Article
Clinical ketosis: phenotypic and genetic correlations between occurrences and with milk yield.
Journal of dairy science - 1 Nov 1991
Mäntysaari E A, Gröhn Y T, Quaas R L
Abstract excerpt
The repeatability and heritability of ketosis were estimated using data from 28,277 Finnish Ayrshire cows. A four-trait linear model including community-year, calving age and month, genetic group, and random sire effects was used to describe first and second lactation milk yields and veterinary diagnoses of ketosis. Variance components were estimated using REML. The disease traits were also analyzed with a...
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