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Breedplan must become a genetic evaluation
system that all Angus breeders want to embrace, not one that they feel
obliged to adopt
ADDRESS TO THE BOARD OF ANGUS
AUSTRALIA ON 22nd NOVEMBER 2005
EBV’s – Are they really breeding better cattle?
David G
Raff, Angus seedstock producer since 1965, member National Beef Recording
Scheme since its inception, President Angus Society 1985/86.
Back in the early 1980’s I was on the Council of the
Angus Society of Australia when it made a groundbreaking decision to adapt
Angus Group Breedplan. This decision had my total support. Its purpose was to
help seedstock producers identify the superior and inferior traits of
particular animals and in turn provide data to the commercial bull buyers to
assist them in selecting bulls superior in traits of economic importance to
their breeding program.
Unfortunately, today, Breedplan has been hijacked by
many people in the industry, including ambitious seedstock producers,
academics and industry consultants who have little knowledge of the basic
functions of a beef animal and of the practicalities of animal reproduction.
Breedplan is being over sold by Angus
Australia, over used by breeders and abused by entrepreneurs.
Its accuracies are too high, the genetic gains as
indicated by EBVs are exaggerated and the correlation between raw data and
EBV’s is conflicting.
The basic functions of animal breeding are beginning to
be ignored by many seedstock producers in their quest for so called carcase
excellence and a good set of figures – EBVs.
Those academics and industry consultants who have devised and promote
Breedplan continue to show incredible arrogance, an unwillingness to listen
to concerned breeders and a refusal to acknowledge that their system might
not be perfect. They continue to treat Angus breeders with contempt.
I have been contacted by breeders from all over Australia frustrated by
the fact that no one will listen to their concerns. They are constantly being
told, as I have been, that the system is right and they are wrong with a
longwinded technical explanation far beyond their comprehension. If they
persist they are virtually ignored. Most have just given up trying – what
indignation.
There are another large group of breeders whose breeding programs,
genetics and marketing have been focused on Breedplan and EBVs who are now
becoming increasingly disillusioned with the system and the type of cattle
they are now producing. Naturally these breeders cannot go public with
their concerns.
It is not only Angus breeders who have supported me. A couple of
weeks ago I was invited to address a BIA meeting in Rockhampton. A group of
fairly substantial and influential seedstock producers who have been long
time users of Breedplan, some second generation, unanimous in their
dissatisfaction with the system and frustrated at the lack of acknowledgement
of their concerns.
People I have never met from all breeds of cattle have all expressed
similar views and encouraged me to persist.
Let me quote from a response I had from the Breed Development Officer in
April when I said that I had been blown away by the support I have received.
“In many
cases it is easy to gain support when you criticise technology. Because
people
agree with you does not necessarily mean that the technology is wrong.”
This just highlights how out of touch
senior management is with its members.
I recently asked Dr Ced Wise, our ET vet, “Of all your
clients how many are happy with Breedplan?” His reply was
that of his 300 clients in eastern Australia and New Zealand only three
really believed in the system – just 1%.
I am sick and tired of being told to
‘Produce evidence in writing and it will be
looked at’.
Surely the fact that so many people are not
happy with the system is enough to
suggest something is wrong. Whether the
science or technology is right or wrong is
not really the issue, the issue is that the
outcomes are not right as far as the users are
concerned and the cattle are the evidence.
The EBVs themselves, if taken out of context, can send the wrong signal
to the commercial bull buyer. For example high birth weight cattle are not
necessarily hard calving cattle, high mature cow weight cattle are not
necessarily inefficient feed converters nor are positive fat cattle always
easier doing or more fertile that lean cattle.
To set bull selection and breeding parameters based on EBVs, such as
$Index Values, is dangerous, inaccurate and misleading. Too much emphasis is
based on assumptions not fact and the priority of weightings is questionable.
At a recent BIA meeting in Rockhampton a group different breeders all had
different weightings for a suggested $Index for the Brahman breed – Who was
right and who was wrong? Each was right because every management system,
every market every feeding system and every environment will have different
priorities. You cannot just set one for all.
Why am I
so concerned?
Because when a performance evaluation system was initiated back in the
1970’s I really believed that it had huge potential to provide a meaningful
and accurate way to measure those traits that are measurable. It would
provide valuable information to both the breeder and purchaser of bulls – it
would take the guesswork out of selection.
1981 sale catalogue
At our first bull sale in 1981 we published weight ratios, scrotal
measurement and frame score in the sale catalogue. I think this was a first
for any breed in Queensland.
In 1987 we published Angus Group Breedplan data, a practice continued
till today.
Up to two years ago we have been strong advocates of the value of
Breedplan for our clients.
This year we continued to publish EBVs as well as raw data in our sale
catalogue however we made it quite clear that Breedplan, in its current
format, no longer has our confidence and strongly advised our clients to be
cautious in its use.
I worked hard within the Angus breed to have its breeders adapt
performance recording and for the Society to implement Angus Group Breedplan.
I feel responsible to those who supported my campaign who, now feel as I
do, that the system is failing. I also feel responsible to those who opposed
my views as many of their fears have proved to be right.
Breeding and selling Angus bulls has been, and still is, my entire
livelihood, I started with six Angus cows and a bank loan and this year we
joined 400 HBR and APR females and we still have a bank loan!!!
Angus cattle have been good to me, that is why I am so passionate about
the breed.
I don’t
want Breedplan destroyed but I want it made better.
The outcomes are not what breeders
want – they should be.
I want
the breeders and users of Breedplan to be listened to and made feel part of
it.
Probably the one issue that breeders
have found most frustrating.
I want
the knowledge and skills of real cattle breeders recognised.
On Landline two weeks ago a
prominent merino stud manager commented that while science had played a role
in breeding better sheep, it would always be the eye and practical skills of
the stud master that will make the difference.
I want
an acknowledgement that Breedplan in its current format is not working.
The
‘WE ARE RIGHT’ – ‘YOU ARE WRONG’ mentality must change.
What I am going to say today will no doubt offend some in this room, I
make no apology for that.
There are some in this room who have known me for a long time – I know
they can vouch for my sincerity and my passion for the Angus breed.
I don’t pretend to know all the technicalities of Breedplan – my time is
not spent sitting at a computer crunching numbers, it is spent out in the
paddock or in the yards with our cattle.
All my life has been devoted to breeding Angus bulls. In that time there
would not be too many calves that I have not seen the day they were born or
weighed at weaning or scanned.
There would not be too many cows that I have not AI’d at least once nor
would there be one bull that I have sold without having been personally
assessed by me.
I live with our cattle and I think I know them pretty well
Seedstock producers have adapted
Breedplan for a number of reasons.
*As a selection
guide and use it as a tool within their program.
This was always the sole intention of Breedplan but one many ignore.
*As a sole
selection guideline.
Unfortunately there are many
breeding Angus today who have little knowledge of animal breeding and
reproduction and see Breedplan as their sole selection criteria.
*As a marketing
tool.
Breedplan provides an excellent marketing tool and one we all exploit
and take advantage of.
A pastoral company was once asked
why they only source bulls from performance orientated herds – their reply
was that it was their way of justifying the directors spending good money on
bulls that would be seen to be making genetic progress.
*Because they feel
they have to be seen to be users of technology.
So many breeders have contacted me
saying that they disagree with the system and the type of cattle it is
producing but market pressures have forced them to comply. As a result their
herd is full of what they consider undesirable genetics yet they cannot
publicly admit it.
*A combination of
the above.
Probably best sums up most of the users – including us.
Forty-one years of hands on experience breeding, weighing, measuring and
scanning Angus cattle and with nearly 3,000 calves recorded with the National
Beef Recording Scheme (now Breedplan) since 1976 has given me a valuable
insight into the trends evolved with the various selection pressures which
include performance data.
It is
this experience and those observations that have led to my concerns and to
the conclusion that Breedplan, in its current format, is failing to provide a
performance based selection system that truly reflects the needs of both the
bull breeder and bull buyer.
Alarm bells began to ring in 1999 when the first sale bulls of our new
Red Angus venture were scanned for sale.
No.
Group
MBL Av. EBV Av.
21
Black
bulls
4.10
+0.4
18
Red
bulls
4.08
-0.3
With an equal number of black bulls of our existing genetics and running
under identical conditions, the IMF% scan was virtually identical for both
the Red group and the Black group.
When processed the Black bulls had IMF% EBV’s above breed average while
all the Red bulls had IMF% EBV’s below breed average, in fact not one Red
bull had a positive IMF% EBV in spite of a Red being the highest scanning
bull.
At the same time major contradictions were detected in other traits in ET
flush brothers and with the correlation between birth weights and EBV’s.
Both ABRI and the Angus Society were contacted seeking an explanation –
their response was slow, technical and unsympathetic.
Similar contradictions in other traits are common and continue to be of
concern to us.
Many high $Index Value cows have been used as recipient cows because they
are poor doers or of suspect fertility and have less desirable structure.
Sires we have purchased have experienced major changes in traits after
having progeny analysed.
Scrotal Size EBV jumps from the lowest 10% to the top
5%.
Camden View Black
Douglas V3
In
2005 after his first progeny were analysed his Scrotal Size EBV jumped to
+2.4
Eye Muscle Area EBV falls from high 15% to low 10%.
Purchased
in 2001 with an EMA EBV of +2.3.
In 2005 after having progeny analysed his
EMA EBV has plummeted to +0.2.
Home bred sires used have had their EBV’s and those of their progeny
‘discounted’ in spite of actual performance data being comparable to high
profile high EBV bulls. The EBV’s of high profile AI bulls has not been
reflected in their real performance.
There are major discrepancies in EBV’s and raw data appearing in large
groups of animals (100 plus) run under identical management. The difference
in EBV’s and raw data of our 2005 sale bulls sire groups was alarming. The
progeny of the highest IMF% EBV sire was below the average of the group for
actual IMF% scanned.
Scanning/EBV
for IMF% 2005 Sale Bulls - 120 bulls in group
Sire
MBL% -
Scanning
IMF% EBV
Group
Av Sire Group
No
Sire
Av Sire Av
.EBV Dam Av
EBV
Front
Runner
3..5
8
4.6
+0.7
+0.56
Gold
Label
3.5
6
4.3
+0.9
+0.22
QRF
X167
3.5
16
3.1
+2.0
+0.38
Ultravox
3.5
10
3.1
+1.8
+0.28
Many traits expressed by EBV’s in our herd, such as mature cow weight,
calving ease, fat and others, are not a true reflection of the animal.
Older animals, both bulls and cows, are disadvantaged with lower numbers.
Animals by high profile bulls have exaggerated numbers.
This year we have calves on the ground by a bull called Wallah Abaridy.
He was born 46 years ago and has what we would consider to be Australia’s
worst EBVs – negative for nearly all EBVs and $Index Values. His progeny
should be shockers!! We had a 40 kg calf in 1970 and we had a 40kg calf in
2005!
BIRTH WEIGHT – ACTUAL V EBV
‘Are the genetic gains as indicated by Breedplan exaggerated’.
Year
Number Birth
weight
EBV
1986
85
35.8 kg
+2.8
2003
231
38.2 kg
+5.3
Increase
7%
90%
Extract
from January 2005 Angus Group Breedplan
Report
for Herd QRF
RAFF
The genetic gains as indicated by Breedplan are exaggerated. Our actual
average birth weight has fluctuated between 35.8kg and 38.2kg since 1986 yet
our EBV has gone from +2.8 to +5.3, a 90% increase!
Reply from Hans Graser “If this difference doesn’t reflect an increase in the genetic value for
birth weight of your group of animals, what have you changed in your
management or feeding which would account for this increase. I know you can
argue nothing and this is just seasonal.”
TRAIT BY TRAIT
Calving Ease
*Gestation
Length Easy to measure with
so much AI. An under used trait for calving ease.
*DIR
Absolutely no relevance in our herd. Just an assumption that high growth,
high birth weight cattle are hard calving.
*DTRS
Total contradiction in our herd. Daughters of high growth, high birth weight
animals are usually easy calving.
*Birth
Weight
Most over used trait that sends misleading signals to bull buyers. A high
birth weight Angus is still low when compared to other breeds.
Seasonal changes influence birth weight.
How many birth weights actually submitted are actual weights?
So many other factors influence calving ease. Calf shape, cow confirmation
and pelvic area etc.
Birth weight is not the most important factor influencing calving ease below
an acceptable level.
Birth weight is
one small part of calving ease. Continually using low birth
weight sires has
a diminishing effect on each generation. This year it was not
our high birth
weight EBV heifers that experienced calving difficulty but the
daughters of low
birth weight bulls!
Fertility Traits
*Days to
Calving Fine under
optimum environment. We know our regular breeders.
*Scrotal
Size
Easy to measure – actual size means more – no advantage in extremes.
40 cm scrotal size is adequate.
Samson S 29
CE Dir CE Dts GL BWt
200 400 600 MWt Milk
SS DC CWt EMA
Rib Rump RBY% IMF%
-2.5
-2.2 -0.9
+7.5 +43 +67 +89
+72 +18 -2.1 -2.4
+50 +3.0 -1.1
-1.5 +2.6
-0.1 .
-10%
-5%
-5%
-1%
-15%
.
‘Birth weight EBV’s should not be
influenced by growth.’
Raff Samson S29 sired 26 calves in 1999 with an average
birth weight of 35.3 kg – breed average.
Because his growth increased his
birth weight EBV increased to +7.5 or the high 1% of the breed.
S29 Calving-Ease EBV’s
DIR
-2.3 low 15%
DTRS -2.1
low 5%
His calving ease and that of his
daughters has been excellent. 13 sons of S29 daughters were in our 2005 bull
sale.
32 Samson S29 daughters are still in the herd
‘Scrotal EBV is only part of the
fertility story.’
S29 Scrotal Size
38cm
EBV
-2.1
very low 1%
As a mature bull he sired over 100
calves a year in a commercial herd.
45CM
SCROTAL
+1.5 SS EBV
32CM SCROTAL
+1.5 SS EBV
At a bull sale with a QA catalogue I
observed that the largest scrotal bull of 45cm had a SS EBV of +1.5, in the
top 25% of the breed.
On checking to see what EBV the
smallest scrotal bull of 32 cm had I found an identical SS EBV of +1.5, again
in the top 25% of the breed.
For a two-year old bull 32cm would
not have passed a breeding soundness examination, yet the potential bull
buyers were told that as EBVs are more reliable than raw data this bull, with
a +1.5 SS EBV, was in the top 25% of the breed in spite of failing a breeding
soundness examination!
Maternal Traits
*Milk
OK within herd but question ability to adjust to seasonal changes.
*Mature Cow
Wt All over the place in our
herd. Frame score a far more reliable indicator of maturity pattern.
New Trend 315 has a MWt EBV of +41, His daughters in our herd have MWt EBV of
+54 and are average frame score 7.7 and average weight
GT Max has a MWt EBV of +142. His daughters in our herd are +99 and are
average 7.6 frame score and average weight
Growth Traits
*200
Day
All you need is a set of scales.
*400
Day
Easy to measure and should be accurate.
*600
Day
600 days is very young for final weight as most steers would not be
slaughtered before 700 to 800 days of age.
In 1980 when in the UK I saw the damage of over what emphasis did on a final
weight selection at 500 days to British breeds, This was the catalyst that
triggered the popularity of the European breeds.
We still find
within herd ratios more useful than EBVs.
Carcase Traits
*Carcase Weight Growth
traits tell you this.
*EMA
Not a true indicator of real muscle mass.
By adjusting to one age favors a
particular maturity pattern.
Extreme muscle creates fertility
problems.
Highlights dangers of single trait,
single location & single age selection pressures. Changing animal profile
– high flank, shallow hindquarter.
Is selecting a single
trait at a single location changing the real red meat mass?
Hoff Limited Edition
EMA +1.4
GAR Precision 1680 EMA +6.2
“Ever
wonder why your thickest, heaviest muscled bull didn’t scan your largest rib
eye?
Scanning
gives you the surface area (length X width), but not volume (length X width X
depth) of the rib eye that it measures.
Imagine
a lake. It is easy to measure the surface area (length X width), but if
you want to know how much water is in the lake you also have to measure how
deep it is!
The
moral of the story is that your thickest, heaviest muscled bull may actually
have had the biggest rib eye but you didn’t have the tools to measure all of
it.” Doug Hoff.
Carcase Traits cont.
*Fat
Being used for the wrong reasons. Carcasses do not want excess fat but many
breeders think positive fat cattle are easier doing.
Rump Fat EBV changes -
In
2001
0.0
highest 35%
In
2003
-0.9
down to the lowest 25%
In
2004
-1.4
down to the lowest 10%
In
2005
-0.9
back up to the lowest 25%
A participant in Round 1 of the Trangie Progeny Test he
was 0.0 for Rump Fat in 2003.
In 2005, after his growth went up, his Rump Fat EBV was
up to–1.4. Yet of the steer progeny
of the 13 Trangie Progeny Test bulls slaughtered, those
sired by Ultimate had the second
highest actual rump fat measurement. I can only assume
that his fat went down on the
assumption that high growth bulls are leaner.
Then after pointing out this to the Breed Development
Manager his EBV went back up to –0.9.
Confused? We
are!!!
*RBY%
This is the most under used and under valued trait.
WEIGHT + YIELD = PROFIT
*IMF%
The most over used trait. Its accuracy is difficult to verify in our herd.
Nutrition is the key to marbling. Angus cattle traditionally marble. Should
we be sacrificing so much for extreme IMF%
Isn’t raw data more meaningful in single management groups?
Why not breed Wagyu if you want extreme marbling cattle rather than destroy
the Angus breed?
*NFI
Based on target carcase weight or desired fat cover (finish)?
=
Two different outcomes favoring different
breeds & types?
Trangie Progeny Test
Raff Ultimate U27 – NFI
5th/13 at Tullimba - 10th/13 at Rutherglen
Based on target carcase weight on feed from
weaning what would the result have
been?
Format used
disadvantaged high growth Angus cattle.
On feed
earlier – reach target weight younger
=
more
profitable?
Two
extremes in maturity pattern of Trangie steers
I question the accuracy of weights and measurements being submitted. For
example how many birth weights are actual weights and not estimates or
guesses?
I question the ability of Breedplan to make accurate seasonal and
environmental adjustments. Our sale of the Forres herd into a different
environment in 1990 and the repurchase of some of those genetics in 2004
support my view.
In Rockhampton I heard of a Brahman bull located on a property in central
Queensland in good brigalow country and tick free that had a growth EBV of
+45 and in the top 1% of the breed after having his progeny analysed. That
same bull was sold into a coastal, ticky area where he or his progeny could
not handle the environment - his growth EBVs dropped to +5 in that herd.
Breedplan then gave him a growth EBV of +20!
Really that bull should have three growth EBVs – one for a temperate
environment, one for a coastal environment and another to keep the scientists
happy that means nothing!
When I began breeding Angus, temperament was a big issue in the breed.
Breeders acknowledged this and selected to improve this trait and up to ten
years ago temperament was no longer an issue in the breed – this bad trait
was virtually eliminated by selection and without EBV’s. The same can be said
about structure and fertility.
Only in this last decade have temperament, structure and fertility
re-emerged as an issue in the breed. Why? Because of the over emphasis
of EBV’s and single trait selection. We do not need more EBV’s to rectify
these emerging problems – EBV’s created them. We must look at the cause not
the problem.
A visit to an AI station earlier this year reminded me of my first
judging experience as a teenager. Before judging a spoke to a ‘wise old man
of the beef industry’ asking how to go about my job? “Simple” he replied,
“There are three basic functions of a bull and if he fails any one he should
not be a bull – a bull must be able to eat, walk and r…! (serve cows)”
At the AI center I saw a very high profile Australian bred Angus bull –
he was gone in the stifle and had a back foot as long as a water ski. He
could not mount a teaser for collection and could hardly walk so he failed
2/3 of the basics, he could not walk and he could not serve cows. Yet this
bull is still being marketed.
Checking on the Angus WEB he has over 1000 progeny recorded and rates a
near perfect feet and leg structural score!
His only attraction are an outstanding set of EBVs and $Index Values.
I ask you – is this what EBVs and Breedplan are all about?
Some of you would have seen an amateur video of USA AI bulls with footage
of one of the most widely used bulls in Australia – his front feet blown out.
In the 2004 semen catalogue that same bull rated 8/9 foot score!
There are many more stories of bulls with major structural, temperament
and other defects being marketed on EBVs.
Is it a coincidence that many ‘elite performance sires’ die a mysterious
death at a young age?
Isn’t it time we started questioning the integrity of some of our Angus
breeders and semen marketers?
Maybe an EBV for INTEGRITY would be useful, one for bull breeders and one
for semen sellers.
So many people say what a wonderful job AI has done for the beef industry
and the potential it has to multiply the superior genetics of the breed. I
would suggest to you that while we have breeders, AI companies and Angus
Australia vigorously promoting the importance of the use of EBVs as a
selection tool, the serious problems beginning to emerge in our great breed
will only get worse.
It is the over use and abuse of EBVs that have created these problem
The Elite Sire Progeny Test trial at Trangie provided a
perfect opportunity to verify the accuracy of EBVs. To do this it was
essential that the trial be open and transparent and that all raw data be
released for all to see the correlation between EBVs and raw data. The
refusal of the committee to do this is nothing more than a cowardly decision
to cover up a system that they know cannot withstand open and transparent
scrutiny. Secrecy creates suspicion!
I, like so many others, was excited about
the potential of the Elite Sire Progeny Test
Program when it was launched. However it
wasn’t long before this excitement turned
to frustration and disappointment when the
final method and reporting were disclosed.
“No raw data on the trial results would be
released”
In a phone
conversation with Carel Teseling as to the reason why?
“Because
the only people qualified to analyse raw data are scientists and academics”
Bull breeders are
apparently not qualified to analyse raw data on their own
bulls – what an
insult to the intelligence of all Angus bull breeders
Eventually
the committee agreed to release the averages for the sires in a configuration
of small groups. Little individual animal data has been released nor
has actual calving ease of the sires or their daughters. We are still waiting
for structural data.
“Individual figures will not be used in isolation for
publicity or promotional use.”
Who is the
committee to say what data from our bulls we can use?
“Any reference to raw data on the traits
reported by EBVs will not infer that raw data is more important than EBV’s.”
Who
do they think they are to make judgment as to what form of performance data
is more important? I would suggest the bull breeder and owner are quite able
of, and entitled to, use whatever information they feel is appropriate.
After
indicating my interest in participation I made a couple of suggestions to the
committee Chairman.
(1) An aged proven sire (such as MO32,
315 or Scotch Cap) should be used as a ‘bench mark’ sire.
(2) Bulls with a diverse range of
genetics should be selected for the trial.
(3) Less emphasis should be placed on
EBVs allowing breeders to nominate bulls of their choice.
(4) In the interests of all concerned
all raw data should be released.
All my
suggestions were ignored.
I was
reluctant to sign the draft contract, but after speaking with Bob Dent who
indicated a degree of urgency to get the project underway, I agreed, on the
understanding that further discussion could continue regarding my concerns.
I also hand
wrote a note indicating that I did not agree with the clause stating that ‘no
raw data would be released’ on the contract.
COPY OF CONTRACT PAG
This was
never acknowledged nor was any further discussions held to resolve my
concerns.
In April
2003 Andrew and I traveled 800 kilometers to the first Trangie field day to
inspect the first round weaners only to find that no birth weights, no
calving ease details of sires and no weaning weights of sire groups were
disclosed. In fact most of the day was spent on drought feeding and other
unrelated issues. We were pretty irate to say the least.
We
expressed our disappointment to Bob Dent, committee chair, who suggested we
send a written submission to the committee. This was the beginning of a long
and frustrating campaign that has achieved little.
After
spending $6,000 in nominating a bull and donating the semen, I can only say
it has been a total waste of money for us as well as many others. As a steak
holder in the trial we have been denied access to information on our bulls
performance.
Angus
Australia should be ashamed of the failure of this trial to deliver an
outcome that ‘kicked goals’. Your Board has squandered a lot of our money on
a trial that promised so much yet delivered so little.
TRANGIE PROGENY TEST.
Ultimate U27
CE Dir CE Dts GL BWt
200 400 600 MWt Milk
SS DC CWt EMA
Rib Rump RBY% IMF%
-5.0
-3.3
-1.3 +7.7
+53 +95 +130
+141 +15 +2.9
-0.1 +71
+2.7 -0.8
-0.9
+1.2 +0.3 .
-5%
-1%
-5%
-25%
.
What we’d still like to
know about UltimateU27?
Birth Weight Ultimate
had one of the highest birth weigh EBVs of all sires.
How
many of his calves were dead at birth or difficult births?
Calving Ease DIR Ultimate
had one of the worst calving ease direct EBV.
Was
this reflected in the birth of his progeny?
Calving Ease DTS Ultimate
had one of the worst Calving Ease DTS EBV.
What
number of his daughters experienced calving difficulty?
Fat
Ultimate had one of the leanest fat EBV.
We now know that his carcasses had the
second highest actual fat measurements.
I would suggest that the Young Sire Program
is heading the same way.
Our experience with this program was the same. We had a
number of young bulls short-listed, selected on EBVs of course. Andrew
responded by saying he considered only two out of seven were suitable and
questioned the selection process and also expressed the hope that those
selected would be of a diverse range of genetics.
He also advised that due to our bad experience with the
Trangie trial we had no interest in being part of this program.
The final selection had seven with 036 genetics.
Andrew again expressed concern that the gene pool was too limited. The
response was typical – technical and unrelated to the issues raised that
included a screed on inbreeding from Bob Guest
What they were doing was right and that we did not know
what we were talking about.
Why have they changed the selection process for the
next round?
MY QUESTIONS ABOUT EBV’s?
1.
Are the published accuracies too high?
“You can expect that EBVs for 1/3 of the bulls
will in fact be higher than first estimated. Of the other bulls, EBVs
will remain steady for 1/3 and decrease for the other 1/3.” Breed Development
Manager.
This would indicate
to me that a young unproven bull should have accuracy no higher than 33%.
2.
Is there too much emphasis on pedigree?
3.
Is there too little emphasis on raw data?
Too much contradiction in many traits measured in our herd.
Trangie progeny test code of practice:-
“Any
reference to raw data on the traits reported by EBVs will not infer that raw
data is more important than EBV’s.”
What a dangerous
and dictatorial statement.
In our opinion and
that of the majority of our clients raw data is just as important as EBVs. In
fact we find it to be a far more reliable indicator of an animals potential
than EBVs.
When purchasing
sires we always insist on having access to all raw data. It is disturbing
when a breeder is reluctant to provide such data.
4.
Should animals without raw data on a trait have EBV’s for that trait?
The assumption that an animal gets 50% of its genes from its sire and 50%
from its dam might be right but which 50%?
Only a 33% chance
of being right!
5.
How accurate is the raw data submitted?
I know of many breeders who estimate or guess calf birth weights.
6.
Why are older animals EBV’s disadvantaged so much?
A common question asked by breeders and one that is evident in our herd.
7.
Why are ‘home bred’ animals EBV’s disadvantaged so much?
We have had homebred sires with raw data comparable to those by ‘high
accuracy bulls’ yet have lower EBVs.
8.
Are the EBV’s for progeny of ‘high accuracy’ sires really that good?
The progeny of BT Ultravox in this years bull sale indicated this to be
so.
9.
How accurately can seasonal and environmental fluctuations be recognised?
Seasonal change does change the performance of an animal even within strict
management groups.
A bull that can
perform in one environment will not always perform in a different
environment.
10.
Should growth have any influence on birth weight EBV’s?
The Americans don’t think so!
We have used breed average actual birth weight EBV bulls that have EBVs in
the high 1% of the breed. Their progeny have not been extreme and we have not
had calving problem
11.
Are the genetic gains as indicated by EBV’s that high?
Our
weaning weights or milk or EMA or birth weight have not increased as much as
Breedplan says.
12.
What evidence is there that the genetic gains claimed are in fact happening?
The two major feedlots in Queensland have no evidence of any increase in
marbling in Angus cattle they have fed and slaughtered.
I would suggest that nutrition and feeding practices would have had a greater
influence on the compliance rate marbling breeds of cattle.
13.
What EBV’s really do indicate the genetic potential of a trait?
Only those of animals with large groups of progeny analysed from a range
of different environments have any chance.
14.
Are too many EBV’s and $Index Values based on ‘assumptions’ rather than
‘fact’?
Assumptions are dangerous as they create too many variables. An
assumption for one market or environment or management practice will always
not be the same.
15.
Are there too many EBV’s?
There should not be an EBV for a trait that cannot guarantee some degree
of accuracy and confidence in its user.
16.
Why are the formulas used to arrive at EBV’s not available for scrutiny?
Secrecy creates suspicion.
17.
Why don’t bull breeders have a greater
involvement with the structure of Breedplan?
“New developments and
research concerning BLUP methodology is
constantly
under review and scrutiny by the international scientific
community.”
Breed Development Officer.
How often are bull
breeders consulted or involved?
Isn’t the user of
the information entitled to say what they want?
18.
Has Angus Australia ‘over sold’ Breedplan?
9 out of 10 for a marketing exercise.
2 out of 10 for breeding better cattle.
19.
Have Angus breeders ‘over used’ Breedplan?
Market pressures have forced many to use a system they do not believe in.
20.
Have entrepreneurs ‘abused’ Breedplan?
Breedplan has made breeding and marketing bulls look easy to investor
WHAT
DO WE DO ABOUT IT?
1.
Give
Breedplan a good dose of Dectomax or Genises to get rid of all its
parasites!!!
2.
Angus
Australia to back off promoting EBV’s.
3.
ABRI
be advised that Breedplan, in its current format, no longer has the
confidence of many Angus breeders.
4.
The
Angus Group Breedplan contract to be reviewed.
5.
Angus
Australia to initiate an independent review of
Breedplan.
6.
The
focus of the review to be on the users of Breedplan.
7.
All
data collected from the Trangie Progeny Test to be released.
8.
All formulas used to arrive at EBV’s to be disclosed.
Angus Australia has an obligation to its members to
stand up and take control of its performance recording system. It has an
obligation to its members to acknowledge that the current system is flawed
and in need of overhaul. It has an obligation to evolve a system that has the
users confidence – only the Angus breeders of Australia in consultation with
the feeder and processing industry should determine the make up of that
performance system.
It is Angus breeders that pay for Breedplan.
It is Angus breeders that breed the cattle, provide the
data and use the information.
It is Angus breeders whose livelihood is influenced by
the accuracy and relevance of the information provided by EBV’s
It is the Angus breeder who has to defend the system
and whose credibility is at stake by providing EBV’s to bull buyers.
It is time the Angus breeders took control of Breedplan
and demand a system that they have confidence in, a system that they can
confidently defend as accurate and a system that has the support of the vast
majority of Angus breeders.
Breedplan
must become a system that all breeders want to embrace, not one that they
feel obliged to adopt.
In Queensland we
have a health system in crises.
It is in crises because it has been
run by a bunch of bureaucrats who know nothing about health.
It has become endemic because those
administrators failed to acknowledge that the system was wrong and they
failed to listen to the users of the system, the nurses and patients.
In the Beef Industry we have a
genetic evaluation system in crises.
It is in crises because it is being
run by a bunch of academics that know nothing about breeding cattle.
It is becoming endemic because those
administrators are failing to acknowledge that the system is wrong and they
are failing to listen to the users of the system, the breeders of cattle.