. But you can only afford to run one and although they may look spectacular it would hardly be profitable

There is a very high degree of variability in efficiency which means that there is much room for improvement.  The big problem is to identify those animals that are superior for efficiency. Trangie, in Australia, has done the only study that I know of showed that there is a 100% difference between the efficiency of the best and worst cow in a  population.  Efficiency in this case being “the number of kilos of feed consumed to kilos of calf weaned.”  If you could only identify those cows that were the best and use their sons you would be making progress upon this most vital of characteristics




We are in the month of our shortest day and so far Winter has been kind.  Ground temperatures are still warm but grass has stopped growing.  Cows are now moving into cleaning up mode and during the next 4 months they will loose 40 to 50 kilos of weight.  As they move into the later stages of pregnancy they will begin to gain weight until they calve, after which they must have the ability to lay on some fat in order to conceive again while they are lactating.  Something that our cows have the biologically ability to do as we have no problem with conception rates. Since beginning to write this newsletter we have had a cold Southerly come through which has stopped everything in its tracts.  In NZ there is nothing between us and the antarctic and it does get very cold

This month I am going to tell you what happens when you close a herd of cows and so “all” sires come from within herd. I had better begin by saying that I do not recommend that breeders should close their herds..The time to make progress is too long and the cost is too high First thing is that you go into the “Bulmar” effect. This means that no matter what you do you go backwards. Even if you use the best bull in the world  This can be explained but I am not going to do it here ( as it would take too long). How far you go backwards I do not know.  I suspect that it is to the average performance of the population.   After you bottom out !! You begin to slowly climb.  You can mathermatically calculate  out how much you are gaining per year by the followering equation  “ the heretibility of the factor multiplied by the selection differential divided by the generation interval”. That might sound very complicated but it isn’t The heretability for growth which most breeders begin selecting for is 48% or 50% near enough. Selection differential is how far the Sires you are selecting are above average.  W e are selecting three bulls at +5 +10 and +15 your average selection differential is +10 so  50% of 10 = 5. If you are useing yearling bulls and yearling heifers the shortest generation interval that you can have is 5 years So 5 years divided by 5 = 1 so each year you will make a kilo of gain.  The big thing is that that the 1 kilo that you gain becomes additive and culmative.  There are other advantages too which I shall explain next month.




Autumn has been kind this year.  Enough rain, grass has continued to grow and stock remain in good condition.  All prices for stock are well back and it appears that our very good economic run is over for the time being.  House and land prices remain excessively high and land prices are well outside their economic value.

The good news is that Pinebank has again got its steaks in the “Steak of origin” finals in fact of the finalists, 50% are Pinebank Bred.  Let’s see what happens.  I know that a number of other breeders were very keen to knock us off the top this year and every effort has been made to do so.  Final judging is on this coming Friday.  It will be interesting

We began in Pinebank, testing our sires for the tenderness gene last year and of the 9 bulls that we have tested so far all nine have had the tenderness Alley .( Alleys is a part of the gene)  Gene Star have bought out a new test and in this new test this year we averaged 8 stars for tenderness.

It would appear as though that we have carried the tenderness gene through with those old Scottish cattle that we have maintained.  The present Breeding programme that has been implemented since 1967 has improved the efficiency of the cattle and moved on its adaptability so that today there is little semblance to the original small cattle that were imported in the late 1800's.   Our big challenge is to know ‘as we slowly improve economic factors, how far do we wish to go.Theory says “that there is no end to the improvement in anything biological, it will slow down but it will go on” How far can you push growth without losing, say tenderness and marbling.  I suppose only time will tell us.  As long as variability remains, improvement remains possible.

 




We are now in autumn and although the weather has cooled very quickly this year, the ground appears to have retained its warmth and the grass is growing well. 

Calves have stayed on the cows until now owing to the dry spell and lack of feed.  This present flush of feed will allow us to get on with weaning.  Calves were of course weaning weighed at 200 days.

All stock has certainly appreciated the steady misty rains that we have had. Spare a thought for parts of Australia that is very dry and some areas have to sell cows.  Let’s hope that they get their yearly rain in October as usual.

When I began learning about genetics my teacher quoted his “Genetic saying”.  Since that time whenever a scientist has quoted one of these sayings too me I have written it down, and now have a list which I either trot out at the relevant time or take out and study to make sure that I am  remaining  on the right tract. 

The saying was: “The bull with its multiplicity of offspring controls not only the amount of progress in any herd but also its extent. The cow is just a gestation medium for improvement”   Tell that to your wife!!

If you have a single sire herd then half of every calf born in each year belongs to the bull.  How important does that make the bull? There are in every herd some very high performing cows for your environment.  If you can identify them then use their sons.  How much would you be better of than selling that bull to someone to make use of her efficiency?   If you are looking at raising efficiency in your herd then the most important characteristic by miles is fertility.  No calf, no money.  After you have got your calves you can worry about how fast they grow - tenderness of the meat or other factors etc.


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The country is drying and we are entering autumn. Rain is necessary while the soil is still warm to give us the grass growth that is important to carry us through the coming winter.  So nature throws up her environ to test both Farmer and animals challenge their ability to cope.   To add to the problem, autumn has come early this year and as we move into winter we hope for rain. How many other farmers, ranchers, and people of the land go through this dilemma most years? Stock are still holding on well but we will be turning out the rams early this year while the condition is still holding on the ewes and looking for something to help us through the tupping.  Lambing percentages could be down next year.

My bit of research is about Compensatory Growth. There is a genetic saying that says:   “All bulls are genetically coded to reach a given weight and a given age and that weight can be achieved at any time”. There is a proviso to this saying, that if the animal‘s skeleton is stunted due to low nutrition in its early life then its genetic potential is never realised. For many years I put my rising yearling bulls under nutritional stress to see which animal could perform the best under those conditions.  The results were surprising from two angles. The variation was very high with some bulls performing right out the top and then a big gap and then others very poorly. I employed a farm advisor to provide an outside look at my farming operation and to give me advise some of which I took and some I forgot.   He commented on my stressed bulls that I would never get them up to saleable weights by bull sale date.  We had a bet that the bulls would not get up to 400 kilos by Xmas some 4 months away. I had grass shut up for them so I drenched them for the first time and put them onto the grass and they proceeded to grow very fast.  In other words they began to compensate.  By xmas I bought them in and weighed them and they had reached on average 420.  Now this happened on a regular basis so I knew that it would occur.  What also happened was that the outstanding bulls disappeared into the mob which meant that the other bulls had caught them up.  However in the particular year that I have in mind one bull was very dominate during the stress period.  Although he went back into the mob in fact the others caught him up, I decided to use him as a sire and he went on to perform very well So impressed was the Farm Advisor that he got me along to talk to a group of top farmers.  At the same time there was a scientist talking on rearing and fattening Dairy Bull s which was and still is a standard way to beef farm in New Zealand.The scientist was adamant that you must never let a dairy bull get under stress otherwise he would never recover. I did not believe him and still don’t but I made no comment..  Animals compensating which means they make more efficient use of their feed and grow much faster until they get to their genetic level is a common phenomena and breeders use it often without realising what they are doing. It is free.  It is economic and it is available so use it. But be careful that animals are fed enough to keep up body heat and to provide enough energy.  But it is not necessary to put on fat during this period I shall tell of another experiment we did that illustrated how we wasted a lot of money feeding cattle through another winter.




February is half way through and on the farm we are in the middle of scanning ribeye and intramuscular fat in the yearling heifers. Shortly we shall be scanning for pregnancy. That will finish with the heifers until calving.  Cows have still to be pregnancy tested and checked for structural soundness. We do that every time they go through the cattle yards.  It has been a good season; every time that it has become dry we have had enough rain to lift things enough.  All the stock is in good order. Bulls have all been sold and delivered.  Bulls kept and used by ourselves as studs have come out from the cows a fortnight ago and are now being blood tested before selection for those bulls that we are going to collect, and are being built up before going to the Centre.  Those bulls kept for 2 year sale next year are coming along well and there are some exceptual bulls among them

Our website appears to have demonstrated that we are producing cattle that will meet the requirement of the overseas markets. In our first year of operating our web we have sold semen and will have calves in 18 states in U.S. and 2 provinces in Canada not to mention in Australia, South America and of course New Zealand. The “Sustainable Genetics” our agents in America refered in a newsletter to a website in N.Z of the “Rarebreeds.co.nz” in which I was reputed to say that the Pinebank Herd came from the “Lowling Angus”.  This is completely untrue. I wrote an article for the Rarebreeds magazine that the Scottish Angus was a rare breed as there were very few in any cattle other that ours left.  I never passed the article that was written and did not know that they had printed an article and put my name to it. Let’s put the record straight.   We have nothing to do with the Lowline cattle.  Our herd was closed long before the Lowlines came on the market.   We would have been 10 years down the tract of selecting our pure Scottish Angus for productive and economic traits by the time the Lowlines appeared. Lowlines may be pure Scottish Angus I do not know but they came from a Trangie experiment where Trangie had three lines of cattle selecting for growth. One was being selected for high growth. One was a control to check progress. One was being selected for low growth.  The Lowline cattle came from the low growth line, and ended up very small animal that the lifestylers could keep in the back garden.

Our cattle are nothing like the Lowliner and never have been.

Soon as I say the article that was in Rarebreeds, I wrote correcting them ,they tell me they have corrected it, I must check and see For those of you who read my Newsletter and 41/97 calves. I await weaning weights with confidence and much interest. If any of you would like to send them too me along with their comparative data of other bulls against them, I will get around to calculating it. I shall return the results back which is actually what is happening. Corrected for age etc but no heritability, no approx economic values, no repeatability, just what has happened Have a good year, and plenty of live calves! They are what makes you money.





It has been a funny season weather wise. No summer sun to speak of, or holiday weather. The upside is that it has produced enough grass, even though it has deteriorated as it has gone to seed and become all top. Great for the cows though, and they and the calves are both doing well. Bulls are out and have been working well and are just about to come in again, in fact many of them are back in already. Using a completely new lot of sires each year means that as they are yearlings, they must be observed very closely to make sure that they are working properly. It was not very long ago that I was approached by one of our research institute’s to enquire whether using yearlings was fertile, and did I find using them successful. We use them of course to speed up our generation interval.

Research.

Upon reading the American Angus Journal I find that conception rates in Angus cows appears to be a problem and that cows appear to be hard to get in calf while out on the Range. All biological species must be able to handle their environment what ever it may be. Fertility must be the most important economic trait as no calf no money, and we can all do with more of that! So what do you do if you have a fertility problem? Firstly you make sure that you do not have a disease problem. Then you look to see whether you have a selection error, in that you may have selected the wrong type of cow for your environment. If you wish to know what the best cow for your environment is, and you are recording, then you search through your records and find a cow that has calved every year, if you have one, and she will be the type and size of cow best suited to your environment. I have told you all this stuff before but it cannot be emphasised enough after all, as I have said, fertility is all important.

Pinebank wishes all the readers of our Newsletter a prosperous, and happy 2006. We hope that the sun shines for you, but not enough for a drought.

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 Xmas is on us once again and the year has gone in a flash.  Bulls are all out and working well.  It is necessary when having a new set of yearling bulls out each year that they are observed very closely to make sure that they all are working.  It is not unusual for some of them to take some time to begin.

The season has stayed with us very well, and all stock are doing well. Calves are growing well, and those that we picked at the beginning as potential sires are living up to their expectation, with some very interesting calves are coming on.

As we are working  within a grass environment , each year shows a small improvement in cow traits and in bull growth. Ours is an ongoing and cumulative programme which is most exciting to be in.

Each year we wait for a new generation to be born knowing that it will be an advance on the last

Breeding news

To understand how our programme works there are certain basic rules you need to understand .  These rules are the bases of modern breeding techniques. “Every bull or cow is only as good as the average performance of its progeny”.

This requires some consideration, however once you understand this it is perfectly logical. Then therefore has a better son then himself or daughter then herself..  The future generations are better then their sires or mothers.  Tell that to your son and of course he will agree with you. By selecting sires out of cows that have calved every year and weaned a high rate of calf so you build in Dam traits with all their ramifications. Like fertility lends ability to cope with the environment, and ability to conceive early and rear a good calf , despite the conditions.

If the son you select is 10 kilos above average and he is out of an average cows the progeny will be 5 kilos above the sires average. In other words the son is superior to his sire by 5 kilos.  Heretability is near enough to 50%.  And believe me it works.

Pinebank, Glanworth and Shalom wish all its reader a very “Happy Xmas” and a prosperous New Year.

 



Pinebank Newsletter - November 2005

 Spring has sprung and calving has finished and a very good calving it has been. The weather has been unusually kind with calf survival rate high. Calves are doing very well with some exceptional and interesting calves coming on. Just as the dry weather was becoming of concern we have had a good rain and so the grass has been pushed along and it looks at the moment that we will be set up until at least Xmas. Mating groups are being sorted, always a time consuming time and bulls will be turned out very soon. Watching the calves grow it is surprising how quickly you latch onto a particular calf as one that is going to make the sires list. As you know we use approximately 4 bulls per 100 cows, mainly to make sure that we get the top bull each year so there is plenty of selection room A number of overseas breeders are coming to view the cattle so it will be interesting to hear their comments

Breeding Comments For every year that you use the same bull you are going nowhere, you stay one square one. The bull contributes the same set of genes each year and your average performance stays the same. If you are a keen breeder and want to improve your herd you must change your bulls as often as possible, going in the direction that you wish to go. This is why we change bulls every year, that and the fact that because we have a closed herd it reduces our inbreeding level. The object of any breeding programme should be to select bulls bred in the same direction as your objectives and then feed them into your herd breeding in more and more directional high performing genes. It is the average performance of your herd that you must lift not the odd high performing individual. Especially if you are selling your best bull to some other herd. Any improvement that you have made is gone.


Pinebank Newsletter - October 2005

Before beginning farming and breeding news for this month, spare a thought for all the natural disasters around the world.

We in New Zealand are thinking of all those people involved and in may cases have lost so much We have just ended what has been the best Spring ever. Survival rate in lambs has been unprecedented and bodes well for a good season. As I said in the last Newsletter twin calves continued to appear. Calving has virtually finished and we have 8 sets. We seldom allow the cows to rear twins because experience has shown us that if you have twins on a cow the stronger one dominates the weaker and so one does much better then the other. And the other problem is that after rearing twins the cow often fails to conceive the following year.

Breeding News.

The greatest breeder of all time and in all animals is “Nature”.

Upon consideration you can see that she covers all contingencies. Not only that but of course nature breeds animal that best suit their environment. In many biological species those females that fail to conceive graze the outside of the herds of females with young and so are the first to sustain attacks by predators. They also act as sentinels and again protect the nursing mothers and young of their species. Behavioural patterns are hard wired into our genes and are primally based upon survival.

The best and strongest and fittest males each year compete for the females and the strongest wins and so fertilizer the next generation. When male number one begins to tire then next one takes over and so forth. What better method could there ever be for selection,survival plus improvement in fitting environment than this. Most females are not programmed to be aggressive except in the defence of their young. This is designed because in the female of all species the female only has one progeny per year whereas the male can fertilize any number of females. You can kill off any number of males in a population and provided one survives the population continues. It wasn’t until humans took over the controlled breeding of animals and began making arbitory decisions, often selecting animals unsuited to their environment that the whole system became thrown out of balance with nature. Selection must take the environment into account to be successful and efficient. Fertility must be the first consideration in all breeding programmes because if the cow does not calve there is no profit only high cost of having to run a cow through another year when she makes no money. How many studs have a heap of dry cows?

Next year Pinebank will have calves in 18 states in North America and in 3 Canadian provinces. Slowly grass-based genetics are beginning to take its place in the grain based cattle breeding populations of the world.