Characterization of resistance patterns and genetic diversity of Escherichia coli isolated from geese in Northeastern China

文献类型： 外文期刊

第一作者： Sun, Wanying

作者： Sun, Wanying;Zhu, Xinyu;Xue, Yuan;Chen, Jianfei

作者机构：

关键词： Drug resistance; Escherichia coli; Goose; PFGE

期刊名称：POULTRY SCIENCE （ 影响因子：4.2； 五年影响因子：4.5 ）

ISSN： 0032-5791

年卷期： 2025 年 104 卷 5 期

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收录情况： SCI

摘要： This study investigates the correlation between antimicrobial resistance and PFGE (Pulsed-Field Gel Electrophoresis) typing in Escherichia coli (E. coli) strains isolated from geese on four farms in Heilongjiang Province. A total of 109 isolates were subjected to antimicrobial susceptibility testing using the K-B paper diffusion method with 15 different antimicrobial agents. PFGE typing was then performed for further analysis. The results indicated that more than 70% of the isolates were resistant to ampicillin, amoxicillin, imipenem, tetracycline, and doxycycline. Observing the presence of multidrug resistance, with 92.66% of the strains exhibiting resistance to 6 to 9 drugs. Among the 12 most resistant isolates, eight distinct PFGE patterns were identified, with strain similarity coefficients ranging from 40% to 60%. These findings highlight the presence of complex drug-resistant genotypes among E. coli strains from geese across all four farms, each displaying varying levels of resistance.

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