The effect of liposomal feed additives on the provision of vitamin A and carotene in cows

Abstract

In conditions of industrial milk production, it is important to provide livestock with complete feed, including all the necessary nutrients to meet the needs of a lactating cow. Active metabolic processes and intense activity of the cow’s entire body during lactation are a prerequisite for increasing its need for vitamins. Currently, various feed additives and premixes are used in feeding dairy cows, enriching the animals’ diet with essential vitamins, but their productive effect is contradictory. The conducted studies established the positive effect of the liposomal additive “LipoCar” on meeting the need for β-carotene and vitamin A in the body of cows during lactation. Introduction of the feed additive “LipoCar” into the main diet in the amount of 6 g/cow/day. helps normalize the vitamin nutrition of cows, especially during the transit period. This is confirmed by the results of studies of the blood serum of cows before and after the use of the LipoCar feed additive. In the control group, the content of vitamin A in the blood serum of cows was 2.4 times higher and corresponded to the physiological norm, compared to the control group, where this indicator did not correspond to the norm. There was a positive trend in the content of β-carotene in the blood serum of cows in the experimental group, with an increase of 4.4 times by the end of the study compared to the control group. The results obtained allow us to recommend the use of the LipoCar feed additive in the diets of cows from the first day after calving in an amount of 6 g/head. 1 time per day for 30 days to normalize metabolism and increase resistance in lactating cow.