《中国畜牧兽医》---唯一指定的官方网站 ›› 2015, Vol. 42 ›› Issue (6): 1597-1601.doi: 10.16431/j.cnki.1671-7236.2015.06.041

• 疾病防治 • 上一篇    下一篇

毛皮动物大肠杆菌对氟喹诺酮类药物及中药的耐药性研究

于杰1, 曲海娜2, 张灿1, 李文立1, 任慧英1   

  1. 1. 青岛农业大学动物科技学院, 青岛 266109;
    2. 山东省平度市职业中等专业学校, 平度 266700
  • 修回日期:2015-02-05 出版日期:2015-06-20 发布日期:2015-07-23
  • 通讯作者: 任慧英 E-mail:renren0228@sina.com
  • 作者简介:于 杰(1990-),女,山东莱阳人,硕士生,研究方向:兽医微生物学与免疫学,E-mail:516935933@qq.com 曲海娜(1980-),女,山东牟平人,硕士,研究方向:兽医微生物学与免疫学,E-mail:qu.haina@163.com
  • 基金资助:

    山东省现代农业产业技术体系毛皮动物产业创新团队(SDAIT-18-011-04)

Resistance of E.coli from Fur-bearing Animals to Fluoroquinolones and Compound Chinese Medicine

YU Jie1, QU Hai-na2, ZHANG Can1, LI Wen-li1, REN Hui-ying1   

  1. 1. College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China;
    2. Pingdu Occupation Secondary Specialized School, Pingdu 266700, China
  • Revised:2015-02-05 Online:2015-06-20 Published:2015-07-23

摘要: 本试验旨在了解毛皮动物源大肠杆菌的耐药性,有效控制毛皮动物细菌病的发生.针对14株分离自毛皮动物的大肠杆菌,采用PCR方法检测氟喹诺酮类耐药基因gyrA的携带情况,并对扩增得到的gyrA基因进行克隆测序和同源性分析;进一步针对gyrA基因制备地高辛标记的核酸探针,使用斑点杂交检测大肠杆菌对氟喹诺酮类药物的耐药情况;使用牛津杯法检测了大肠杆菌分离株对复方中药的敏感性.结果显示,PCR检出gyrA基因的阳性携带率为57.1%,斑点杂交检出耐氟喹诺酮类大肠杆菌的阳性率为50.0%,对复方中药的耐药率为28.6%.结果表明,毛皮动物对氟喹诺酮类药物的耐药性非常严重,对中药表现较高的敏感性,研究结果将为临床毛皮动物大肠杆菌病的防制提供依据.

关键词: 毛皮动物; 大肠杆菌; 氟喹诺酮类; 复方中药; 耐药性

Abstract: The aim of this study was to investigate the resistance to fluoroquinolones and compound Chinese medicine, and control colibacillosis in fur-bearing animals.14 E.coli strains isolated from diseased fur-bearing animals were detected by PCR for the fluoroquinolone-resistant gyrA gene,and then the PCR fragment of gyrA gene was cloned,sequenced and analyzed for homology.Afterwards,the fragment was labeled with digoxigenin as DNA probe for dot-blot hybridization detection.The resistance to compound Chinese medicine was detected by Oxford-cup tests.The results demonstrated that the positive rates of PCR and dot-blot hybridization were 57.1% and 50.0%,respectively.Only 28.6% of the E.coli strains were resistant to compound Chinese medicine.The results indicated that the resistance to fluoroquinolones in E.coli strains from fur-bearing animals was severe,however,the isolates were much more sensitive to compound Chinese medicine.The results would provide basis for control of colibacillosis of fur-bearing animals.

Key words: fur-bearing animals; E.coli; fluoroquinolone; compound Chinese medicine; antibioic resistance

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