陕西省致仔猪腹泻大肠埃希菌的血清型调查  

Prevalence of O Serogroups in Escherichia coli Isolated From Diarrheic Piglets in Shanxi Provine

作　　者：齐雪峰[1] 赵宝[1] 王春江[1] 郝艳阳[1] 赵献军[1] 

机构地区：[1]西北农林科技大学动物医学院,陕西杨凌712100

出　　处：《河北科技师范学院学报》2010年第4期8-11,共4页Journal of Hebei Normal University of Science & Technology

基　　金：西北农林科技大学"引进人才科研启动经费项目"(项目编号:01140409)

摘　　要：研究了陕西省致仔猪腹泻大肠埃希菌的流行血清型。对分离自腹泻仔猪粪便的131株疑似大肠埃希菌进行生化试验、溶血性试验分析,并对其血清型进行鉴定。121株分离菌符合大肠埃希菌的生化特征,鉴定率为92.37%;有溶血性的菌株占总分离株的81.82%(99/121),其中23株出现β溶血现象,76株出现α溶血现象,22株溶血现象不明显;血清型定型104株,占分离株的85.95%(104/121)。这些定型菌株涵盖了13种血清型,其中O80血清型分离率为28.85%(30/104),O141血清型为19.23%(20/104),O139血清型为9.62%(10/104);O6,O9,O20,O101各有6株;4株及以下的血清型的有O38,O45,O93,O138,O147,O157。血清型O80,O141和O139为陕西省致仔猪腹泻大肠埃希菌的优势血清型。To research the prevalence serotypes in Escherichia coli strains isolated from diarrheic piglets in Shaanxi province,131 isolated bacterials,biochemical profile,hemolytic reaction,and serogroup were determined,among which 121 correspond with that of E.coli（92.37%）.99 out of 121 E.coli isolates exhibited hemolytic reaction,and beta hemolysis,alpha hemolysis,negative was 23,76,and 22,respectively.A total of 104 of the 121 E.coli isolates were positive for O serogroup,and in descending order by O80（30/104）,O141（20/104）,O139（10/104）,O6（6/104）,O9（6/104）,O20（6/104）,O101（6/104）.Prevalence serotypes in Escherichia coli strains isolated from diarrheic piglets in Shaanxi province were O80,O141,and O139.

关 键 词：仔猪腹泻 大肠埃希菌 血清型 

分 类 号：S852.612[农业科学—基础兽医学]