Meat productivity of young sheep Karachai' Breed

Abstract

The meat of Karachai sheep is distinguished by its exceptional taste qualities, formed due to selectivity in eating certain types of herbs, including medicinal herbs, it is biologically full. The aim of the research was the scientific substantiation of the features of the formation of meat productivity in young sheep of Karachai breed at different ages and the determination of the optimal age for the sale of animals for meat in the Karachay-Cherkess Republic. The object of the study was purebred sheep of Karachai breed. To conduct the experimental part of the work, 200 heads of ewes of the class of elite and class I were selected. They were randomly hand-tampered with four elite rams. From the obtained litter, two groups of young animals (sheep and lambs) were formed with 60 heads each. The highest average daily growth in bright (170.0 g) and rams (196.6 g) was observed in the first and second months of life, respectively. With age in both groups, the average daily growth rate decreased. According to the measurements of the main body articles, the superiority was on the side of the sheep, both at the age of 4 months and at the age of 12 months. According to the main body indexes, the best indicators were the group of sheep, which are characterized as animals with well-defined meat forms. The weight of the carcass of the sheep carcass was in the range from 11.79 to 25.03 kg and for 8 months it increased 2.1 times (by 112%). The weight of the cooled carcass also increased 2.1 times (from 11.6 to 24.4 kg), which was 110%. The slaughter weight and slaughter yield for the sheep were 12.225.63 kg and 46.6-52.3%, respectively. With age, in the Karachai coarse-wooled sheep breed, the percentage of cuts of the most valuable I grade is steadily increasing both in rams and in ewes, which is associated with the buildup of musculature. The yield of 1st grade in sheep bats was 10,18-21,55 kg (87,8-90,2%), and in ewes - 8,33-17,30 kg (88,6-90,5%). The increase in calorie content with age in bunches was 7.2%, in ewes - 4.9%. The lowest costs for growing a single head of young animals and a fairly high profitability (in barons 79.8, in ewes 73.9%) were obtained when young animals were sold at the age of 8 months after feeding them on natural pastures