Estimation of Bulls on the Family Tree and to Quality of Posterity
Abstract
Data about efficiency of the parent ancestors, supplementing the information on estimation of breeding qualities of a studied animal are studied. It is possible to draw a conclusion, that for increase of efficiency of breeding work it is necessary to consider on only estimation of bulls on dairy efficiency of their daughters, but also to use continuous improving selection of cows on productive qualities of female ancestors from the fatherly party of a family tree more widely.
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