Article
Positive genetic merit for fertility traits is associated with superior reproductive performance in pasture-based dairy cows with seasonal calving.
Journal of dairy science - 1 Sept 2021
Meier S, Kuhn-Sherlock B, Amer P A, Roche J R, Burke C R
Abstract excerpt
New Zealand's Fertility Breeding Value (FertBV) is reported as the percentage of a sire's daughters that calve in the first 42 d of the seasonal calving period and is an estimate of genetic merit for fertility for dairy cattle. Reproductive physiology, milk production, and changes in body weight and body condition score of 2 groups of cows divergent in FertBV (+5.0%: POS; -5.1%: NEG) were characterized during...
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