Milk productivity and quality in cows of different breeds

The purpose of the research was to improve the impact of breed on the productivity and quality of daughters' milk in controlled breeding herds. Studies on the qualitative composition of milk were carried out on 3 breeds of cattle: black-and-white, Holstein and Tatarstan type of the Kholmogory breed. The analysis of milk samples was carried out on modern Combifoss equipment for 11 indicators in the laboratory of selection control of milk quality of JSC GPP "Elita". Studies have shown that dairy breeds bred in Tatarstan and cows in controlled herds have high productivity with an average milk yield of 8554 kg and good quality milk with a content of 3,74 % fat, 3,38 % protein, 4,93 % lactose. Among the studied breeds, cows of the Holstein breed have the highest productivity - 8901 kg, the highest fat content - 3,86 % - of the Tatarstan type, the highest protein content - 3,45 % - of the black-and-white breed.