GENETIC ASPECTS OF OPTIMIZING SELECTION IN POPULATIONS OF DAIRY CATTLE

M. S. Berdychevsky, E. I. Fedorovich, M. I. Kuziv, I. V. Novak

Generalized literature data and results of their research value of different forms of selection in shaping genetic population structure of dairy cattle. Assessed the role of possible genetic mechanisms for optimizing the selection of a peculiar form of dynamic and stabilizing, the current co-op with disruptive moving and artificial in the appropriate agroecosystems. Shown that the adaptive rate of dairy cattle populations evolve from M to M fenoclass stabilizing in M fenoclass at equality of vectors of natural and artificial selections. Defined 5 stages of dairy cattle by type of domestic and interbreeding crossing. Formulated hypothesis according to which formation of selective types of animals caused by alelnym as genes: hormone of growth (chromosome 19) and control its activity RIT-1 (chromosome 1), prolactin in combination with genes casein Complex and Microsatellites in chromosome 6.

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