Infl uence of enzyme drug and vitamin U on the livability, growth rate and digestion processes of broiler chickens
Authors:   Federal State Budgetary Educational Institution of Higher Education “Russian State Agrarian University – Moscow Timiryazev Agricultural Academy”, Russia, Moscow, Kostomakhin N. M. , Baeva A. A. ,   Federal State Budgetary Educational Institution of Higher Education “North Caucasus Mining and Metallurgical Institute (State Technological University), Russia, Republic of North Ossetia – Alania, Vladikavkaz, Tedtova V. V. ,   Federal State Budgetary Educational Institution of Higher Education “North Caucasus Mining and Metallurgical Institute (State Technological University), Russia, Republic of North Ossetia – Alania, Vladikavkaz, Baeva Z. T. ,   Federal State Budgetary Educational Institution of Higher Education “North Caucasus Mining and Metallurgical Institute (State Technological University), Russia, Republic of North Ossetia – Alania, Vladikavkaz, Gazzaeva M. S. ,   Federal State Budgetary Educational Institution of Higher Education “Gorsky State Agrarian University”, Russian Federation, Vladikavkaz, Kozhokov M. K. ,   Federal State Budgetary Educational Institution of Higher Education “Kabardino-Balkarian State Agrarian University named after V. M. Kokov”, Russia, Kabardino-Balkarian Republic, Nalchik, Gappoeva V. S. ,   Federal State Budgetary Educational Institution of Higher Education “North Ossetian State University named after K. L. Khetagurov”, Russia, Republic of North Ossetia – Alania, Vladikavkaz
Published: September 2024

S-methylmethionine (vitamin U) can successfully eliminate methionine deficiency in the diet by using its methyl groups to synthesize choline and creatine. Vitamin U has a synergistic effect with a wide range of biologically active substances, including exogenous enzymes. The purpose of the research was to investigate the eff ect of the enzyme drug Bio-Feed-Beta and S-methylmethionine on the livability, growth rate, activity of digestive enzymes, as well as the digestibility and assimilation of nutrients in corn-soybean type compound feed in broiler chickens. According to the results of the first experiment, broilers of the 2nd experimental group, which received MEC Bio-Feed-Beta at a dose of 350 g/t of compound feed, had the best livability of livestock and live weight gain. According to these indicators, they exceeded the control by 4.0 abs.% and 8.6 % (P > 0.95). During the second experiment, the highest growth rate was demonstrated by broilers of the 2nd experimental group, which received MEC Bio-Feed-Beta in the dose of 350 g/t of compound feed and S-methylmethionine in an amount of 30 g/t of compound feed. They signifi cantly (P > 0.95) exceeded in absolute growth the control group by 10.9 %. During the second scientifi c and economic experiment, the combined inclusion of MEC Bio-Feed-Beta and S-methylmethionine in corn-soybean diets of chickens ensured a significant (P > 0.95) increase in the activity of cellulases in the contents of the muscular stomach of chickens of the 2nd experimental group by 14.2 %, lipases by 10.2 % and amylases by 10.2 % compared to the control group. According to the results of the second metabolism experiment, the combined addition of the tested drugs provided the signifi cant (P > 0.95) increase in the digestibility coeffi cients of dry matter by 4.09 abs.%, organic matter by 4.13 abs.%, crude protein by 3.76 abs.%, crude fi ber by 3.53 abs.% and nitrogen-free extractive substances by 4.64 abs.% in broiler chickens of the 2nd experimental group, as well as an increase in the daily nitrogen deposition in the body by 8.67 % (P > 0.95).