›› 2013, Vol. 40 ›› Issue (10): 211-215.

• 疾病防治 • 上一篇    下一篇

不同动物源大肠杆菌的耐药性调查

贺丹丹1, 黄良宗2, 陈孝杰1, 杨铜1, 饶丽丽1, 罗东妹1, 陈佩玲1, 彭辉1, 刘健华1   

  1. 1. 华南农业大学兽医学院, 广东省兽药研制与安全评价重点实验室, 广东广州 510642;
    2. 佛山科学技术学院, 广东佛山 528000
  • 收稿日期:2013-03-27 出版日期:2013-10-20 发布日期:2013-12-19
  • 通讯作者: 刘健华 E-mail:jhliu@scau.edu.cn;Tel:020-85283824
  • 作者简介:贺丹丹(1985-),女,河南人,硕士,研究方向:兽医药理学与毒理学。
  • 基金资助:
    国家自然科学基金(31272610)。

Investigation of Antibiotic Resistance among Escherichia coli Isolated from Different Animals

HE Dan-dan1, HUANG Liang-zong2, CHEN Xiao-jie1, YANG Tong1, RAO Li-li1, LUO Dong-mei1, CHEN Pei-ling1, PENG Hui1, LIU Jian-hua1   

  1. 1. Guangdong Key Laboratory for Veterinary Drug Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China;
    2. Foshan University, Foshan 528000, China
  • Received:2013-03-27 Online:2013-10-20 Published:2013-12-19

摘要: 为了解畜禽源大肠杆菌的耐药状况,2011—2012年从患病和健康食品动物中分离鉴定大肠杆菌935株,包括健康猪源606株、患病猪源114株、患病鸡源51株、患病水禽源(鸭和鹅)164株。试验采用琼脂稀释法测定了不同动物来源的大肠杆菌对15种抗菌药物的敏感性。结果发现,大肠杆菌耐药严重,对大部分药物的耐药率超过70.0%,其中氨苄西林、复方新诺明和四环素的耐药率均达到了80.0%以上;仅对头孢西丁、黏菌素和阿米卡星较敏感,但患病水禽源大肠杆菌对阿米卡星的耐药率达到了52.4%,明显高于其他动物。健康畜禽源大肠杆菌对多数抗菌药的耐药率低于患病畜禽源大肠杆菌,表明抗菌药物的使用增加了病原菌对第3代头孢类药物和氟喹诺酮类药物的耐药率,势必增加临床治疗难度。

关键词: 大肠杆菌; 耐药性; 多重耐药性

Abstract: To determine the resistance of Escherichia coli strains to kinds of antimicrobials, a total of 935 Escherichia coli isolates were collected from diseased and healthy food-producing animals during 2011 to 2012, which contained 606 E.coli strains from healthy swine, 114 from diseased swine, 51 from diseased chicken and 164 from diseased water fowl(duck and goose).The susceptibility of 935 isolates to 15 antimicrobials were determined by agar dilution method. The results showed that the resistance of the isolates was serious.The resistance rates to most of the antimicrobials were over 70.0%, especially ampicillin, sulfamethoxazole/trimethoprim and tetracycline, with resistance rates of over 80.0%. There was a relative low frequency of cefoxitin, colistin and amikacin among these isolates, except that the resistance rate(52.4%) to amikacin in Escherichia coli from diseased water fowl was higher than other animals distinctly. The resistance rates of the isolates from diseased animals to most of the antimicrobials were significantly higher than those from healthy animals, which indicated that the use of antimicrobials increased the resistance rates of the isolates to quinolones and the third cephalosporinases, that would increase the difficult of the clinical treatment.

Key words: Escherichia coli; antibiotic resistance; multiple resistance

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