Article
Analysis of the relationship between somatic cell score and functional longevity in Canadian dairy cattle.
Journal of dairy science - 1 Sept 2006
Sewalem A, Miglior F, Kistemaker G J, Van Doormaal B J
Abstract excerpt
The aim of this study was to assess the level of somatic cell count (SCC) and to explore the impact of somatic cell score (SCS) on the functional longevity of Canadian dairy cattle by using a Weibull proportional hazards model. Data consisted of 1,911,428 cows from 15,970 herds sired by 7,826 sires for Holsteins, 80,977 cows in 2,036 herds from 1,153 sires for Ayrshires, and 53,114 cows in 1,372 herds from 1,758...
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