Effect of Genetic Merit for Milk Production, Dairy Cow Breed and Pre-Calving Feeding on Reproductive Physiology and Performance.

摘要

The overall objective of this project was to determine, followingfour experiments, the effects of genetic merit for milk production,dairy cow breed and prepartum feeding on reproductive physiologyand performance. In the present experiments, the high proportion of Holstein-Friesian genes played a more important role in reducingreproductive performance than milk production. Significant breeddifferences in reproductive performance were detected.