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).
机构:
London HSC, Div Vasc Surg, London, ON N6A 5W9, Canada
Univ Western Ontario, London, ON N6A 5W9, CanadaLondon HSC, Div Vasc Surg, London, ON N6A 5W9, Canada