Article
Genetic analysis of fertility-related diseases and disorders in Norwegian Red cows.
Journal of dairy science - 1 Jun 2010
Heringstad B
Abstract excerpt
Heritability of and genetic correlations among silent heat (SH), cystic ovaries (CO), metritis (MET), and retained placenta (RP) were inferred. These traits were chosen because they are the 4 most frequent fertility-related diseases and disorders among first-lactation cows in Norway. Records of 503,683 first-lactation daughters of 1,058 Norwegian Red sires with first calving from 2000 through 2006 were analyzed...
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