Article
A limited number of Y chromosome lineages is present in North American Holsteins.
Journal of dairy science - 1 Apr 2015
Yue Xiang-Peng, Dechow Chad, Liu Wan-Sheng
Abstract excerpt
Holsteins are the most numerous dairy cattle breed in North America and the breed has undergone intensive selection for improving milk production and conformation. Theoretically, this intensive selection could lead to a reduction of the effective population size and reduced genetic diversity. The objective of this study was to investigate the effective population size of the Holstein Y chromosome and the effects...
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