Article
Genetics of parity-dependant production increase and its relationship with health, fertility, longevity, and conformation in swiss holsteins.
Journal of dairy science - 1 Apr 2005
Neuenschwander T, Kadarmideen H N, Wegmann S, de Haas Y
Abstract excerpt
Genetic analysis of production increase (ProdI), defined as an increase in production from early to later lactations, was conducted using data from the Holstein Association of Switzerland. This production increase describes the maturity rate of the cow. The data set contained 42,807 cows with a ProdI value. All cows had completed the first 3 lactations. Different formulas were derived for the computation of ProdI...
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