Genetic and economic efficiency of selection of bulls to productive and technological traits of their daughters

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Results of modeling of variants of selection of bulls are stated: only on dairy fat, stage-by-stage selection on milking speed and dairy fat, stage-by-stage selection on single yield of milk and dairy fat, stage-by-stage selection on single yield of milk, milking speed and dairy fat of their daughters. Efficiency of each variant estimated in size of genetic superiority and in size of the total profit on cow per year.

Keywords: dairy cattle, productive traits, technological traits, genetic superiority, total profit