Digestibility of Nutrients and Productive Efect of Diets when Feeding Calves with Feed Supplement with Biologically Active Matters

Abstract

Researches on efficiency of new supplement when feeding young cattle grown for meat in the amount 9,8, 13,6 and 16,6 ml/kg of feed or 0,15, 0,20 and 0,25 ml counted per 1 kg of live weight, its positive effect on calves efficiency was determined as well allowing to increase it at 3.1-12.9%, decrease of feed spends at 3,0-9,2 % and weight gain prime cost at 2,7-10,4 %. On the basis of results of physiological researches it was determined that implementation of feed supplement in diets for calves increases dry matter digestibility at 2,3-4,2 %, organic one - at 2,1-3,7, protein - at 2,5-2,7, fat - 1,1-6,6, fiber - 3,2-7,9 and BES - at 2,4-2,7 %.