INCREASING OF THE MAIN AGRICULTURAL ANIMAL BREED GENETIC POTENTIAL OF POVOLZHYE
The results of the research aimed on the increasing the productivity of purebred and crossbred animals are described in the article. The Simmental German bulls, Canadian Hereford bulls, the large Estonian white pigs and the Australian selection of merino meat-type sheep are selected for purebred breeding and crossbreeding and used for making a research. Full-grown cows of German breeding on 2 and 3 lactations had a higher milk production and outnumbered their peers by milk yield, milk fat amount and milk protein on 9.73; 10.43; 9.46% and 11.82; 15.27; 12.28% respectively. 1/4 Hereford blooded bulls during breeding “in themselves” were characterized by greater growth energy than their purebred Kazakh White Head peers. The absolute and average daily growth in hybrid bull-calves at the age of from birth to 7 months were higher on 5.3-6.86% and 5.31-6.79% compared to purebred animals. Mating of Large White sows and boars of Estonian breeding had a positive effect on increasing their reproductive, fattening and meat productivity on 2.7-13.9%. Mating of Stavropol sheep and Australian merino meat-type sheep promotes the production of offspring with higher meat qualities.