MILK PRODUCTIVITY AND TECHNOLOGICAL PROPETIES OF COWS OF RED-AND-WHITE BREED OF VOLGA TYPE
The article discusses milk productivity and technological properties of cows of new type compared to the original red-and-white breed. Crossbred animals of all genotypes outperform their peers of red-and-white breed according to milk yield by 316-1407 kg. Milk obtained from crossbred cows, which contains more fat by 0,05-0,65 %, protein by 0,1-0,25 % was the best in the chemical composition. The study of linear grading of exterior showed that animals with high milk production have the best exterior. This group includes cows of German breeding and hybrids of second generation. The volume of a body of highly productive animals is higher by 4,1 points, the severity of the dairy forms by 4,5 points, udder by 3,0 points and general appearance by 3,5 points compared to the red-and-white. According to intensity of lactation of crossbred animals of Danish, German breeding and crossbred cows of the second generation significantly outperform peers red-and-white breed.