The use of the feed additive EnergoLact-O for cows after calving

The results of using a feed additive by drenching for cows after calving are presented. The research was carried out in the conditions of the dairy livestock complex of the Kirov region on dairy cows of the Black-and-White Holstein breed during the lactation period. In the experiment, two feed additives for cow drenching were studied – "LactoTop" and "EnergoLact-O" on two groups of cows with 10 heads each. It was found that the drenching of cows using the feed additive "EnergoLact-O" in comparison with "LactoTop" helps to reduce the level of ketone bodies in the blood by 0.3 on the 5th day after calving. The milk productivity of cows of the second group ("EnergoLact-O") from the first month and throughout lactation significantly exceeded the milk productivity of cows of the first group ("LactoTop") in milk yield, as well as the mass fraction of fat and protein in milk. For 305 days of lactation, this milk yield superiority was 10.7% (p < 0.01), which allowed, with higher protein and fat levels in the milk of cows of the second group, to obtain milk fat (in kg) and milk protein (in kg) from these cows by 15.1% and 13.5%, respectively. Cows receiving the "EnergoLact-O" feed additive showed better reproduction performance compared to cows receiving "LactoTop". This allowed them to achieve a better insemination index of 1.9 compared to cows of the first group with an index of 2.1. The use of the feed additive "EnergoLact-O" allowed not only to save 6,000 rubles. when drenching 10 cows in the first 3 days after calving, but also to receive 31176 rubles more profit per cow than when using the "LactoTop" supplement. At the same time, the profitability of milk production increased by 9.8%.

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