Scientific Reports of the National University of Life and Environmental Sciences of Ukraine

Index of biological value of broiler chicken meat after experimental feeding of antibiotic danoxan-50

S. Tkachuk
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Abstract

Confirmation of the proper quality of meat is the level of its biological value, amino acid composition after the use of antibiotics during the treatment of poultry. Scientists have established a reverse trend in the ratio of essential to nonessential amino acids in the muscles under study, and also determined the amino acid that is limiting. Chickens-broilers of the American cross "Cobb-500" served as the material for the study. For the experiment, they were divided into 10 groups of 6 heads each (1, 2, 3, 4, 5 – experimental and 1, 2, 3, 4, 5 – control). Experimental groups of birds were orally given the drug Danoxan-50 at a dose of 5 mg / kg for 5 days. The birds of the control group were given purified water to drink. The biological value index or amino acid SCOR (the ratio of the SCOR of the protein of the product to the SCOR of the standard protein) was calculated according to the FAO / WHO scale. For this, the muscles of the thigh (quadriceps) and pectorals (pectoralis major) were selected. It was found that the limiting amino acids in the proteins of the breast and thigh muscles of broiler chickens are leucine and valine, since the amino acid rate of these amino acids is the lowest, both in the experimental and control groups, during the study period. Within 5 days of drinking the antibiotic Danoxan-50, the meat of broilers contained an insufficient amount of leucine and valine, which reduces its biological value. Producers of meat of broiler chickens treating poultry with this antibiotic must adhere to the instructions for its use, according to the terms of withdrawal of danofloxacin mesylate, the active ingredient of the antimicrobial drug

Keywords

broiler chickens, Danoxan-50, pectoral and femoral muscles, amino acid SCOR

Suggested citation
Tkachuk, S. (2021). Index of biological value of broiler chicken meat after experimental feeding of antibiotic danoxan-50. Scientific Reports of the National University of Life and Environmental Sciences of Ukraine, 17(6),177-187. https://doi.org/10.31548/dopovidi2021.06.015
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