畜牧与兽医2017，Vol.49Issue(4)：95-98,4.
皖北地区禽源大肠杆菌的血清型鉴定与耐药性分析
Serotype identification and drug resistance analysis of avian Escherichia coli in northern Anhui
摘要
Abstract
In order to determine the predominant serotype and drug resistance of pathogenic Escherichia coli in poultry in northern of Anhui province,31 strains of pathogenic E.coli were isolated and cultured from 64 samples.The serological identification of O antigen and drug resistance analysis showed that the 31 strains of pathogenic E.coli belong to serotypes O7s,O18,O88,O2,O1,O143,O4,O35,and O141,respectively.Among them,21 strains were classified into serotypes O7s (9 strains),O1s (7 strains),and O88 (5 strains),which represent the predominant serotypes of this region.The pathogenicity test showed that 83.9％ of these isolates were highly pathogenic,12.9％ were moderately pathogenic and 3.2％ were low pathogenic.There was no significant difference in pathogenicity among the strains of different serotypes.The strains showed different degrees of resistance to 11 kinds of antibiotics.The resistant rates were above 70％ against compound sulfamethoxazole,sulfamethazine and enrofloxacin.The resistant rates to amoxicillin,streptomycin,gentamicin,kanamycin,florfenicol and ciprofloxacin were above 16％.The resistant rates to cefotaxime,ceftizoxime and amilantine were below 10％.There were multi-drug resistance in these isolated strains,and more than 60％ strains were resistant to 4,5 or 6 kind of drugs.These results provide a scientific basis for the prevention and control of avian colibacillosis in poultry in northern Anhui province.关键词
家禽/大肠杆菌/血清型/耐药性Key words
poultry/Escherichia coli/serotype/drug resistance分类
农业科技引用本文复制引用
赵素华,范红结..皖北地区禽源大肠杆菌的血清型鉴定与耐药性分析[J].畜牧与兽医,2017,49(4):95-98,4.基金项目
安徽省自然科学基金(KJ2013B2950) （KJ2013B2950）
