Feed additive based on biologically active substances for fattening steers

Abstract

The modern agricultural market offers a wide range of products designed for a highly effective and most importantly safe increase in growth indicators, the level of development and the degree of productivity of domestic animals. The leading role in achieving the highest quality result is played by a competent choice of feed additives. The purpose of the research was to study the use of a feed additive based on biologically active substances (BAS) in the fattening of steers. The effect of the feed additive based on a natural, balanced, natural complex of biologically active substances such as vitamins B, C, PP, tryptophan (with oral administration bioavailability reaches 90 %), antioxidants, essential and free amino acids, enzymes and trace element salts on the growth and development of young cattle of Black-and-White breed has been studied. The steers of the control group received the main diet, and the animals of the experimental group in addition to the main diet received the feed additive consisting of vitamins, amino acids, antioxidants, enzymes and trace element salts. It has been found by the studies that the use of the test feed additive based on BAS provides an improvement in the digestibility and assimilation of nutrients in the diet, which contributed to the increase in the average daily live weight gain in the experimental group by 263 g or 25 %, the decrease in feed consumption for 1 kg of gain and the improvement in blood biochemical parameters, such as inorganic phosphorus, AST, ALT, alkaline phosphatase within physiological norms. In order to balance the diets of 9-monthold steers by biologically active substances and improve the physiological and biochemical status, the digestibility of nutrients that contribute to the increase in the average daily weight gain, it is recommended to use the feed additive based on BAS with drinking water.