В. В. Кулинцев Due to the changing conditions of economic development, there is an increase in demand for beef produced in our country. Satisfying the need for beef is possible not only by increasing the number of livestock specialized in meat production. One of the effective solutions in cattle breeding can be the use of combined breeds, among which we can single out the Simmental breed, which is distinguished by good growth and development rates under the conditions of intensive cultivation technologies. Proper selection of the feeding ration will speed up the development of muscle tissue in the animal’s body and increase meat productivity. This article is devoted to the study of changes in the level of feeding on the meat productivity of Simmental young stock. The studies were carried out in the SEC PZ “Zarya-1” of the Karachay- Cherkess Republic. The study of meat productivity was carried out according to the accepted methodology of scientific research in animal husbandry. As a result of the analysis of the work performed, it was found that in the group of animals with an increased level of feeding, more intensive body growth was observed compared to the control group. The young bulls of group I received 28% more nutritious feed, which was reflected in live weight indicators in different age periods. So, at 6 months of age, the animals of the experimental group outperformed their counterparts from the control group by 21%; at 12 months of age by 26%; at 18 months by 20%. Also, the beneficial effect of the increased level of feeding was expressed in the values of the measurements and their ratios in the young bulls of group I compared to group II, which was reflected in the body shape of the animals. The young bulls of the control group lagged significantly behind the representatives of the experimental group in terms of body size. In terms of the output of the main slaughter products in all periods, there were differences between the young bulls of groups 1 and 2. At the age of 18 months, the young bulls of group 1 exceeded their counterparts from group 2 in carcass yield by 0.92%; in slaughter yield by 1.46%. When conducting a differentiated deboning of carcasses, it was found that the relative weight of pulp (muscle and fat) increased with age in both groups, while the weight of bones and tendons decreased. However, the young bulls of the experimental group had a higher percentage of bone content compared to their counterparts from the control group, which is especially noticeable in the lumbar and chest. it follows therefrom that an increased level of feeding has a beneficial effect on the growth and exterior indicators of Simmental young bulls and, consequently, on meat productivity indicators.
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