Breeding and productive quality factory lines of kazakh white-head breed on the farm "AYSULU"

Western Kazakhstan is a traditional region for breeding livestock of meat breeds and occupies a leading position in the country in this area. The object of research was the breeding herd of the Kazakh white-headed breed of Western Kazakhstan - the farm «Aisulu», animals in which are represented by factory lines, common in many herds of our country and CIS countries - Landysh 9879, Kaktus 7969, Salem 12747, Mailan 13851. The article presents the breeding and productive qualities of the factory lines of the farm «Aisulu». The genealogical structure of cows was studied. This herd is represented mainly by full-aged cows, whose share is 95.8%, with the largest share being occupied by animals of factory lines Mailan 13851 - 39.8% and Landysh 9879 - 34.9%. The study of the exterior and constitutional characteristics of cows in the herd showed that the best part of them is characterized by rather high indices. As well the indices of body of animals and the milk production of cows has been studied. The highest coefficient of variability in milk production of a cow of all factory lines of the farm «Aisulu» is characterized by a rather large variation interval, being within 25. All this indicates the possibility of further improving these characteristics in the selection and breeding work with the herd. The dynamics of live weight and average daily growth of young stock of various factory lines of gobies of the Kazakh white-headed breed were studied. Gobies of the factory line of Salem 12747 distinguished themselves with high live weight in all age periods. In heifers high body weight at 8-12 months of age distinguished animal factory line Mailan 13851, and at the age of 15 months, Salem 12747 was a similar trend was maintained in the average daily growth.

мясной скот, казахская белоголовая, генеалогическая структура, молочность, экстерьер, конституция, рост и развитие, среднесуточный прирост, Beef cattle, Kazakh white-headed, genealogical structure, milkiness, exterior, constitution, growth and development, average daily gain