幼鹅大肠埃希氏菌的分离与鉴定

从重庆市4个县(市)24户的36只病死幼鹅中,分离到31株大肠埃希氏菌,经致病性试验、生化特性及药物敏感性试验,表明其中24株为致病菌,致病菌分离率为66.7%;致病菌株的生化特性符合大肠埃希氏菌的生化特性;所有菌株对丁胺卡那霉素、妥布霉素高度敏感,对氨苄青霉素、红霉素、氟哌酸、链霉素、复合磺胺、四环素、万古霉素不敏感,部分菌株对氯霉素、庆大霉素、卡那霉素中度敏感,说明大肠埃希氏菌对常用抗生素药物的抗药性日趋严重。

Isolation and identification of Escherichia coli from the Young geese

There were31stains of the E.coli which were isolated from36dead young geese of24peasant families from4counties of chongqing district.The bacteria were tested with pathogenicity,biochemistry and sensitivity of drugs.The result showed that24bacteria were pathogene and escherichia coli.The pathogene was high sensitive to amikacin and tobramycin,and nonsensitive to ampicillin,erythromycin,norfloxacin,streptomycin,cosulfanilamides,tetracycline and vancomycin.Some strains were medium sensitive to chloromycetin,gentamicin and Kanamycin.The drug resistance of escherichia coli was serious to the antibiotics in common use.