The article presents the results of studies on the detection of mesophilic aerobic and optionally- anaerobic microorganisms, coli form bacteria, bacteria of the genus Proteus, Listeria monocytogenes, Salmonella, and Staphylococcus aureus from meat of broilers chicken. Determination of microbiological parameters was carried out in the pectoral muscles, thigh muscles, legs, wings of the control and experimental groups of chicken broilers of the аmerican cross "Cobb 500" after application with the therapeutic purpose of the veterinary drug "Baitril 10%" with the active substance enrofloxacin. The investigation of muscles of broiler chickens of control and experimental groups at 6, 12, 14 days after the last use of the drug, taking into account the period of carens of the drug. It was established that in the muscles of the control and experimental groups of bacteria of the genus Proteus, Salmonella, Listeria monocytogenes, Staphylococcus aureus were not found, which corresponds to the requirements of current regulatory legal acts. The excess of mesophilic aerobic and facultative anaerobic microorganisms was also not detected in the muscles of the control and experimental groups, however, it was found that in the broiler chickens in the experimental group, the number of MAFAnM was lower, compared to the number of MAFAnM of the control group, which was probably influenced by the presence in the muscle of the bird the residual amount of the active substance of the veterinary drug "Baitril 10%"
broilers chicken, enrofloxacin, meat, microbiological indicators, MAFAnM
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