МЯСНАЯ ПРОДУКТИВНОСТЬ ПОМЕСЕЙ ПРИ СКРЕЩИВАНИИ БЕСТУЖЕВСКОЙ ПОРОДЫ С ШАРОЛЕЗСКОЙ

Abstract

The article presents the results of research on fattening and meat qualities of bestuzhev-charolaise crossbreeds (bulls) of various bloodlines. At the same time, bulls of the II generation (ӏӏӏ group) had the highest average daily growth (1085g), respectively, absolute (216kg) and relative growth (59.34%). In animals of the same group, less feed was spent on 1 kg of growth (6.3 feed units) and the best payment for feed was made with an increase (14.49 kg). All of these indicators of crossbred bulls of I and III generation (II and IV groups) also exceed bestuzhev purebred bulls, but inferior to the hybrids of II generation (III group). The results of the control slaughter, carried out at the age of 15 months, compared with the pure breed Bestuzhev cattle weight more carcasses crossbred bulls in all three groups have more carcasses, but the hybrid animals have the greatest III generation, then II generation ( III group) and I generation. Economic indicators of growing and fattening bestuzhev-charolaise bulls of different blood types showed that with an increase in blood content for the charolaise breed, the profit per 1 animal sold increases and the level of profitability of beef production increases in comparison with purebred Bestuzhev animals. Therefore, crossing a half-breed bestuzhevskih heifers with bulls Charolais to II and III generation economically feasible. Using this method of crossing will allow farms in the Middle Volga region to significantly increase the production of beef and improve its quality.