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Offering 18 Sire Assured HBR Bulls Tuesday 11th March 2025 at 2pm 4342 Meander Valley Rd, Deloraine, Tasmania
bottom right, Lot 7 TGU22T38 sold for a top of $6,500, purchased by W Donovan.
Pleasant Vale Farm would like to welcome you to our fourth annual on farm Autumn Bull Sale! Where we will be offering 18 HBR Bulls! meet. Exceptionally dry conditions & poor yielding harvests locally were major contributors. Personally I would like to reiterate how thankful we were for both our long term clients & to new clientele who had confidence in our breeding program. We were still very humbled to fully clear our 2024 offering within a week from sale conclusion. I would like to thank Wayne Donovan for his ongoing support & purchase of our top Lot No. 7 T38 for $6,500. T38 was a very well structured New Ground son boasting a fat positive data set. I would like to thank both our winning bidders, under bidders & those who viewed what was on offer in 2024! We are really excited with how this year’s sale team is shaping up & cannot wait to share this offering with you. We have another exciting line up from key sire lines such as Knowla So Right, Mandayen Reebok, Murdeduke Quarterback, Ellingson Three Rivers & Sterling Pacific. I have great confidence that there is a bull to satisfy everyone’s breeding objectives. Knowla So Right was an exciting addition to our breeding program and was solely used over some selected females from the heart of our herd. His structure, length of body, docility & fat positive data set made the decision unquestionable. Mandayen Reebok was another structure positive selection offering excellent calving ease with little sacrifice for growth. He was exclusively used over our yearling females & it’s great seeing these new genetics compound. Murdeduke Quarterback has been a key sire for adding frame, carcass & plenty of scrotal. Two of his progeny listed in this sale measuring in at whopping 42CM & 46CM. This is our first drop off Ellingson Three Rivers Son’s & they are destined to impress. A great cow joining proposition offering extreme growth & plenty of muscle; progeny from these bulls will hit
the ground running. Lastly is Sterling Pacific an absolute powerhouse, producing big bold high yielding progeny; another bull who will add phenomenal growth and depth to his offspring.
I would like to make mention that our operation doesn’t solely focus on genotype or phenotype. I have a strong belief that there has to be focus on both. EBV accuracies are vastly improving; the more data from each generation of progeny recorded means more precision for these breeding values. From a phenotypical point of view these bulls have to present well with observable characteristics just as important as their figure set. The 18 bulls offered in this year’s sale have been selected on both. All of the bulls have been meticulously handled over their lifetime with any presentation of temperament issues being removed from our offering. Our two major fundamental traits we select on here at Pleasant Vale are structure & docility.
In early spring it looked as though another difficult season was on the horizon but we were very fortunate to receive some substantial rains at key times. It’s amazing the boost in morale & market positivity that this brought with it. Here at Pleasant Vale we had a record hay & silage harvest while sustaining our largest herd. Leading into autumn, long range forecasts are looking extremely positive with above average rainfalls. I think we will all welcome an autumn break this year! With market prosperity & positive seasonal outlooks it truly is an exciting time to be in the beef industry.
On a final note I would like to thank our existing clients for your ongoing support & welcome any prospective clients, we would love to have you in attendance at our fourth on farm sale!
Kind Regards, Cody
Best
Our Autumn Bull Sale will be held on the 11th of March 2025 & located on property at 4342 Meander Valley Road, Deloraine. All bulls will be penned for inspection at 12:00PM & sale will commence at 2:00PM. Buying format at the sale will be Online Helmsman interfaced with auctions plus, we think this gives everyone the best opportunity to make their purchase.
We do suggest buyers bring an electronic device for access to the Auctions Plus platform on the day for bidding however bidding can still be undertaken through the agent. The sale will run for 30 minutes then a countdown timer will run until the conclusion of the sale.
3% Commission will be offered to participating agents introducing buyers to the sale. Please notify Thomas Febey0437 538 278, Elders Livestock prior to sale.
Elders Livestock Tasmania will be conducting the sale. Any queries in relation to the sale please contact Thomas Febey –0437 538 278.
All animals are sold exclusive of GST.
All Bulls have received the following treatments
• Ultravac 7 in 1 – 30 October 2023, Booster 12th December 2023, Annual Booster 3rd February 2025
• Multimin Evolution – 27th January 2024, 18th January 2025
• Dectomax Injectable – 2nd May 2024
• Cydectin Injectable – 20th September 2024
• Zoetis Vibrovax – 18th January 2025, Booster 15th February 2025
• Zoetis Pestigard – 18th January 2025, Booster 15th February 2025
All sale bulls have been tested for BVDV (Pestivirus) & returned negative results. They have also been vet checked & semen tested.
Transport costs will be covered by the vendor for all bulls sold within Tasmania. This is provided bulls are delivered within two weeks of sale date. If insurance is required this will be the buyer’s responsibility.
Although all bulls have displayed great temperament & are regularly handled, care must be taken. However a change in environment & other pressures can cause a bull to become agitated.
We ask for no children to enter pens on sale day.
The vendor will transfer ownership of the bull to the purchaser on the Angus Australia database. The following information needs to be supplied on the buyers slip (page 8); Name of the owner, address and PIC number.
Animal details included in this catalogue, including but not limited to pedigree, DNA information, Estimated Breeding Values (EBVs) and Index values, are based on information provided by the breeder or owner of the animal. Whilst all reasonable care has been taken to ensure that the information provided in this catalogue was correct at the time of publication, Angus Australia will assume no responsibility for the accuracy or completeness of the information, nor for the outcome (including consequential loss) of any action taken based on this information.
The animals listed within this catalogue including its pedigree, are displaying a Parent Verification Suffix which indicates the DNA parent verification status that has been conducted on the animal. The Parent Verification Suffixes that will appear at the end of each animal’s name.
PV: both parents have been verified by DNA.
SV: the sire has been verified by DNA.
DV: the dam has been verified by DNA.
#: DNA verification has not been conducted.
E: DNA verification has indentified that the sire and/or dam may possibly be incorrect, but this cannot be confirmed conclusively.
CatalogueDisclaimer:
Whilst all due care and attention has been paid to accuracy in the compilation, neither the vendor, the selling agents or representatives thereof assume responsibility for the correctness, use or interpretation of the information on anmals included in this catalogue.
2024 saw some brilliant personal development opportunities arise. I was recently fortunate enough to attend the 2024 Genangus Future Leaders Program. This was held in Christchurch, New Zealand which made a great excuse for a trip away. It was a phenomenal experience that truly did exceed my expectations. I’m very thankful to the previous Alumni & founding members who have created this program. Their investment and passion is all about longevity in our industry and making sure it’s here for the next generation to be a part of. Nancy Crawshaw coordinated this year’s program incorporating James Kerr’s book legacy which was very fitting. It was great understanding the direct correlation between a successful sporting team like the All Blacks and a prosperous business. Also a big thanks to the work Milly Nolan put in towards the facilitation of this well executed program & her expertise in behavioural analysis.
This year’s cohort involved 13 participants from both Australia & New Zealand. Needless to say a very diverse group when it came to age, experience, operation and climate. My true personal goal was to network and I have made some lifelong friendships after being involved in the program. I had not attended an event as such so have been lacking contacts in industry. It was great to meet our incoming President Sinclair Munro, CEO Scott Wright & Extension Manager Jake Phillips. I personally didn’t realize how much support we had, with so many modest & passionate people involved in the Angus breed society.
It was a very intense four days with a number of business critical topics discussed. These ranged from mindset, finances, insurances, marketing, market analysis, succession & genetics. We were truly blessed with a number of captivating speakers. Some personal highlights included Angus Street, James Knight and Sir Graham Henry. They all shared their personal stories of success and any hurdles they faced along the way. I really admired their humility and determination, feeling very privileged for this opportunity.
The 2024 GenAngus future leaders program could not have come at a more pivotal time in my career. I’m currently in a position where I’m wanting to further develop & grow our family stud Pleasant Vale Angus. This program has definitely given me insights into skills & tools required to be successful when expanding our enterprise. Unquestionably a once in a lifetime experience that I will happily advocate for future candidates.
A huge thank you to Angus Australia, Angus Youth Australia, Rabobank New Zealand & Achmea Australia. Its great seeing so much investment in our future.
Post program I was fortunate to travel around the South Island and visit a number of Angus Studs. These included Stern, Meadowslea, MT Possession & Kincardine. It was of great interest viewing their operations and looking at potential genetic acquisitions for the future.
The TransTasman Angus Cattle Evaluation is the genetic evaluation program adopted by Angus Australia for Angus and Angus influenced beef cattle. The TransTasman Angus Cattle Evaluation uses Best Linear Unbiased Prediction (BLUP) technology to produce Estimated Breeding Values (EBVs) of recorded cattle for a range of important production traits (e.g. weight, carcase, fertility).
The TransTasman Angus Cattle Evaluation is an international genetic evaluation and includes pedigree, performance and genomic information from the Angus Australia and Angus New Zealand databases, along with selected information from the American and Canadian Angus Associations.
The TransTasman Angus Cattle Evaluation utilises a range of genetic evaluation software, including the internationally recognised BLUPF90 family of programs, and BREEDPLAN® beef genetic evaluation analytical software, as developed by the Animal Genetics and Breeding Unit (AGBU), a joint institute of NSW Agriculture and the University of New England, and Meat and Livestock Australia Limited (MLA).
An animal’s breeding value can be defined as its genetic merit for each trait. While it is not possible to determine an animal’s true breeding value, it is possible to estimate it. These estimates of an animal’s true breeding value are called EBVs (Estimated Breeding Values).
EBVs are expressed as the difference between an individual animal’s genetics and a historical genetic level (i.e. group of animals) within the TACE genetic evaluation, and are reported in the units in which the measurements are taken.
TACE EBVs can be used to estimate the expected difference in the genetics of two animals, with the expected difference equating to half the difference in the EBVs of the animals, all other things being equal (e.g. they are joined to the same animal/s).
For example, a bull with a 200 Day Growth EBV of +60 would be expected to produce progeny that are, on average, 10 kg heavier at 200 days of age than a bull with a 200 Day Growth EBV of +40 kg (i.e. 20
kg difference between the sire’s EBVs, then halved as the sire only contributes half the genetics).
Or similarly, a bull with an IMF EBV of +3.0 would be expected to produce progeny with on average, 1% more intramuscular fat in a 400 kg carcase than a bull with a IMF EBV of +1.0 (i.e. 2% difference between the sire’s EBVs, then halved as the sire only contributes half the genetics).
EBVs can also be used to benchmark an animal’s genetics relative to the genetics of other Angus or Angus infused animals recorded with Angus Australia. To benchmark an animal’s genetics relative to other Angus animals, an animal’s EBV can be compared to the EBV reference tables, which provide:
• the breed average EBV
• the percentile bands table
The current breed average EBV is listed on the bottom of each page in this publication, while the current EBV reference tables are included at the end of these introductory notes.
For easy reference, the percentile band in which an animal’s EBV ranks is also published in association with the EBV.
An accuracy value is published with each EBV, and is usually displayed as a percentage value immediately below the EBV. The accuracy value provides an indication of the reliability of the EBV in estimating the animal’s genetics (or true breeding value), and is an indication of the amount of information that has been used in the calculation of the EBV.
EBVs with accuracy values below 50% should be considered as preliminary or of low accuracy, 50-74% as of medium accuracy, 75-90% of medium to high accuracy, and 90% or greater as high accuracy.
EBVs are calculated for a range of traits within TACE, covering calving ease, growth, fertility, maternal performance, carcase merit, feed efficiency and structural soundness. A description of each EBV included in this publication is provided on the following page.
CEDir %
Genetic differences in the ability of a sire’s calves to be born unassisted from 2 year old heifers.
CEDtrs %
GL days
BW kg
200 Day kg
400 Day kg
600 Day kg
MCH cm
MBC score
MCW kg
Milk kg
DtC days
SS cm
CWT kg
EMA cm2
Rib Fat mm
P8 Fat mm
RBY %
IMF %
NFI-F kg/day
Doc %
Claw Set
Foot
Leg
Genetic differences in the ability of a sire’s daughters to calve unassisted at 2 years of age.
Genetic differences between animals in the length of time from the date of conception to the birth of the calf.
Genetic differences between animals in calf weight at birth.
Genetic differences between animals in live weight at 200 days of age due to genetics for growth.
Genetic differences between animals in live weight at 400 days of age.
Genetic differences between animals in live weight at 600 days of age.
Genetic differences between animals in the height of mature females.
Genetic differences between animals in the body condition of mature females.
Genetic differences between animals in live weight of cows at 5 years of age.
Genetic differences between animals in live weight at 200 days of age due to the maternal contribution of its dam.
Genetic differences between animals in the time from the start of the joining period (i.e. when the female is introduced to a bull) until subsequent calving.
Genetic differences between animals in scrotal circumference at 400 days of age.
Genetic differences between animals in hot standard carcase weight at 750 days of age.
Genetic differences between animals in eye muscle area at the 12/13th rib site in a 400 kg carcase.
Genetic differences between animals in fat depth at the 12/13th rib site in a 400 kg carcase.
Genetic differences between animals in fat depth at the P8 rump site in a 400 kg carcase.
Genetic differences between animals in boned out saleable meat from a 400 kg carcase.
Genetic differences between animals in intramuscular fat (marbling) at the 12/13th rib site in a 400 kg carcase.
Genetic differences between animals in feed intake at a standard weight and rate of weight gain when animals are in a feedlot finishing phase.
Genetic differences between animals in temperament.
score Genetic differences in claw set structure (shape and evenness of claws).
Genetic differences in foot angle (strength of pastern, depth of heel).
Genetic differences in rear leg structure when viewed from the side (angle at front of the hock).
Higher EBVs indicate fewer calving difficulties in 2 year old heifers.
Higher EBVs indicate fewer calving difficulties in 2 year old heifers.
Lower EBVs indicate shorter gestation length.
Lower EBVs indicate lighter birth weight.
Higher EBVs indicate heavier live weight.
Higher EBVs indicate heavier live weight.
Higher EBVs indicate heavier live weight.
Higher EBVs indicate taller mature females.
Higher EBVs indicate more body condition of mature females.
Higher EBVs indicate heavier mature weight.
Higher EBVs indicate heavier live weight.
Lower EBVs indicate shorter time to calving.
Higher EBVs indicate larger scrotal circumference.
Higher EBVs indicate heavier carcase weight.
Higher EBVs indicate larger eye muscle area.
Higher EBVs indicate more fat.
Higher EBVs indicate more fat.
Higher EBVs indicate higher yield.
Higher EBVs indicate more intramuscular fat.
Lower EBVs indicate more feed efficiency.
Higher EBVs indicate better temperament.
Lower EBVs indicate less curl of the claw set.
Lower EBVs indicate more heel depth.
Lower EBVs indicate a less angular leg angle.
$A $
$A-L $
Genetic differences between animals in net profitability per cow joined in a typical commercial self replacing herd using Angus bulls. This selection index is not specific to a particular market end-point, but identifies animals that will improve overall net profitability in the majority of commercial, self replacing, grass and grain finishing beef production systems.
The $A-L index is similar to the $A index but is modelled on a production system where feed is surplus to requirements for the majority of the year, or the cost of supplying additional feed when animal feed requirements increase is low.
While the $A aims to maintain mature cow weight, the $A-L does not aim to limit the increase in mature cow weight as there is minimal cost incurred if the feed maintenance requirements of the female breeding herd increase as a result of selection decisions.
Higher selection indexes indicate greater profitability.
Higher selection indexes indicate greater profitability.
We are excited to share with you raw data on each of the 18 sale bulls. Scan data for P8 Fat, Rib Fat, EMA & IMF was conducted by Bovine Scanning Services on the 13th of January 2025. Weights are relative to when scanning was conducted. There will be a supplementary sheet included with more recent weights on sale day. Scrotal circumferences were conducted by Deep Creek Cattle Services on the 31st of January 2025. All birthweights are collected within 24 hours of calf being born.
Bulls from management group one stayed in their own contemporary group whereas bulls from management group 2 were successfully used in our 2024 mating program; different management practices will affect scanning results. Lot
DOB: 02/08/2023
Registration Status: HBR Mating Type: AI
February 2025 TransTasman Angus Cattle Evaluation
Notes: Very deserving in his position of Lot 1 we have U16, an impressive son of Ellingson’s Three Rivers. This bull was our highest scanning for EMA recording 100 square CM’s. A brilliant option who is well suited for any cow joining program chasing structure and growth. U16 is our heaviest bull on offer who posts in the Top 2 percent of the breed for Net Feed Intake; increased feed conversion efficiency equals increased profit. A bull who always presents well & would be complimentary of most breeding programs.
DOB: 28/08/2023
Sire: TGUR11 PLEASANT VALE MAKAHU R11SV Dam: TGUQ72 PLEASANT VALE DELTA Q72#
GLENOCH-JK MAKAHU M602SV PLEASANT VALE WHITWORTH M24SV PLEASANT VALE SPRINGSIDE P66# PLEASANT VALE
February 2025 TransTasman Angus Cattle Evaluation
Notes: In lot number two we have one of two R11 Makahu sons to be offered in this sale. A fat adding option who topped scanning for P8 & Rib Fat; 6mm & 5mm. This guy has plenty of length & is very well structured. A very well proportioned option who is sleek in the coat and presents with great doing ability.
DOB: 05/08/2023 Registration Status: HBR Mating Type: AI
Sire: BLA21S48
February 2025 TransTasman Angus Cattle Evaluation
Notes: Here we have a very exciting son to none other than Knowla So Right, one of two to be offered in this sale. A very eye appealing bull who displays great length, he will produce some big framed high yielding progeny. If your breeding objectives includes adding IMF, Rib & Rump Fat this bull will definitely be one of interest. Our confidence in this young sire saw him used over returning T Heifers from our 2024 AI program.
DOB: 07/08/2023 Registration Status: HBR Mating Type: AI Genetic Status: AMFU,CAFU,DDF,NHFU
Sire: USA19444025 STERLING PACIFIC 904PV Dam: TGUQ60
February 2025 TransTasman Angus Cattle Evaluation
Traits Observed: GL,BWT,Genomics
Notes: He may be lacking some length but he well & truly makes up for this with depth of body, talk about thick! A Sterling Pacific son who is backed by an impressive data set. If you’re after EMA this guy has it covered recording +11.7 which is in the top 7 percent for the breed. This bull was used in our joining program; he will produce some easy doing, high yielding progeny.
Notes: U59 is our only Cluden Newry R338 Son to be offered in this sale. A very consistent package & probably the best balanced bull to be offered. If you want data and phenotype he’s your man. Our best days to calving option which makes him great for anyone with a self-replacing herd wanting to breed females who will come into oestrous early. An easy to handle young sire with a docility score of +45; top two percent for the breed! Confidence in this young sire saw him used over our yearling heifers this year. February 2025 TransTasman Angus
February 2025 TransTasman Angus Cattle Evaluation
Notes: Here is our second So Right son to be offered. He definitely displays typical length & softness inherited from his father! This maternal joining has resulted in a much more moderated frame compared to his brother in Lot #4. An exciting proposition who always presents himself well in the paddock. This bull scanned very consistently sharing the second highest IMF score of 6.3%.
DOB: 04/08/2023 Registration Status: HBR Mating Type: AI Genetic Status: AMF,CAFU,DDF,NHFU
Sire: USA19203618 ELLINGSON THREE RIVERS 8062PV Dam: TGUQ75 PLEASANT VALE SUNRAY Q75SV ELLINGSON HOMESTEAD
February 2025 TransTasman Angus Cattle Evaluation
Traits Observed: GL,BWT,Genomics
Notes: U21 is a well put together Three Rivers son. He is possibly our best heifer joining bull to be offered, allowing plenty of peace of mind. From a raw data perspective his actual birthweight recorded is 34KG’s. He will sire some very easy doing, feed efficient calves that will excel in a grass-fed production system. A consistent bull across the board at scanning.
DOB:
Notes: A crazy good growth option! For his 200, 400 & 600 day growth he ranks in the top five percent for the breed. If you’re operating a self-replacing herd & want to breed some big, bold easy doing females U39 will do this with ease. He has an impressive Mature Cow Weight of +149 & is in the top 1 percent of the breed for Mature Body Condition. I would like to make note on his docility, this guy is as quiet as a lamb. Being complimentary of our breeding objectives, U39 was used in our 2024 joining.
Sire: USA19444025
February 2025 TransTasman Angus Cattle Evaluation
Notes: Sharing very similar attributes to our previous lot, here is another Sterling Pacific son. The data doesn’t lie when it comes to this guy, structure with genotype & structure with phenotype. Look at how he stands & the presentation of his claw set it’s a true reflection of his EBVs. U41 will produce some very consistent calves that will definitely pack weight at weaning.
DOB: 05/08/2023 Registration Status: HBR Mating Type: AI
TGU23U26
Genetic Status: AMFU,CAFU,DDF,NHFU
Sire: CSWQ011 MURDEDUKE QUARTERBACK Q011PV Dam: TGUP72 PLEASANT VALE MAREEBA P72# LAWSONS MOMENTOUS M518PV PLEASANT VALE DURHAM J27SV MURDEDUKE BARUNAH N026PV
February 2025 TransTasman Angus Cattle Evaluation
Traits Observed: GL,BWT,Genomics
Notes: Here we have one of two Murdeduke Quarterback Son’s to be offered this year. He’s one of our biggest framed bulls displaying a later maturity pattern. At maturity this bull will be carrying a lot of carcass, an excellent option for anyone supplying the export market. He tracks very well due to his structural correctness. U26 is our best choice for IMF with an impressive figure of +4.8 coming in at the 7th percentile. This bull was complimentary of our breeding objectives which saw his involvement in our 2024 joining.
February 2025 TransTasman Angus Cattle Evaluation
Notes: There is no arguing that U25 is just like his brother U26. Sharing very similar phenotypical characteristics he’s another big framed, late maturing Quarterback son. There’s no doubting his breeding ability with a Scrotal Circumference like that, measuring in at a whopping 46CM! There is a direct correlation between Scrotal Circumference & Fertility; there’s no excuses for this guy.
Sire: USA19203618 ELLINGSON THREE RIVERS 8062PV Dam: TGUP27 PLEASANT VALE SUNRAY P27#
ELLINGSON HOMESTEAD 6030# PLEASANT VALE BARTEL J30SV EA EMBLYNETTE 6279PV
February 2025 TransTasman Angus Cattle Evaluation
Notes: Here we have a bomb proof bull, he’s in the top two percent for docility which is truly represented by him when handled. A typical Three Rivers Son sporting growth & structure.This young sire was used in our 2024 breeding program.
Sire: TGU21S40 PLEASANT VALE S40SV Dam: TGU21S56 PLEASANT VALE S56#
LANDFALL KEYSTONE K132PV CHILTERN PARK MOE M6PV PLEASANT VALE DARWIN P10# PLEASANT VALE DELUXE Q50#
February 2025 TransTasman Angus Cattle Evaluation
Notes: Our youngest bull to be offered in this sale & the only to be sired by S40, a Landfall Keystone son. He is also a first calf from a heifer joining. U115 will be sure to create some high yielding progeny at maturity. He is well setup through the feet and displays plenty of length of body.
Notes: What a
February 2025 TransTasman Angus Cattle Evaluation
Notes: Up next is U34 one of two Mandayen Reebok sons on offer. Offering great assurance in a heifer joining program. Reebok was solely used for his calving ease, birthweight & structure traits. A very well proportioned bull displaying a lot of softness and muscle. At scanning he posted the highest IMF reading of 6.4% & equal highest score of P8 Fat recording 6mm.
DOB: 24/08/2023 Registration Status: HBR Mating Type: Natural Genetic Status: AMFU,CAF,DDF,NHFU
Sire: TGUR11 PLEASANT VALE MAKAHU
February 2025 TransTasman Angus Cattle Evaluation
Traits Observed: BWT,Genomics
Notes: U65 is the second R11 Makahu Son on offer who really is backed with some maternal longevity. Belonging to 13 year old cow there’s no arguing that his daughters will stand the test of time. Another great heifer option doing to his impeccable calving ease data set. A well suited sire for returning females on an AI program due to his short gestation length of -8.2, proving a great tool to minimise your calving window.
This is information for bull buyers about the recessive genetic conditions, Arthrogryposis Multiplex (AM), Hydrocephalus (NH), Contractural Arachnodactyly (CA) and Developmental Duplications (DD).
All animals, including humans, carry single copies (alleles) of undesirable or “broken” genes. In single copy form, these undesirable alleles usually cause no harm to the individual.
But when animals carry 2 copies of certain undesirable or “broken” alleles it often results in bad consequences. Advances in genomics have facilitated the development of accurate diagnostic tests to enable the identification and management of numerous undesirable or “broken” genes.
Angus Australia is proactive in providing its members and their clients with relevant tools and information to assist them in the management of known undesirable genes and our members are leading the industry in their use of this technology.
AM, NH, CA and DD are all recessive conditions caused by “broken” alleles within the DNA of individual animals. When a calf inherits 2 copies of the AM or NH alleles their development is so adversely affected that they will be stillborn.
In other cases, such as CA and DD, calves carrying 2 copies of the broken allele may reach full-term. In such cases the animal may either appear relatively normal, or show physical symptoms that affect their health and/or performance.
Carriers, will on average, pass the undesirable allele to a random half (50 %) of their progeny.
When a carrier bull and carrier cow is mated, there is a 25% chance that the resultant calf will inherit two normal alleles, a 50% chance that the mating will result in a carrier (i.e. with just 1 copy of the undesirable allele, and a 25% chance that the calf will inherit two copies of the undesirable gene.
If animals tested free of the undesirable gene are mated to carrier animals the condition will not be expressed at all. All calves will appear normal, but approximately half (50%) could be expected to be carriers.
DNA-based diagnostic tests have been developed which
can be used to determine whether an individual animal is either a carrier or free of the alleles resulting in AM, NH, CA or DD.
Angus Australia uses advanced software to calculate the probability of (untested) animals to being carriers of AM, NH, CA or DD. The software uses the test results of any relatives in the calculations and the probabilities may change as new results for additional animals become available.
The genetic status of animals is being reported using five categories:
AMF
AMFU
Tested AM free
Based on Pedigree AM freeAnimal has not been tested
AM_% _% probability the animal is an AM carrier
AMC
AMA
Tested AM-Carrier
AM-Affected
For NH, CA and DD, simply replace AM in the above table with NH, CA or DD.
Registration certificates and the Angus Australia webdatabase display these codes. This information is displayed on the animal details page and can be accessed by conducting an “Database Search” from the Angus Australia website or looking up individual animals listed in a sale catalogue.
Your decision on the importance of the genetic condition status of replacement bulls should depend on the genetics of your cow herd (which bulls you previously used) and whether some female progeny will be retained or sold as breeders.
Most Angus breeders are proactive and transparent in managing known genetic conditions, endeavouring to provide the best information available. The greatest risk to the commercial sector from undesirable genetic recessive conditions comes from unregistered bulls with unknown genetic background. The genetic condition testing that Angus Australia seedstock producers are investing in provides buyers of registered Angus bulls with unmatched quality assurance.
For further information contact Angus Australia (02) 6773 4600.
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