Selektsionno-genetic criteria of selection of cows Black-motley breeds in breeding factory "Krasnogorsky" of Kirov

Babaylova G.P., Usmanova E.N.

E-mail: info@vgsha.info

Selektsionno-genetic criteria of selection of cows of black-motley breed Have been studied: factors of variability, heritability, correlation and selection effect. It has been established that at the expense of selection at growth of yields of milk by 158,1-197,7 kg on a cow in a year efficiency of cows by 2017 to increase on 1434 kg against level of 2011.

Keywords: herd of cows, black-motley breed, selection, technology with-derzhanija