PSIII-18 - Effect of Various Adaptogens on the Amino Acid and Fatty Acid Composition of the Longissimus Dorsi Muscle from Kazakh White-headed Bulls

Abstract: The study aimed to evaluate qualitative characteristics of beef from bulls upon the introduction of plant- and animal-originated adaptogens. Kazakh white-headed bulls were devided into four groups (n=12): group 1 (control) - the basic ration (BR); group 2 - BR + Rhaponticum carthamoides; group 3 - BR + pantocrin; group 4 - BR + drone homogenate. The analyzed components were introduced with drinking water in an amount of 0.01 mL per 1 kg of body weight. Samples of longissimus dorsi muscle from18-month bulls were selected for analysis. The research used gas chromatography to determine the fatty acid composition of beef and capillary electrophoresis to establish the amino acid content. It was found that tryptophan (326.7 mg%) in the beef from group 1 was less by 4.66% (P≤0.05) than in the beef from group 3 and by 5.35% (P≤0.01) than in the beef from group 4. The oxyproline concentration in the beef obtained from the control group was 58.67 mg%. The value is significantly greater (2.43-4.66%) than the indices derived from groups 2-4. The maximum difference (P ≤ 0.01) was observed in group 4 (basic ration + drone homogenate). The analysis of the fatty acid composition indicates an increase in palmitic acid (by 2.8%; P≤0.05), myristic acid (by 3.2%; P≤0.05), myristoleic acid (by 2.1%; P≤0.05) in the beef from group 4 compared to the control. Rhaponticum carthamoides and pantocrin in the ration improved accumulation of alpha-linolenic acid by 1.8 (P< 0.05) and 2.3% (P< 0.05) compared with the control group. Thus, the analyzed adaptogens optimized the fatty acid and amino acid composition of beef in varying degrees. The drone homogenate demonstrated the greatest effect.