Lysine sulfate in compound feed for laying hens and the effectiveness of its use

Abstract

Lysine of feed proteins is incorporated into tissue proteins without any preliminary changes. It is an indispensable precursor in the synthesis of collagen, participates in the formation of carnitine, which plays an important role in fat metabolism. Lysine activates hematopoiesis, promotes calcium absorption, and has a benefi cial eff ect on protein metabolism and the state of the nervous system. It is used in the synthesis of proteins necessary for the formation of skeletal tissues and enzymes, is an important component of several peptide hormones. The purpose of the work was to study the eff ect of compound feed with diff erent levels of sunfl ower and soybean meal with the addition of lysine in the form of sulfate on the productivity of laying hens. The eff ect of lysine sulfate on the productivity of laying hens and the quality of eggs was studied. The physiological and biochemical justifi cation of the possibility of its use in compound feed of diff erent structures was given. With an increase in the level of soy meal input into the feed to 15 % and the inclusion of lysine sulfate in the feed, the fat digestibility increased by 0,6 abs.%, nitrogen-free extractive substances by 1,4 abs.%. Lysine in the form of sulfate had a positive infl uence on the digestibility and use of essential nutrients in all experimental groups. The results of the production check confi rmed the zootechnical data obtained in the experiments and showed the economic effi ciency of using lysine sulfate in compound feed for laying hens of the industrial herd of the egg productivity. The data obtained indicate the feasibility of using lysine sulfate in compound feed for laying hens.