Article
Quantitative trait loci affecting fertility and calving traits in Swedish dairy cattle.
Journal of dairy science - 1 Sept 2006
Holmberg M, Andersson-Eklund L
Abstract excerpt
Impaired fertility is the main reason for involuntary culling of dairy cows in Sweden. The objective of this study was to map quantitative trait loci (QTL) influencing fertility and calving traits in the Swedish dairy cattle population. The traits analyzed were number of inseminations, 56-d nonreturn rate, interval from calving to first insemination, fertility treatments, heat intensity score, stillbirth, and...
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