EXCHANGE OF SUBSTANCES IN THE ORGANISM OF LACTATING COWS ON DIETS CONSISTING OF DIFFERENT KINDS OF SILOS
The balance experiment was conducted in the agricultural firm "Spasskoye" of the Republic of Mordovia on dairy cows of the second month of lactation. The basis of the diet of the animals of the first group was corn silage, the cows of the second group were fed sorghum-clover silage, and the individuals of the third group -sorghum silage. The results of the studies show that in lactating cows that consumed sorghum-clover silage, the functional activity of the digestive system, nitrogen and mineral metabolism increased compared to individuals who were fed corn or sorghum silage. At the same time, the use of sorghum-clover silage significantly increased the digestibility of organic matter by 3.96-3.24% and BEV - by 3.28-4.19 %>. In addition, the study of mineral metabolism proved that the animals of the second group spent more calcium and phosphorus on the synthesis of milk due to the high level of milk productivity.