Recently, there has been a need to find new ways to intensify the poultry industry thus maximizing the net yield. The inclusion of such protein-rich feed additives as maize gluten and Organic in the diet of broiler chickens in the amount of 3 % of mixed feed weight both separately and in the mixture increased the body weight gain by 8.8–19.2 %, survival rate – by 3.3 %, feed efficiency – by 0.23–0.26 of energy feed units or by 9.1–9.8 %, productivity index (European Production Efficacy Factor) – by 47.9–91.7 units or 35.5–36.7 %. Besides, their meat quality was improved: the content of dry matter, protein, fat and ash increased by 8.44–8.54 %; 1.56–1.6 %; 0.89–0.98 %; 0.16–0.2 %. The total tasting score of pectoral muscles increased by 5.8–6.3 %. Additional profit per head increased by 7.94–19.65 rubles, the level of profitability of broiler chicken cultivation increased by 5.37–13.14 %.

Abstract. The feeding factor is an important condition in ensuring the normal life of the sheep. Any external abnormalities cause metabolic stress, the parameters of the biochemical profile change, and the analysis of the development of internal organs in sheep in the post-embryonic period is of great scientific interest, since the absolute mass of organs increases during ontogenesis. Any external abnormalities cause metabolic stress. The parameters of the blood's biochemical profile change. Analysis of the development of internal organs in sheep in the post-embryonic period is of great scientific interest. This is because the mass of organs increases during ontogenesis. Purpose of research. To study the results of the influence of biochemical parameters of blood serum in young sheep on the formation of internal organs against the background of liposomal form of antioxidants with the inclusion of iodine. The research methods. The control group of young animal (rams) received the basic diet (BD). The experimental group received the BD with the addition of antioxidants in liposomal form with organic iodine content at the rate of 5 grams per head. The biochemical parameters of blood serum, the development of internal organs of young sheep and the correlation relationship of the obtained indicators were determined. Results research. Liver and pancreatic enzymes have a significant advantage in animals of the experimental group by 11.5–25.1 % (p ≤ 0.01). The significant advantages for renal enzymes were observed in experimental animals by 10.7 % (p ≤ 0.05) was stated. The total thyroxine content in young animals of the experimental group increases by 5.3 % (p ≤ 0.05). Organs of the gastrointestinal tract were characterized by increased weight. The relationship between the development of internal organs and serum enzymes were enhanced between hepatic and renal enzymes in connection with the development of digestive organs in young animals of experimental groups. The novelty. The liposomal form of antioxidants allows selective delivery of vital compounds to tissues in optimal concentrations. The effectiveness of its use in sheep farming has not been studied, and in connection with the prospect of increasing the production of lamb in the Republic of Crimea, the issue of obtaining environmentally friendly products with minimal use of veterinary drugs and chemical-based feed additives becomes urgent. Thus, the use of antioxidants in liposomal form is a significant step towards achieving this mission.

Introduction. Today’s feed market offers a variety of new products of plant and animal origin that increases the productivity of young sheep. Using feed supplements can help farmers to fully realize the genetic potential of wool-and-meat genotype sheep. Study objects and methods. We studied the effect of a whole milk replacer (skimmed powdered milk) and an ORGANIC high-protein feed supplement on the growth of young sheep and the quality of their meat. In particular, we determined the effect of starter feeds on the biochemical and morphological parameters of sheep blood at the Vtoraya Pyatiletka Breeding Farm, Stavropol Krai. Results and discussion. Substituting starter feeds with a whole milk replacer and an ORGANIC supplement for the standard feed in the diet of sheep aged 0–4 months increased metabolic energy (by 12.5%), crude protein (by 22.4 and 25.5%, respectively), lysine (by 24.8 and 21.4%, respectively), and methionine + cystine (by 31.0%). The starter feeds also led to higher live weight (by 29.6 and 33.7% (P ≤ 0.001)), absolute and average daily gain (by 24.6 and 29.1% (P ≤ 0.001)), slaughter weight (by 36.5 and 42.1% (P ≤ 0.001)), slaughter yield (by 2.50 and 2.96 abs.% (P ≤ 0.05)), and meat marbling (by 3.6 and 11.7%). The number of muscle fibers increased by 2.1 and 3.3%, respectively. Additional profits rose from 1761.5 to 2091.5 rubles per head and the product profitability reached 50.5–57.9%. Conclusion. The starter feeds containing a milk replacer and an ORGANIC feed supplement proved effective for sheep aged of 0–4 months in the suckling period, ensuring live weight of 39–40 kg and improving meat quality and productivity.

Introduction to the diets of sheep-producers of wool (Jalgin merino) and meat-wool directions (Russian meat merino) productivity in the non-breeding and breeding period of the feed additive «corn Gluten» in the amount of 28 and 56 and 28 and 66 g per unit per day contributes to an increase in crude and digestible protein by 5,0 and 10,0 %, lysine by 1,52 and 3,0 %, methionine with cystine – by 5,2 and 12,7 %. In addition, the digestibility of dry matter of the diet (in the non-breeding period) is significantly increased by 3,85-6,74%, by 13,4-15,11% – raw protein, by 3,19-5,03% – raw fat, by 5,92-7,21% – raw fiber, as well as nitrogen-free extractive fraction – by 1,90-3,52%. Feed additive «corn Gluten» promotes a significant increase in the volume of ejaculate in breeding period by 2,45,7% and 2,8-7,0%, sperm activity and an indicator of resistance to 0,3-0,6 and 0,5-0,6 points and 450-800 units, sperm concentration – by 1,7-3,0 and 1,7-3,5 %, ewes’ fertility – by 3,0-5,0 and 2,0-3,0 %. The additional income from the sale of sperm products with an increase in the protein level in the diets of sheep-producers Jalgin merino and Russian meat merino by 5% is 3,63-4,32, and by 10 % – 8,20-10,26 thousand rubles.

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