Tracking Detection and Analysis of Drug Resistance of Chicken-derived Escherichia coli in a Broiler Farm |
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| Authors: | WANG Ying LI Xin-nan HAN Juan-zhu LIU Ying-zi WANG Hong-jun GAO Shen-yang WU Si-si ZHANG Li-bo ZHOU Tie-zhong |
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| Institution: | 1. College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China;2. Liaoning Province Veterinary Medicine Feed and Livestock Products Quality and Safety Testing Center, Shenyang 110016, China;3. College of Animal Husbandry and Veterinary Medicine, Liaoning Medical University, Jinzhou 121001, China;4. University of Edinburgh, Edinburgh |
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| Abstract: | From 2012 to 2014,300 chicken cloacal swab samples were collected from a broiler farm in Liaoning province,152 strains of chicken-derived Escherichia coli were isolated and identified.The 152 strains of chicken-derived Escherichia coli were detected on 14 kinds of veterinary antimicrobial drugs and 16 kinds of antimicrobial drugs for human by using trace dilution method,and reference to CLSI enterobacter decision criteria to determine.The results showed that chicken-derived Escherichia coli had obvious resistance to veterinary antimicrobial drugs (amoxicillin,ampicillin,enrofloxacin,trimethoprim-sulfamethoxazole,sulfafurazole,tetracycline) and antimicrobial drugs for human (piperacillin,ticarcillin,ciprofloxacin),the resistance rates were high.The resistance test results of isolated chicken-derived Escherichia coli comparing with the MIC value distribution of EUCAST wild type strains were same,but through comparing MIC value distribution,the results showed the isolates of spectinomycin,ampicillin,enrofloxacin,trimethoprim-sulfamethoxazole,cefalotin,cefuroxime,ciprofloxacin and tobramycin drugs MIC value moved to the right obviously,indicated that the antibiotic resistant strength of Escherichia coli increased gradually.The process of breeding and strict biosecurity measures should be taken scientifically to control diseases,and the antibacterial agents should be applied reasonably to control broiler farm production and propagation of bacterial drug resistance. |
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| Keywords: | broiler farm Escherichia coli tracking detection drug resistance analysis |
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