EXTERIOR AND CONSTITUTIONAL FEATURES AND DYNAMICS OF CHANGE OF LIVE WEIGHT OF YOUNG GROWTH OF THE KAZAKH WHITE-HEADED BREED OF VARIOUS GENOTYPES OF THE FARM "KHAFIZ" OF THE WEST KAZAKHSTAN REGION

The article presents the results of the study of exterior-constitutional features and dynamics of changes in the live weight of young Kazakh white-headed breed of different factory lines of the Kazakh white-headed breed of the peasant farm "Hafiz" West Kazakhstan selection. The main methods of improving the Kazakh white-headed breed of the domestic population at the present stage are linear breeding, as well as evaluation, selection and intensive use of the best bulls of the breed of tall type of physique. Studies show that bulls and heifers of all factory lines in all age periods live weight exceeds the requirements of the breed standard, while the largest live weight significantly allocated descendants of the factory line Cactus 7969 at the age of 6 months and the factory line King 13682 at the age of 12 months.According to the main body measurements, more noticeable interline differences were observed in bulls at the age of 12 months, while at the age of 15 months they were characterized by uniformity.

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