Sire Nominations open for Southern Multi-breed project

The New South Wales Department of Primary Industries (DPI) are seeking bull nominations for the second year of the Southern Multi-breed Project. The Southern Multi-Breed Project is a collaborative project between NSW DPI, Meat & Livestock Australia (MLA), Animal Genetics and Breeding Unit (AGBU) and the University of New England (UNE).

The objective of the Southern Multi-Breed Project is to underpin development of multi-breed Estimated Breeding Values (EBVs) by evaluating several breeds (Hereford, Wagyu, Shorthorn, Charolais, Angus and Brahman) side by side across 5 locations in NSW over the course of 5 years. Heifer progeny will be assessed for several fertility traits and joined naturally, while steers will be feedlot finished with feed efficiency and carcase records collected. For the second year of the project we are seeking to source semen straws from registered bulls, with AI beginning in September 2020. The progeny of these bulls will add to the base population for the remainder of the project.

The first round of joinings were conducted during the second half of 2019 with approximately 1300 females participating in the AI program and approximately 1600 females in total exposed to back-up bulls. The project has purchased approximately 100 PTIC females since December 2019 with approximately another 70-100 heifers to enter the joining program in 2020.

Successful applicants will need to provide 35 straws to be utilised by the AI technician for the second round of AI. Two (2) of these semen straws are required for genotyping. 

Criteria for sire selection

Bulls will be chosen based on the following:

  • Linkage with the breed
  • Influence in the breed, both current influence and potential future
  • EBVs – Diversity and Accuracy
  • Parent verified
  • Semen availability
  • Health/genetic conditions
  • Straws from past high accuracy sires are also encouraged
  • Proof of semen quality is required before shipment

Why nominate?

  • Linkage to the base herd in the program will increase EBV accuracy of the sires used and close relatives
  • Progeny will be measured from birth to slaughter contributing data for new or existing hard to measure traits
  • Data from progeny entered into an across-breed genetic evaluation


 Next steps

  1. Nominate up to 10 sires by July 31, 2020.Click here to nominate
  2. Please keep a record of your nominated sire/s
  3. Successful applicants will be notified between August 10-14, 2020
  4. Breeders to organise semen collection
  5. Last day of semen shipment Monday September 7, 2020. Cost of dispatch and shipment will be covered by NSW DPI

If you require any further information regarding semen collection, storage or shipment please contact Margaret Shedden, Castlereagh Artificial Breeders.

PH: 0408 498 922, email:

If you require any further information or wish to discuss the project, please do not hesitate to contact the Project Operations Manager, Jason Siddell.

PH: 0459 162 295, email: