Influence of protein concentrate "Agro-Мatik" on physiological and zootechnical indicators of pullets of egg productivity

Introduction. One of the main priorities of the agro-industrial complex of the Russian Federation remains to increase the production of high-quality poultry products, including edible chicken eggs. However, there are a number of negative factors that limit the growth rate of production. Special importance is attached to the full-fledged feeding of highly productive poultry. Currently, the key factor underlying technological processes in industrial poultry farming remains the use of diets that are balanced in all important nutrients and biologically active substances and ensure satisfaction of physiological needs, contributing to high poultry productivity.

Materials and methods. Studies on poultry of the highly productive Haysex Brown cross were carried out in the conditions of the poultry farm of JSC Volzhskaya in the Volgograd region, Sredneakhtuba district, Zayar farm. The duration of scientific and economic experience on young chickens of an industrial herd was 120 days. The control group's poultry received a standard industrial diet. Pullets of the I – experimental group received a basic diet in which 50% of fullfat soy was replaced with protein concentrate "Agro-Matic", in the II – experimental group of chickens, full-fat soy was replaced in the diet with protein concentrate "Agro-Matic" by 75%, and in the III – group of experimental pullets, full-fat soy was replaced Agro-Matic protein concentrate is already 100%.

Results and conclusions. The increase in the digestibility of nutrients in the body of young chickens of experimental groups who received different levels of protein concentrate "Agro-Matic" as part of compound feeds was higher compared with control analogues. Thus, in the body of youngsters of the 1st, 2nd and 3rd experimental groups, compared with the control, the digestibility of dry matter was higher by 1.04%, 0.64% and 0.91%, organic matter – by 2.08%, 2.48% and 2.63%, crude protein – by 0.49%, 0.62% and 0.78%, crude fiber – by 0.58%, 0.66% and 0.78% and crude fat – by 0.12%, 0.22% and 0.31%. The average availability of amino acids from compound feed by the body of chickens of the experimental groups was also higher than that of control analogues by 0.34-0.71%. At the same time, the live weight also tended to increase in the I –, II – and III – experimental groups compared with the control by 0.83%, 1.63% and 2.25%. Thus, based on the conducted studies, it was revealed that the complete replacement of full-fat soy in the feed with protein feed concentrate "Agro-Мatic" contributed to better digestion of nutrients, digestibility of amino acids and an increase in the live weight of young animals.

1. Baykovskaya E. Yu., Manukyan V. A. Effect of Glycine Additives on Some Metabolic Indices in Laying Hens at a Low Level of Crude Protein in Compound Feeds. Poultry. 2023. № 3. Pp. 9-13.

2. Buryakov N. P., Zaikina A. S. Use of the Mineral Complex in Feeding Chickens of the Parent Flock of Broilers. Feeding of farm animals and fodder production. 2018. № 3. Pp. 35-52.

3. Vlasov A. S., Friesen V. G., Nikolaev S. I., et al. Use of amaranth cake in compound feeds for poultry. Feeding of farm animals and fodder production. 2023. № 5 (214). Pp. 3-14.

4. Kornilova V. A., Valitov Kh. Z., Zabelina M. V. Effect of the probiotic Basulifor on meat productivity of broiler chickens. Agrarian Science and Innovative Development of Animal Husbandry - the Basis of Ecological Food Safety: Collection of Articles. Saratov: OOO "Center of Social Agro-Innovations SSAU", 2021. Pp. 119-125.

5. Nikolaev S. I., Karapetyan A. K., Dmitrieva A. A. Improvement of Selection and Genetic Traits in Birds of Egg Crosses. Bulletin of the Ryazan State Agrotechnological University named after P. A. Kostychev. 2023. V. 15. № 2. Pp. 30-37.

6. Buryakov N. P., Zaikina A. S., Buryakova M. A., et al. Productivity and Digestibility of Nutrients in Parental Flock Chickens When Using a Phytobiotic. Veterinary medicine and feeding. 2023. № 5. Pp. 11-14.

7. Kornilova V. A., Polozyuk O. N., Zemskova N. E., Valitov Kh. Z. Productive Indicators of Broiler Chickens in the Use of the Heptran Feed Additive. Bulletin of the Don State Agrarian University. 2023. № 2 (48). Pp. 78-85.

8. Samofalova, O. V., Karapetyan, A. K., Nikolaev, S. I., et al. Efficacy of Using Non-Traditional Feed Ingredients in Feeding Broiler Chickens and Laying Hens. Poultry. 2023. № 2. Pp. 26-29.

9. Okolelova T. M., Engashev S. V., Struk A. N., Struk E. A. Efficacy of Organic Acids in Feeding Egg Hens of the Parent Flock. Poultry. 2022. № 4. Pp. 45-49.

10. Polozyuk O. N., Semenova O. O., Polozyuk E. S., et al. The influence of the biologically active substances on the indicators of natural resistance of the ducks. AIP Conference Proceedings: II International conference “Sustainable development: agriculture, veterinary medicine and ecology”. Ufa, Karshi: Bashkir State Agrarian University, 2023. V. 3011.

11. Fisinin V. I., Egorova T. A., Egorov I. A., et al. The use of mixed feeds of different nutritional values for meat chickens of the "Smena 9" cross. Science in Modern Conditions: From Idea to Implementation: Proceedings of the National Scientific and Practical Conference with International Participation. Ulyanovsk State Agrarian University named after P. A. Stolypin, 2022. Pp. 668-675.

12. Vlaicu P. A., et al. Feeding quality of the meat from broilers fed with dietary food industry by-products (flaxseed rapeseeds and buckthorn meal grape pomace). Sci. Papers Series D Anim. Sci. 2017. No 60. Pp. 123-130.