Possible replacing antibiotics with natural feed supplements in poultry farming

Among veterinary drugs and feed additives, antibacterial agents occupy a special place, which are used not only for the prevention and treatment of bacterial diseases, but also as powerful growth stimulants. It is known from numerous publications that antibiotics used in the poultry industry pose a serious threat to human health. This article presents the results of studies of the effectiveness of the feed additive FRA® S12 and dietary supplement "Lactusil", as an alternative to the antibacterial drug of the class of cephalosporins, when growing broiler chickens. Feed additive FRA® S12 and dietary supplement "Lactusil" had the most significant effect on the meat productivity of chickens in II and III experimental groups in comparison with the antibiotic drug (test I group). The excess in live weight was 3.09 and 2.58%, the slaughter yield - by 0.9 and 0.4%, the weight of the pectoral muscles - by 16 and 10 g, the yield of grade I carcasses - by 6.9 and 6.2% ... The level of erythrocytes in the blood of chickens in test groups II and III was higher than in test group I by 19.87 and 15.06%, the hemoglobin concentration - by 6.37 and 5.42%, the hematocrit content - by 3.28 and 2, 83. The results obtained substantiate the possibility of replacing antibiotic drugs when growing broiler chickens with alternative ones: feed additive FRA® S12 and dietary supplement "Lactusil".