НЕКОТОРЫЕ МЕТОДЫ ПОВЫШЕНИЯ ПРОИЗВОДСТВА ГОВЯДИНЫ В УСЛОВИЯХ КОЛЫМЫ

Abstract

For the first time in the conditions of the Magadan region, studies were carried out to study the characteristics of the meat productivity of crossbred bulls obtained from absorption and industrial crossing of animal meat breeds. The effectiveness of the organization of specialized rearing of crossbred young animals, taking into account its breed specificity, has been established. Scientific and economic experiments were carried out on young cattle in the production conditions of the Magadan region. The work was carried out in accordance with the plan for scientific research in 2021. The purpose of the research was to obtain data on a comparative analysis of the meat productivity of bulls of different genotypes obtained as a result of industrial and absorption crossing using animals of specialized meat breeds. The control group consisted of purebred dairy bulls. It has been established that crossbred bulls have the ability to intensively build muscle and form full-flesh carcasses by the age of 18 months. They are superior to purebred Holstein peers in pre-slaughter and slaughter weight, slaughter yield and meat index. The conducted studies showed that the differences in the intensity of growth, the use of feed and the productivity of crossbred and purebred young animals had a significant impact on the efficiency of their fattening. The data of economic analysis indicate a higher profitability of rearing crossbred bulls of the studied genotypes. The research results prove the successful use of absorption and industrial crossing with producers of specialized meat breeds in the conditions of commercial livestock enterprises of the Magadan region. The data obtained can be used to improve the efficiency of breeding work in beef cattle breeding in the development of plans for breeding work in the commercial farms of the region.