Prospects for the use of feed biologically active additive NAA in rearing of quails

Abstract

The purpose of the research was to determine the effectiveness of using different doses of a feed biologically active additive NAA when rearing of quails. In an experiment to determine the effectiveness of using different doses of feed additive, data on the dynamics of live weight, growth rate, livestock livability, and feed conversion in quails of breed of meat productivity Pharaoh were studied. The results of slaughter, the results of anatomical cutting and the weight of internal organs were analyzed. A veterinary and sanitary inspection of quail carcasses was carried out. The amino acid composition of muscle tissue has been studied. During the experiment, the microclimate of the poultry house where the experimental quails were housed was controlled; microclimate complied with generally accepted standards. The results obtained indicate that the most eff ective of the three tested dosages (0,5 ml, 1,0 ml and 2,0 ml per 1 kg of compound feed) turned out to be a dose of 1,0 ml per 1 kg of compound feed. With the introduction of 1,0 ml of feed additive per 1 kg of compound feed throughout the entire technological cycle of quails rearing, the live weight of the quails at 56 days of age was higher by 9,23 %, the average daily gain was higher by 9,50 %, and the livability of livestock was higher by 3,41 abs.%, slaughter yield by 1,7 abs.%, weight of all muscles by 7,5 g compared to the control group. A veterinary and sanitary examination of quail carcasses did not reveal any pathological changes. The smell was characteristic of fresh meat. The internal organs were located physiologically correctly. The positive effect of the feed biologically active additive NAA on the amino acid composition of muscle tissue has been established.