Abstract
The article presents the materials obtained in experiments to study the feasibility of using a zeolite-containing additive “Permait” and poorly studied vitamin B13, The results of the experiments showed that the optimal dose of using a zeolite-containing additive in compound feeds is 2% of the dry matter of the feed. At this level, compared with the control, the growth energy of broiler chickens increased by 9.1-10.7 % compared to the control groups. The feeding of this drug contributed to an increase in slaughter of meat in the first experiment by 3.1%, in the second experiment - by 4.6%. Per 1 kg gain in live weight of experimental birds was spent from 2.02 to 2.56 kg of feed. The use of potassium orotate in the composition of complete feed contributed to an increase in the average daily growth of broiler chickens from the experimental groups only by 0.8 - 2.5% relative to the control (p <0.05). Higher rates are obtained with a dose of 10 mg. The slaughter yield of the half-gutted carcass of broiler chickens ranged from 78.1 to 81.2%, and the gutted - 64.7-66.8%.
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