Dairy farmers face a decision these days about how heavily to use young bulls with exceptional genomic proofs in herd breeding programs, says Bennet Cassell, Virginia Tech extension dairy genetics specialist.
To find some direction for producers, scientists from USDA’s Animal Improvement Programs Laboratory recently conducted a study that compared selection on proofs with and without genomic information on Holstein bulls with and without daughters. Their results found that the best group of 20 bulls was the group of young sires chosen on genomic evaluations, and second best — $53 behind the best group — was the group of proven bulls with genomic data, says Cassell.
Click here for more results and study conclusions.
Source: Dairy Pipeline, September 2009