ВЛИЯНИЕ МИНЕРАЛЬНО-ВИТАМИННОЙ ДОБАВКИ НА ИНФУЗОРНУЮ ФАУНУ РУБЦА И МОЛОЧНУЮ ПРОДУКТИВНОСТЬ КОРОВ

Abstract

The article presents the results of research on the use of mineral and vitamin supplements in the diets of dairy cows and its effect on the microfauna of the rumen and dairy productivity of animals. The object of research was highly productive cows during the period of milking. As a result of the conducted studies, it was found that the use of a feed additive contributed to the optimization of digestive processes by increasing the density of rumen infusoria in 1 ml of rumen fluid in lactating cows of the experimental groups compared with peers from the control group by 22.6–23.1 %, which is reliable (p ≥ 0,95). The feed additive had a positive effect on increasing the biodiversity of infusoria in the rumen of ruminants, creating more favorable conditions for the formation and growth of microfauna, and, consequently, for improving the digestibility of nutrients consumed feed, as evidenced by data on the dairy productivity of animals. During the period of the experiment, the average daily milk yield according to the results of control milkings of cows receiving «Minvit 6.1-Mama» in the amount of 150 g was 31.0 ± 0.6 kg, which is 8.0 % (p ≥ 0.99) more than animals from the control group. Cows of the experimental group 2 had an average daily milk yield of 31.8 ± 0.71 kg, which is 10.8 % (p ≥ 0.99) higher than the same indicator compared to peers from the control group. Thus, the use of mineral and vitamin supplement «Minvit 6.1-Mama» in the feeding of dairy cows contributes to the optimization of scar digestion while increasing the milk productivity of animals. The maximum biological and zootechnical effect is manifested by the introduction of a feed additive in the amount of 200 g per head per day