Article
Genetic relationship between culling, milk production, fertility, and health traits in Norwegian red cows.
Journal of dairy science - 1 Oct 2008
Holtsmark M, Heringstad B, Madsen P, Ødegård J
Abstract excerpt
First-lactation records on 836,452 daughters of 3,064 Norwegian Red sires were used to examine associations between culling in first lactation and 305-d protein yield, susceptibility to clinical mastitis, lactation mean somatic cell score (SCS), nonreturn rate within 56 d in heifers and primiparous cows, and interval from calving to first insemination. A Bayesian multivariate threshold-linear model was used for...
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