Growth and development of coarse-wooled fat-tailed lambs in priaralye

The article presents the results of the study of pure breeding of Auliekol beef cattle. The study was conducted in Kazakh Scientific Research Institute of Animal Husbandry and Forage Production. Crossing of different lines increased the average indicator of body weight by 6-8%. In recent years, the farm has been crossing Charolais cattle and purebred Auliekol cattle. It resulted in hybrids. The animals are characterized by increased growth capacity in a longer period of time, it is economically justified under conditions of extensive grazing system. The test showed that the Charolais steers born in AF "Dievskaya” were superior to purebred Auliekol animals. The heifers of this bred also had advantages in body weight during the rearing under stall and pasture conditions. The category of improvers contained 8 Charolais steers. The weight was 464.4 kg (index 102.2), the average daily gain - 1055 g (108.9), feed consumption - 6.9 f. un. (104.3), beefiness - 55.1 (103.2) points. The hybrids had advantages over the purebred animals in the intensity of growth. The period of intensive growth of the hybrids was longer in comparison with the purebred animals. The purebred Charolais steers also had advantages over the purebred Auliekol animals in this indicator.

мясное скотоводство, аулиекольская порода, шароле, чистопородное разведение, вводное скрещивание, селекция, продуктивность, beef cattle breeding, Auliekol breed, Charolais, pure breeding, introductory crossing, selection, productivity

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