Аграрный вестник Урала № 09 (127) 2014
ЖивотноводствоУДК:636.22/.28.034
THE INFLUENCE OF GENETIC AND TECHNOLOGICAL FACTORS ON MILK PRODUCTIVITY FRESH COWS IN THE APC “KILACHEVSKY”
The article presents the results of studies conducted in the APC “Kilachevsky”, Sverdlovsk region, Irbitsky borough. Object of research are cow-heifers Ural Black Pied type cattle. Objective was to study the effect of linear fashion accessories and sucker mothers on milk productivity daughters. Milk production of cows-daughters and evaluated by average gross yield for 100 and 305 days of lactation, the dry matter content and its components: fat, protein, skimmed milk solids, lactose and somatic cell content, determined grade milk. The milk yield of cows, heifers line Vis Ideal, whose mothers contained loose method was higher milk production of their counterparts — the daughters of cows kept tethered method by 3.3 %. Cows, heifers Reflection Sovering line, had the same milk production in loose as and when tethering process the content of their mothers. Daughter cows kept tethered method showed the same milk production regardless of the strain. Daughter’s milk cows kept loose way, qualitative indicators exceeded daughters milk cows kept on a leash. Milk cows line Reflection Sovering, whose mothers contained loose method had better quality indicators. For the reproduction of cows in loose housing bulls line Vis Ideal to increase milk yield and bulls line Reflection Sovering to improve milk fat in loose housing of cows and milk fat content of cows at the fastened.
Keywords:
milk, productivity, line maintenance, cow, bull, milk yield, grade
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