Occurrence of tetracyclines in feedingstuffs – results of a two-year study within the official control of feed

Przeniosło-Siwczyńska, Monika; Patyra, Ewelina; Chyłek-Purchała, Maja; Kozak, Beata; Kwiatek, Krzysztof

doi:10.1515/bvip-2015-0079

Abstract

The paper describes a microbiological method for the detection of antibacterial substances in feedingstuffs. The method allowed detection of the main antibiotic groups, including tetracyclines. In 2013-2014, a total of 171 feed samples were analysed to determine antibacterial substances. Among the analysed samples 84 (49.1%) were suspected to contain tetracyclines. Out of the 84 feeds analysed using chromatography, 28 (33.3%) contained undeclared tetracyclines, which were identified at concentrations ranging from 0.32 mg kg^-1 to 48.98 mg kg^-1.

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Occurrence of tetracyclines in feedingstuffs – results of a two-year study within the official control of feed

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