The use of microvit and trivit as synthetic vitamin additives for fattened bull calves and their effect on meat production in the distillers grain fattening

Abstract

The article considers the issues of vitamin nutrition of bull calves and their meat production in distillers grain fattening. The authors argue, through reasoning, research and analysis, that with the distillers grain fattening of cattle, an increase in the synthetic vitamin A dose contributes to the intensive growth of animals and increases the yield of bull calves fattened. The diet in the distillers grain fattening should contain 50 % of distillers grains, 20 % of coarse fodder, 30 – 40 % of cereal grains, and sufficient amount of mineral supplements and vitamins, especially fat soluble ones. Such is vitamin A, that is, retinol in various chemical forms and types. Retinol plays a very important biological role for cattle. To date, there have been no rules for the introduction of various additives and forms of retinol in the diet of cattle.