ЕФЕКТИВНІСТЬ ВИКОРИСТАННЯ ВІТАМІНУ Е В РАЦІОНАХ КОРІВ В ПЕРІОД ЛАКТАЦІЇ ДЛЯ ОДЕРЖАННЯ ЯКІСНОГО ВІТАМІНІЗОВАНОГО МОЛОКА

The article provides the results of studies of the effectiveness of feeding lactating cows with increased amount of vitamin E in the composition of the premix on some indicators of the milk quality and its biological value. With the 30 days enrichment of cows’ ration (due to the basic diet the cows received 1600-1700 mg of vitamin E) E-vitamin premix with tocopherol content of 370 and 490 mg/ head / day found a significant increase in its concentration in milk (with 0.08 mg / ml in the control up to 0.14 and up to 0.245 mg/ml in the experimental groups),that indicates the possibility of obtaining fortified milk in a natural way. Also the efficiency of additional quantities of vitamin E impact to reduce the concentration of somatic cells in milk, thereby increasing the quality of raw milk is set. For example, contents of somatic cells in milk of cows in the control group was 600-610 thousand / cm, and in the milk of animals of the 2d and 3d experimental groups it was 490-500 and 500-510 thousand/cm3, respectively, which is by 18-20% less compared with control. The lactose content (4.94 – 5.03%), the dry matter in milk of cows of all groups remained without significant changes. The content of fat and protein in the milk of cows of the experimental group during the entire experience had a tendency to increase at the completion of further addition of amounts of vitamin E premix as well. Key words: vitamin E, milk quality, cows, somatic cells, premix.