Herd fertility has a major impact on returns in a commercial beef herd. In economic terms, a 1% increase in herd fertility is equivalent to approximately a 10% rise in growth rate. Fertility within a herd is influenced by four major factors: • Reproductive soundness of bulls • Structural soundness • Management • Genetics
What difference would a bull with a +30 kg EBV for 400 Day Weight make as a terminal sire in a commercial herd? The sire and dam each contribute 50% of the genes to their offspring. The sire has an EBV advantage of +30kg and we will assume the dam has no influence (i.e. 0kg … Read more How much should you pay for a bull?
Trials are occasionally carried out to validate Estimated Breeding Values (EBVs), to prove that what they are predicting is actually happening on commercial farms. This involves matching the expected performance on farm (the EBV) to the actual performance for a given trait. An outcome of the Beef + Lamb New Zealand Genetics Beef Progeny Test … Read more Do EBVs work?
EBVs are in real units for several economically relevant traits. • Use the breed averages to compare the given bull’s EBV for the trait you are looking at. • Compare breed averages to the Percentile Bands Table to see where the bull ranks within its breed. • If in doubt, use the EBV graph. • … Read more Selecting a bull – Genetic information
What a season we’ve had! Despite trying times the results seen across the country for 2-year-old Angus bull sales were strong – stronger than ever before in some cases… The South Island saw solid results – worth mentioning is Sudeley Angus in Canterbury, which sold 38/40 bull offered, at an average on over $11,000. The … Read more July e-Newsletter 2020