Article
Analysis of fertility and dystocia in Holsteins using recursive models to handle censored and categorical data.
Journal of dairy science - 1 Apr 2007
López de Maturana E, Legarra A, Varona L, Ugarte E
Abstract excerpt
A method based on the analysis of recursive multiple-trait models was used to 1) estimate genetic and phenotypic relationships of calving ease (CE) with fertility traits and 2) analyze whether dystocia negatively affects reproductive performance in the next reproductive cycle. Data were collected from 1995 through 2002, and contained 33,532 records of CE and reproductive data of 17,558 Holstein cows distributed...
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