Article
Genetic correlations between yield traits or days open measured in cows and semen production traits measured in bulls.
Animal : an international journal of animal bioscience - 1 Oct 2018
Hagiya K, Hanamure T, Hayakawa H, Abe H, Baba T, Muranishi Y, Terawaki Y
Abstract excerpt
We used a bivariate animal model to investigate the genetic correlations between yield traits or days open (DO) as characters measured in cows and semen production traits as characters measured in bulls. Lactation records of 305-day milk, fat, and protein yields, and DO, from 386 809 first-lactation Holstein cows in Hokkaido, Japan, that calved between 2008 and 2014 were used. Semen production records were...
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