Analysis of non-genetic factors affecting calving difficulty in the Czech Holstein population
نویسندگان
چکیده
منابع مشابه
Heterogeneity of genetic parameters for calving difficulty in Holstein heifers in Ireland.
Calving difficulty is a trait that greatly affects animal welfare, herd profitability, and the amount of labor required by cattle farmers. It is influenced by direct and maternal genetic components. Selection and breeding strategies can optimize the accuracy of genetic evaluations and correctly emphasize calving difficulty in multiple-trait indices provided there are accurate estimates of genet...
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The objectives of this study were 1) to detect quantitative trait loci (QTL) affecting direct and maternal calving traits at first calving in the Danish Holstein population, 2) to distinguish between pleiotropic and linked QTL for chromosome regions affecting more than one trait, and 3) to detect QTL affecting stillbirth and calving difficulties but not calf size that could be used in selection...
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ژورنال
عنوان ژورنال: Czech Journal of Animal Science
سال: 2008
ISSN: 1212-1819,1805-9309
DOI: 10.17221/355-cjas