Визначення біологічної цінності м’яса органічних курчат

Abstract

Abstract . Growing organic poultry, the issue of preventing young animals’ diseases is quite difficult, because the use of preventive antibiotics is prohibited. Poultry rearing should take place in accordance with the current «organic» legislation. The Law of Ukraine On basic principles and requirements for organic production, circulation and labeling of organic products 2496-VIII came into force on August 2, 2019 in Ukraine. The chemical composition of meat and the content of amino acids in the muscle tissue of the organic chicken meat-egg direction have been studied. The purpose of the research was to determine the possibility of organic growth of chickens and to study the effect of nutraceuticals on the quality and completeness of chicken meat. The experiment was conducted under organic farming conditions. The bird kept in the poultry houses free access to the pasture, receiving organic feed. The chickens of the study groups (D1 and D2) were administered natural prophylactic preparations - probiotic and postbiotic, respectively, and the control group chickens did not receive any preventive drugs. After slaughter the birds, performed a comparative assessment of the chemical consist, biological value of the meat of the test and control chickens, determined the amino acid score of the protein of the thoracic and femoral muscles. We compared the results of essential amino acid and nonessential amino acid with muscle tissue samples obtained from chickens in the control group, who did not use any preventive drugs. The use of both probiotics and postbiotics has been found to improve the amino acid content of poultry meat, with a better preservation of chickens and productivity. The first experimental group recorded a significantly higher content of nonessential amino acids, and the second experimental group replaced the amino acid and the second experimental group indicated higher content of essential amino-acids, compared to similar indicators in the control group (both in the thoracic and thigh muscles). Protein quality of organic chicken meat of both experimental groups is greater than that of control samples of chickens. Therefore, organic poultry farming with natural keeping and organic nutrition with preventive preparats, helps improve the biological value of chicken meat. Keywords: organic chickens, amino acids, meat, muscle, quality, completeness