ПОВЫШЕНИЕ ПРОДУКТИВНОСТИ ОВЕЦ ЭДИЛБАЕВСКОЙ, САРЫАРКИНСКОЙ И КАЗАХСКОЙ КУРДЮЧНОЙ ПОЛУГРУБОШЕРСТНОЙ ПОРОД НА ОСНОВЕ ИСПОЛЬЗОВАНИЯ ЛИНЕЙНЫХ БАРАНОВ

Abstract

The article presents the results of research on the use of linear sheep of edilbaevsky, saryarkinsky and Kazakh short-tailed semi-coarse breeds on the uterus of the non-tribal part of the herds in order to improve their meat productivity. The research was conducted on farms in West Kazakhstan and Karaganda regions. The average live weight of linear rams used in the experimental group of Queens and producers of the control group was 114 and 102 kg for the edilbaev breed, 99 and 93 kg for the saryarkin breed, and 95 and 91.5 kg for the Kazakh short – tailed semi – rough – haired breed. The average live weight of Queens of the experimental and control groups: 62.4 and 62.6; 57.4 and 57.2 kg and 53.2-53.0 kg. The results of research showed that in all variants of selection, the descendants of linear rams are born larger and become highly reliable by 4-4,5 and 16-18 months of age. The rate of meat production per uterus at the time of lambs weaning was 36.5-41.5 kg in the linear rams groups, or 5.2-5.7% higher than in the non-linear producers groups. When carrying out control slaughters of rams in 4 and 16 months. in terms of age, both in terms of slaughter indicators and meat qualities, the advantage was on the side of linear rams.The use of linear rams on the uterus of the non-tribal part of the sheep herds of edilbaevsky, saryarkinsky and Kazakh short-tailed semi-coarse breeds contributed to the production of young animals with a higher intensity and energy of growth in comparison with off spring from non-linear producers, which provided higher production of meat per uterus.