The contamination by antibiotics of stock-raising and poultry-farming products

The contamination of livestock and poultry products sold on the territory of Krasnoyarsk Region by residual amounts of antimicrobial drugs for the period from 2016 to 2019 was studied. The content of residual amount of antimicrobial preparations was taken into account in livestock products: meat (beef, pork, lamb meat, horse-flesh), by-products (liver), milk and dairy products (butter, sour cream) and in poultry production (poultry meat and eggs), as well as in honey. It was established that in livestock and poultry products sold on the territory of Krasnoyarsk Region, the remains of various antimicrobial drugs had been found. From January 2016 till December 2019, residual amounts of antibiotics such as tetracyclines, chloramphenicol, nitrophurans and their metabolites, streptomycins and penicillins were identified in food products. In the products the residues of antimicrobic medicine of chloramphenicol (levomycetin) prevail; it makes 40.74 %, on the share the nitrophuran medicines and their metabolites - 29.63 %, medicines of tetracycline group - 22.22 %. There are isolated cases of milk contamination with streptomycin and penicillin residues. From all contaminated products more often residual amounts of antimicrobic medicines revealed in dairy products - 40.74 %, in meat and meat products - 33.33 %, more rare in honey -14.81 % and in eggs - 11.11 %. In 0.63 % of the beef samples studied, residual amounts of nitrophurans and their metabolites were detected, in 0.61 % of the samples - levomycetin. Residual amounts of tetracycline group antibiotics (0.53 %), levomycetin (0.15 %), nitrophurans and metabolites thereof (0.26 %) were found in milk samples. Levomycetin residues contaminated 0.61 % beef, 0.15 % milk, 1.01 % eggs; nitrophurans and their metabolites contaminated 0.63 % beef and 0.26 % milk. The tetracycline group antibiotics were recorded in 0.53 % of the milk samples examined. Residual amounts of tetracycline antibiotics and nitrophurans were detected in honey. There have been isolated cases of milk contamination with streptomycin and penicillin. No residual amounts of antimicrobial preparations were found in the horse flesh and lamb meat.