Videos will be available with final weights at www.myanga.com.au
24th Spring Bull Sale
Thursday 7th August 2025, 11 AM
On Property, 480 Chapmans Lane, Chatsbury NSW
Welcome to our 24th Spring Bull Sale
This catalogue aims to provide a comprehensive description of the bulls on offer this year. This year’s bull line up :
• Great temperament
• Strength of structure
• Features sons of HCPA Veracious, Ardrossan Southern Cross, LT Revere, Hoffman Thedford, BIGK/WSC Iron Horse.
• Free delivery within 200km and to major centres in NSW
Open Day Saturday 2nd August 2025.
We are keen to see you at our open day and are happy to discuss any aspect of the bulls catalogued.
Bulls available for inspection from 9 am till 3 pm or by appointment.
Welcome to the 24th Myanga Spring Bull Sale
Welcome to the 24th Myanga Angus Spring Bull sale
Our foundation is built on fertility, structure and docility.
We are very pleased to present our 2025 bull draft for your consideration.
The 2024/5 growing season in the southern tablelands has been ideal for creating a stable feed base for our bulls. As part of our commitment to sustainability our bulls have only been grass fed. We feel this is very important to ensure our bulls grow out naturally and are ready to perform once they arrive at your farm.
We run two tight calving periods early March and late August, calving down 200 cows in August and 300 cows in September.
Overall our breeding program aims to produce bulls that are structurally sound, quiet and provide strong early growth characteristics. We continue to step up our ET program seeking to accelerate the genetic gain in our herd based upon the outstanding cows in our herd.
Our bulls and females are run under commercial conditions to highlight their ability to perform and their soundless. We are continually working on improving the fertility of the herd by running tight six week joining cycles. We retain a large portion of our heifers reflecting faith in our program to produce highly fertile, good temperament and moderately framed cows.
This year’s bull lineup represents a continued progression of the Myanga program, delivering robust structure, quiet temperament and strong early growth traits. These objectives drive both our sire selection and the selection process for the lineup on offer this year.
The sires featured in the 2025 draft include; HCPA Veracious (USA19699322) – a bull we have used for three seasons, and we have been very impressed with his calves. We chose Veracious due to his structural soundness and powerful 200 and 400 day growth.
Ardrossan Southern Cross. The top priced bull out of the Ardrossan 2023 sale, Southern Cross continues to display excellent balance both phenotypically and from a genomic perspective. A quiet bull with positive fats. In fact his EMA, Rib fat , Rump Fat and IMF are all in the top15% of the breed.
BigK / WSC Iron Horse 025f. Out of the EXAR program, Iron Horse is an eye catching, calving ease bull with explosive growth and carcass weight in the top 7 % of the breed.
LT Revered. This LT son was chosen based upon his structure, docility and calving ease. These traits have certainly come through during calving and in his progeny, which is very pleasing.
This year’s lineup is exciting, offering out cross genetics and showing plenty of growth, strength of structure and great temperament.
“Our focus on fertility, structure and docility remains absolute”
Myanga Quality
All Myanga Bulls in this catalogue have been:
• Tagged at Birth
• SNP tested for production traits using Angus GS.
• Sire verified through DNA testing.
• Independently assessed for structure.
• Vet inspected and have passed a thorough reproductive examination involving testicular palpation, penile inspection, crush side semen motility and sperm morphology assessment.
• Tested to be PI ( Bovine Pestivirus carrier state ) free.
• Vaccinated with 7 in 1, Vibriosis vaccinated , Pestigard vaccinated and drenched with Nitromec.
Sale Information
INSPECTIONS
Welcome any time by appointment or from 9.00am on sale day.
INSURANCE
There is no vendor insurance on sale bulls. It will be the responsibility of the purchaser to insure their bulls.
REBATE
Rebate of 2% on sale bulls will be offered to outside agents introducing clients in writing prior to the sale or in attendance on day of sale.
TRANSPORT
Delivery will be arranged as cheaply as possible, with FREE delivery of bulls for the first 200km and to major NSW centres. Bulls remaining at Myanga pending delivery are at the purchaser’s risk.
INTENDING BUYERS
A buyer’s number system will be in operation. Therefore, all prospective purchasers will be required to register on or prior to sale day at the agent’s office prior to commencement of the sale.
INJURY TO PERSON OR PROPERTY
All persons who attend the sale do so at their own risk, and vendors therefore assume no liability. All persons entering bull pen’s do so at their own risk.
Please NO children allowed in bull pen’s at the Myanga sale complex.
PRIVACY INFORMATION
In order for Angus Australia to process the transfer of a registered animal in this catalogue, the vendor will need to provide certain information to Angus Australia and the buyer consents to the collection
SUPPLEMENTARY SHEET
With updated weights available prior to the sale on www.myanga.com.au
GUARANTEE
Myanga guarantee all bulls to be fertile and capable of natural service, however any claims must be accompanied by a veterinary certificate and made within 6 months of sale date.
and disclosure of that information by Angus Australia in certain circumstances. If the buyer does not wish for his or her information to be stored and disclosed by Angus Australia, the buyer must complete the form included below and forward it to Angus Australia. If the form is not completed, the buyer will be taken to have consented to the disclosure of such information.
PARENT VERIFICATION SUFFIXES
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.
Beef Class Structural Assessment System
Structural problems in cattle have a substantial effect on both the reproductive and growth performance of a beef herd. It is widely recognised that structural problems in sires have detrimental effects on conception rates, calving patterns and thus profitability. Similarly, females with inadequate structural characteristics are more prone to weaning lighter calves or conceiving later in the breeding season than their more functional counterparts. These structural problems are filtered through the supply chain resulting in reduced income for the producer, feedlot and thus reducing the overall productivity of the Australian Beef Industry.
Over the two decades, use of the Beef Class Structural Assessment System in the seedstock industry has produced a marked improvement in herds which have shown commitment to using the information appropriately. Through these dedicated breeders, there has been a flow on affect of structural improvement through out all sectors of the beef cattle industry. This structural analysis has allowed the formation of structural EBV’s which are gaining momentum within the industry.
Liam Cardile of ‘BEEFXCEL’ structurally assesses many of the leading seedstock herds in Australia. ‘BEEFXCEL’ is not involved in any genetic marketing or specific breeding advice and therefore has no conflict of interests to influence their stock appraisal. The integrity of the structural data provided by ‘BEEFXCEL’ is recognised throughout the industry as Liam is a fully INDEPENDENT assessor.
‘MYANGA’ STRUCTURAL PROGRAM:
The 2025 ‘MYANGA’ Sale Bulls have been independently structurally assessed to maximise the quality of stock on offer. Any animals deemed inadequate have been removed from the sale draft. All bulls were assessed by Liam Cardile of BEEFXCEL. Please contact Liam directly if you wish to discuss the assessment system.
How to use The Beef Class Structural Assessment System
The Beef Class Structural Assessment System uses a 1-9 scoring system;
• A score of 5 is ideal. (Note: Temperament Score of 1 is preferable)
• A score of 4 or 6 shows slight variation from ideal, but this includes most animals. An animal scoring 4 or 6 would be acceptable in any breeding program.
• A score of 3 or 7 shows greater variation but would be acceptable in most commercial programs. However, seedstock producers should be vigilant and understand that this score indicates greater variation from ideal.
• A score of 2 or 8 are low scoring animals and should be looked closely before purchasing.
• A score of 1 or 9 should not be catalogued and are considered culls.
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).
What is an EBV?
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.
Using EBVs to Compare the Genetics of Two Animals
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).
Using EBVs to Benchmark an Animal’s Genetics with the Breed
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.
Considering Accuracy
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.
Description of TACE EBVs
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.
UNDERSTANDING ESTIMATED BREEDING VALUES (EBVS)
CEDir % Genetic differences in the ability of a sire’s calves to be born unassisted from 2 year old heifers.
CEDtrs % Genetic differences in the ability of a sire’s daughters to calve unassisted at 2 years of age.
GL days
Genetic differences between animals in the length of time from the date of conception to the birth of the calf.
BW kg Genetic differences between animals in calf weight at birth.
200 Day kg
400 Day kg
600 Day kg
MCH cm
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.
MBC score Genetic differences between animals in the body condition of mature females.
MCW kg Genetic differences between animals in live weight of cows at 5 years of age.
Milk kg
DtC days
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.
SS cm Genetic differences between animals in scrotal circumference at 400 days of age.
CWT kg Genetic differences between animals in hot standard carcase weight at 750 days of age.
EMA cm2 Genetic differences between animals in eye muscle area at the 12/13th rib site in a 400 kg carcase.
Rib Fat mm
Genetic differences between animals in fat depth at the 12/13th rib site in a 400 kg carcase.
P8 Fat mm Genetic differences between animals in fat depth at the P8 rump site in a 400 kg carcase.
RBY % Genetic differences between animals in boned out saleable meat from a 400 kg carcase.
IMF % Genetic differences between animals in intramuscular fat (marbling) at the 12/13th rib site in a 400 kg carcase.
NFI-F kg/day Genetic differences between animals in feed intake at a standard weight and rate of weight gain when animals are in a feedlot finishing phase.
Doc % Genetic differences between animals in temperament.
Claw Set score Genetic differences in claw set structure (shape and evenness of claws).
Foot
Angle score Genetic differences in foot angle (strength of pastern, depth of heel).
Leg Angle score Genetic differences in rear leg structure when viewed from the side (angle at front of the hock).
$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 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.
Recommendations for the introduction and management of your new bull:
1. UPON ARRIVAL:
a) Ensure your new bulls socialises with a group of animals, (anything except other bulls) in the yards, when they arrive.
b) Run the new bulls with a small group of empty females, (he has come from a different herd and may not have had exposure to some of the normal pathogens present in your herd –see further information below).
i. This MUST be done with the empty females, for a period of 2 to 4 weeks. Ideally the bull can then be rested for 6-8 weeks prior to joining.
ii. Ideally give the cows prostaglandin every 2 weeks so they continue to cycle.
c) Ideally bulls should be insured for their first year as standard.
2. PRE-JOINING:
a) We recommend a breeding soundness examination (BSE), including structural assessment, testicular palpation, service ability testing and semen testing (essential in single sire matings). This is mandatory for second joining and older bulls each year. It will improve the fertility performance of the herd, by removing infertile bulls from the joining group. If bulls are not service tested it is essential that you observe the bulls serve in the first week on joining.
i. These bulls will be given a risk rating and mating potential which will influence joining bull teams.
b) Keep vaccinations up to date; Vibrovax, Leptospirosis 7-in-1, Pestigard and an annual drench, 4-6 weeks prior to joining.
3. JOINING - new bulls have the highest risk of breakdown in the herd, this risk can be reduced by:
a) PROTECT a new bull by not over-joining, 30 females per virgin bull maximum.
b) Recommended to multi-sire join.
i. Ideally mixing bulls of different age groups, experience levels and risk ratings.
c) It is recommended, IF single sire joining with a new bull, to rotate him with a proven bull for at least one cycle. Also, it is good practice to rotate proven bulls for the last cycle with all new bulls.
“Most new bull fertility issues develop or are acquired during the joining period, rather than being pre-existing problems, this means that bull observation during the joining period is essential!
ONCE THE JOINING PROGRAM IS SET UP, MONITORING IS ESSENTIAL TO IDENTIFY ISSUES AS THEY DEVELOP.
Your new bulls need to be run in mobs that are easily monitored, keep them close to promote observation, check them 2 to 3 times a week for the first three weeks and then weekly thereafter. This involves looking for,
1. The bull serving, (this has not been successful until the bull thrusts). If bulls are continually mounting without serving it is often a sign the bull has developed a penile infection and needs to be rested and replaced immediately. Sound bulls should serve every 1 to 2 mounts.
2. Lameness.
3. Evidence of penile or preputial swelling or inflammation
4. Signs of ill health, lethargy, etc.
5. Estimate the number of females cycling, (for every 20 females, one cycles each day at the commencement of joining). After three weeks of joining, there should only be one cow cycling every three days in 20 females.
4. POST-JOINING:
a. Annual breeding soundness evaluation is a non-negotiable procedure.
b. Good management of bulls is a year-round procedure.
i. Keep bulls in working body condition – they should be in body condition score 3/5 at the start of mating, which will involve removing weight following the joining period.
ii. Manage bulls in groups of joining teams to establish stable social hierarchies and minimise bull fighting.
✓ Bulls need to be removed from the cows at the same time, to help create their bull mobs. This will limit the number of potential injuries by reducing the number of bull interactions.
✓ Bull paddock management is very important to minimise injury between joinings. The bulls need enough room to reduce fighting, restricted feed and water will increase interaction. Paddocks will require co-grazing with sheep, or crash-grazing by other mobs to manage feed quality and quantity on offer for the bulls.
✓ The target between joining is to restrict weight gain in older bulls to prevent breakdowns. Ideally young bulls have access to a higher level of nutrition as they continue to grow.
✓ Early pregnancy testing is essential for good female management and detection of surprises. The earlier the pregnancy testing is undertaken, the more likely the cause of the problem will be identified. This will not only give you early notice of the problem but also help in formulating a plan to help reduce the chance of the problem occurring again in the future.
PENILE INFECTIONS IN BULLS – “Balanoposthitis”:
Penile infections are a common disease in young bulls during their first joining season in any new herd. Mitigating the risk of this disease as outlined above is essential to reduce the number of breakdowns and optimise bull cost per calf.
These infections are caused by a range of bacterial, viral, and other organisms (“pathogens”). The genital form of infectious bovine rhinotracheitis (IBR; herpes virus) is commonly implicated. The issue is that any given property has its own population of reproductive tract pathogens and if the new bulls make their first contact with these pathogens at the time of high workload (such as joining) they are at a high risk of developing a penile injury.
These injuries typically involve a reddened inflamed penis, developing to ulceration and pustules. Some bulls will stop serving due to pain (will continue to mount, but not serve), but other high libido bulls will continue to serve and create significant inflammation commonly leading to preputial tears, abscesses and prolapses. These are often perceived to be a “broken penis”, which they are not and IF treated promptly may regain normal function!
Treatment involves prompt removal of the affected bull from the joining mob, sexual rest (typically for the remainder of the joining) and treatment with antibiotics and anti-inflammatories. Preputial prolapses require surgical replacement.
If undetected these injuries commonly cause a significant decrease in pregnancy rate and commonly result in permanent infertility in the bull. Observation and intervention are essential!
Prevention of this condition is best achieved as outlined above, by deliberate pre-exposure of new bulls to a small number of females (low workload) well before the joining so that they are exposed and can develop immunity to the herds’ pathogens prior to the high workload of the joining period.
Positive fertility outcomes are a significant driver of profitability in beef breeding enterprises, but this requires informed and active management!
Dr. Shane Thomson BVetBio. BVSc. MAnSc. for HOLBROOK VETERINARY CENTRE.
Directions to Myanga
Taralga Road To Taralga
Chapmans Lane
To Goulburn Taralga Road
Myanga is 20km north of Goulburn.
From Goulburn travel north along the Goulburn Taralga road for approx 20km, crossing the Tarlo river.
Turn right into Chapmans Lane.
Follow the lane around (approx 2kms) to Moondance on your left.
Full Catalogue Design by Sam Hamilton, Angus Australia
