3 minute read
Net Feed Intake – Be rewarded for your thriftiness
FEEDER STEER NOMINATIONS FOR THE NFI PROJECT ARE OPEN NOW, WITH LIMITED INTAKE GROUPS REMAINING.
FOR MORE INFORMATION, CONTACT
CAREL TESELING carel@wagyu.org.au
GEORGE LUBBE george@stockyardbeef.com.au Working with Meat and Livestock Australian and Stockyard Kerwee Feedlot, AWA members have a limited opportunity to have Fullblood progeny of their sires tested for Net Feed Intake (NFI) So far, approximately 1,000 progeny from 58 different sires have been tested. We anticipate that these numbers will double by the end of the project – presenting a limited opportunity for AWA members to have their sires tested for NFI.
Using the data on progeny from the anticipated ~120 sires, the AWA will be looking to test NFI EBVs for Wagyu production and understand the opportunity for Wagyu supply chains to benefit from using more efficient genetics. The AWA has been conducting NFI studies since 2018, at Kerwee Feedlot near Jondaryn Queensland using the Growsafe (now Vytelle) Feeders. The Wagyu NFI project is necessary to understand opportunities to cost-effectively feed long-fed Wagyu cattle in the future. It is also vital information to contribute to our understanding surrounding genetic variability in methane production in future Wagyu research. Stockyard Kerwee Feedlot has two production pens fitted with GrowSafe feeders with each pen capable of feeding 90 head. Meaning a total of 180 animals can be fed under NFI test conditions in a single test intake. The induction and NFI testing period currently totals 100 days, so the pens have the capacity to run three feed test intakes each year totaling 540 animals, providing significant capability for Wagyu sire testing over the next 2 years. Seven full cohorts have been completed so far. There are 6 cohorts remaining in the project with animals now being accepted for 2022 intakes. If you have groups of Fullblood feeder steers available for feedlot entry now, or becoming available during 2022, please contact Carel Teseling (carel@wagyu.org.au) or George Lubbe (george@stockyardbeef.com.au) to find out about the requirements for the NFI project and having your progeny tested through feedlot finishing in the Stockyard program. Analysis conducted by Kirsty Moore from the Animal Genetics Breeding Unit (AGBU) on the data collected in the NFI project to date, shows that there is a potential variance of 0.8kg/day NFI across sires. That means, there are sires whose progeny consume 0.8kg less feed per day for the same growth rate – presenting an opportunity to significantly reduce feed costs over long feeding periods.
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