鸡源致病性大肠埃希氏菌的耐药性

STUDY ON ANTIBIORESISTANCE OF CHICKEN Escherichia coli

研究了分离于江苏地区若干鸡场的29株鸡源致病性大肠埃希氏菌的耐药性，结果表明，所有菌株对CFZ、TOB敏感，耐药率为0；对NEO、KAN、GEN、PIP耐药率均为6．89％；CTN，13．79％；CMP，34．48％；对STR、COS、VAN、ERY耐药率较高，分别为65．52％、72．42％、82．76％、93．10％。待检菌株多药耐药现象严重，有27株（93．10％）对2种或2种以上药物耐药，多药耐药率从16．67％～83．33％。耐药型主要为COS－CMP－STR－ERY－VAN；STR－ERY－VAN；COS－STR－ERY－VAN；COS－ERY－VAN；ERY－VAN；耐药菌分别占待检菌株的17．24％、13．79％、13．79％、10．35％及6．90％。

The antibioresistance of 29 Escherichia coli strains isolated from several chicken farms in Jiangsu Province was studied. The results showed high levels of resistance (from 65. 52％ ~ 93. 10％ ) to STR, COS, VAN and ERY. Medium frequencies of resistance (13. 79％, 34. 48％ )were noted to CTN and CMP. For resistance to NEO, KAN, GEN and PIP,the frequencies of resistance were all low (6. 89％ ). No resistance was observed to CFZ and TOB. A significant percentage of isolates (93. 10％, 27/29) were resistant to at least 2 antimicrobial agents,the rates of multiresistance were from 16. 67 ％ to 83. 33 ％. The most frequent antibioresistance types were COS-CMP-STR-ERY-VAN,STR-ERY-VAN,COS-STRERY-VAN, COS-ERY-VAN and ERY-VAN, the rates of resistant strains were 17. 24％,13. 79 ％, 13. 79％, 10. 35 ％, 6. 90％,respectively.