Recently, the oil processing industry has been actively developing in the Lower Volga region, the by-products of which are presscake and extracted meal. The purpose of our research was to study the infl uence of feeding local non-traditional feed sources as part of compound feed on the live weight of broiler chickens and rainbow trout. Studies on broiler chickens of the cross Ross 308 were carried out at the Research Center for the safety and eff ectiveness of feed and Additives of the Volgograd State Agrarian University. The chickens of the control group received compound feed with sunfl ower presscake, and in the diet of poultry of the 1st, 2nd and 3rd experimental groups sunfl ower presscake was replaced with amaranth presscake – 50, 75 and 100 %, respectively. Scientifi c and economic experiment on the study of the possibility of including protein concentrate Gorlinka in compound feed for rainbow trout was carried out at the enterprise SO Kalmykova I. O. The fi sh of the control group received compound feed with sunfl ower extracted meal, and individuals of the 1st, 2nd and 3rd experimental groups received compound feed, in which sunfl ower extracted meal was replaced by Gorlinka concentrate – 50, 75 and 100 %, respectively, by groups. It was concluded on the base of conducted studies that the introduction of amaranth presscake into the formula of compound feed had a positive eff ect on the meat productivity of broiler chickens of the cross Ross 308. So, during the period of the experiment the live weight of poultry was increased by 2,15–5,26 %, and the slaughter yield increased to 0,29 abs.%. The use of mustard protein-containing concentrate Gorlinka in compound feed for rainbow trout contributed to the increase in the total live weight gain by 2,83–6,93 %.

Poultry farming in the Russian Federation is one of the key branches of animal husbandry, providing the population with dietary and high-calorie food products such as meat and eggs. In this regard, the production of the maximum amount of competitive high-quality products is possible only under conditions that take into account the biological characteristics of the poultry, its physiological state, the type of productivity and the infl uence of environmental factors on it. The main factor in increasing the productivity of poultry is a rational and balanced feeding system. In the feeding of poultry, the search for new alternative feed sources is promising in the fi eld of feeding. One of such non–traditional feed sources is the product of processing amaranth seeds into oil as amaranth cake. We carried out scientifi c and production experiments at the Research center for the safety and eff ectiveness of feed and additives at the Volgograd State Agrarian University on broiler chickens of the cross Ross 308 and laying hens of the cross Hisex Brown. The poultry of the control group, both in the fi rst and in the second experiments received compound feed with sunfl ower presscake, and in the diet of poultry of the 1st, 2nd and 3rd experimental groups 50, 75 and 100 % sunfl ower presscake was replaced with amaranth presscake. Replacing sunfl ower presscake with amaranth presscake in compound feed for broiler chickens allowed to increase the live weight by 2,15–5,26 %, increase the slaughter yield of carcasses by 0,15 -0,29 abs.% and reduce feed expenditures per unit of live weight gain by 2,08–4,98 %. The inclusion of amaranth presscake instead of sunfl ower presscake in the formula of compound feed for laying hens allowed to increase the number of laid eggs by 0,52–1,54 % and their weight by 0,50–1,45 %, while there was a decrease in the expenditures of feed for 10 pieces of eggs and 1 kg of egg mass by 0,75–1,50 % and 0,93–2,80 %. Thus, the replacement of sunfl ower presscake with amaranth presscake in compound feed for laying hens and broiler chickens had a positive infl uence on the productive parameters of poultry.