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产后奶牛子宫内大肠杆菌的分离和血清型鉴定 被引量:4

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摘要 分析产后健康和子宫内膜炎奶牛子宫内大肠杆菌的分布和血清型与患病之间的关系。选取产后21~30 d的健康奶牛25头和子宫内膜炎奶牛35头,采集子宫黏液,常规方法对分离的菌株进行生化鉴定和O抗原血清型分型。结果显示,60头奶牛中43头(71.67%)分离到145株大肠杆菌,61株来自18头健康牛,84株来自患子宫内膜炎奶牛,说明大肠杆菌在产后21~30 d奶牛子宫内的分离率较高。血清学分型发现,96株菌分属于不同的15种血清型,3株发生自溶,46株未能确定,87.5%(84株)的菌株属于7种常见血清型,即O2、O5、O26、O44、O73、O86和O111,而O111(41.84%)和O44(27.55%)是最为集中的两种类型,O2,O8、O55和O86仅出现在患病奶牛中,O114、O126、O141仅出现在健康奶牛中。说明一些特异性的血清型可能与患病有关。
出处 《畜牧与兽医》 北大核心 2015年第3期104-106,共3页 Animal Husbandry & Veterinary Medicine
基金 国家科技支撑计划(2011BAD1913B02)
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