MILK PRODUCTIVITY OF COWS OF DIFFERENT GENOTYPES DEPENDING ON THE NUMBERS OF LACTATION
The article presents the indicators of milk productivity of cows 1/8 krovnosti zebu in compared with red steppe peers for the first, second and third lactation. The studies were carried out on cows of different genotypes in conditions of the steppe zone of the Chechen Republic, with year-round maintenance on pasture. Milk yield in the base fat for the first, second and third lactation hybrid cows was higher by 13.1, 11.8 and 10.4 percent in comparison to peers and the yield of milk fat, respectively - 13.1, to 11.9 and 10.4%. The fat content in milk of cows of hybrid was higher than in the first, second and third lactation - 0.63, 0.67 and 0.62 percent, they had mostly the desired udder shape and size of nipples.