The effectiveness of using the high-protein supplement in feeding dairy calves

The purpose of the research is to evaluate the effectiveness of using the high-protein supplement "Belkoff-M" in feeding dairy calves together with milk powder. The feed additive "Belkoff-M" is a mixture of protected soy and sunflower proteins, which contains 12.7 MJ of metabolic energy, 42.5-43.5% of crude protein, 29.0% of protein decomposed in rumen, 71.0% of protein not decomposed in rumen, 26.84 g of lysine, 5.57 g of methionine. In scientific and economic experience on three groups of calves of about 10 heads each, the effect of starter feeds containing 20.0% by weight of the high-protein supplement Belkoff-M together with Balasheyskoye field flask on the consumption of dietary feed, the digestibility of nutrients, growth energy, and the biochemical status of blood was studied. The inclusion of the Belkoff-M additive in the starter feed in combination with flakes provides an increase in the average daily increase in live weight of calves by 17.1%. Cost reduction per 1 kg of increase: by 6.3% for EQ, by 8.7% for dry matter, by 2.3% for concentrates. Replacing sunflower meal in the starter feed with the Belkoff-M supplement increases the digestibility of nutrients in the diet: dry matter by 4.7 abs.%, crude protein by 5.17 abs.%, crude fat by 2.07 abs.%, crude fiber by 5.10%, BEV by 2.31 abs.%. The inclusion of a high-protein feed additive in the starter feed together with Balasheyskoye field flask instead of skimmed milk powder and sunflower meal provided an increase in average daily growth and a reduction in feed costs.