仔猪致病性大肠杆菌野毒株的分离、鉴定及其致病新特点与防制对策  

Isolation and Evaluate of Piglets Pathogenic E.coli and Its New Pathogenic Characteristic and Control Measure

作　　者：胡钧[1] 苗玉和[1] 郝振国[1] 

机构地区：[1]辽宁省益康生物制品厂,辽阳111000

出　　处：《中国兽药杂志》2000年第5期11-13,共3页Chinese Journal of Veterinary Drug

摘　　要：1999年 4月 ,辽阳某猪场断乳仔猪 ( 60～ 90日龄 )发生以腹泻为主的传染性疫病 ,以多种药物治疗无效 ,计死亡 30余头 ,死亡率高达 50 %以上。取死亡仔猪病料分离出呈 β溶血及广谱耐药的致病性大肠杆菌。这表明目前已经出现了致病性大肠杆菌野外强毒株。April 1999,delactational piglets (60~90 day old) occared infactious disease in a feeding farm of pig LiaoYang. Chief sign of all sick piglets is diarrhoea,and treatment used many medicines is ineffective. Total of mortal piglets are more than 30,and they are more than 50% of all sick piglets.Pathogenic E.coli are isolated from specimens of mortal piglets.The pathogenic E.coli are β hemocytolysis and drug resistance with broad spectum. It shows that very virulent field strain of pathogenic E.coli have appeared at present.

关 键 词：致病性大肠杆菌 野外强毒株 断乳仔猪 分离 鉴定 

分 类 号：S852.612[农业科学—基础兽医学] S858.285.1[农业科学—兽医学]