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.

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 %.

The main grain feeds for animals in our country are still corn, wheat and barley. It is known that animals and poultry are competitors to humans in terms of grain consumption. Therefore, it is currently relevant in the fi eld of mono-gastric animals feeding to search for non-traditional feed sources. One of these is sorghum grain. The purpose of the work was to increase the live weight of young pigs when using low-cost compound feed with sorghum. We carried out a scientifi c and economic experiment at the LLC “TOPAGRO” enterprise in the Volgograd region on young pigs of three-breed hybrids. The animals of the control group received an farm diet with corn, and in the diet of the animals of the 1st, 2nd and 3rd experimental groups, 50, 75 and 100 % of corn was replaced with sorghum. In the feeding diet of pigs, partial or complete replacement of corn grain with sorghum of the variety Kamyshinskoe 75 contributed to an increase in the digestibility of nutrients compared with the indicators of analogues of the control group. The live weight of pigs on 119 days of experiment in the 1st experimental group was by 1,77 % higher than the control group, in the 2nd experimental group by 3,09 % (P > 0,95) and in the 3rd experimental group by 2,66 kg than in the control group. Control slaughter of animals has shown that the slaughter yield in the experimental groups was higher than in the control group from 0,53 to 0,91 abs.%. Thus, the replacement of corn grain with sorghum in the diets of pigs of the 1st, 2nd and 3rd experimental groups positively aff ected the digestibility of nutrients of compound feed and meat productivity of pigs.

Николаев Сергей Иванович д. с.-х. н., профессор, зав. кафедрой «Кормление и разведение сельскохозяйственных животных» РИНЦ SPIN-код: 8853-5448 Струк Михаил Владимирович к. с.-х. н., генеральный директор ЗАО «Птицефабрика Волжская» Струк Александр Николаевич д. с.-х. н., профессор, директор племрепродуктора ООО «Светлый» Карапетян Анжела Кероповна к. с.-х. н., доцент кафедры «Кормление и разведение сельскохозяйственных животных» РИНЦ SPIN-код: 4107-2721 Будтуев Олег Валерьевич к. с.-х. н., доцент кафедры «Ветеринарно-санитарная экспертиза, заразные болезни и морфология» РИНЦ SPIN-код: 2710-4987 Будтуева Ольга Дмитриевна аспирант ФГБОУ ВО «Волгоградский государственный аграрный университет», Волгоград, Российская Федерация

In the feeding of poultry, the search for new alternative feed sources and additives is promising. Such non-traditional feed sources are processed products from mustard and pumpkin seed oil. The purpose of the work was to study the use of non-traditional feeds, diff erent formulations of premixes and PVMC in the production of broiler meat. The studies were carried out on poultry crosses Kobb 500, HUBBARD ISA and Ross 308 under the conditions of the laboratory and clinical complex of the Volgograd State Agrarian University and poultry farms in the Volgograd region. (“Kumylzhenskaya”, AO “Poultry Farm Krasnodonskaya”). The introduction of Sarepta concentrate into the formula of compound feed for broiler chickens had a positive eff ect on the metabolic processes occurring in their body, as well as the positive eff ect on the growth of poultry and reduced feed intake. The use of Gorlinka concentrate instead of sunfl ower presscake in the intake of compound feed for broiler chickens led to the increase in the live weight of poultry and a signifi cant reduction in feed expenditures per 1 kg of live weight gain. The introduction of pumpkin seed presscake instead of sunfl ower in the feeding of broiler chickens contributed to the increase in the nutritional value of meat and improved taste qualities. The introduction of 1,5 %, 3,0 and 3,5 % of VolgaVit premixes into the broiler diet had the positive impact on the growth indicators and the quality of the resulting meat, which in turn aff ected economic effi ciency. The best result was shown by the 2nd experimental group of broilers, in which 3,0 % of the VolgaVit premix was introduced into the feed recipe. Studies on the use of non-traditional feed and diff erent formulations of premixes in the production of broiler meat have shown their positive eff ect on the growth rate of poultry of various crosses of poultry and meat quality indicators, which was also confi rmed by calculations of economic effi ciency and the results of production check.