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WANG Shuo;YANG Xue-yun;LI Jian-jun;RAN Duo-liang;WANG Zhi-cai
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王蒴;杨学云;李建军;冉多良;王治才
摘要: [目的]了解新疆奶牛乳房炎病例中无乳链球菌的感染状况和生物学特性,建立特异、快速检测方法.[方法]采集新疆4个不同地区规模化奶牛场乳房炎奶样,分别用鉴别培养基和绵羊血琼脂平板进行无乳链球菌分离培养、形态学观察、生化试验、PCR鉴定、致病性和常用抗生素敏感性试验.[结果]从检测出的139份乳房炎阳性奶样中分离出无乳链球菌24株.所分离菌株培养特性与生化反应符合该菌特性;依据无乳链球菌16S rRNA基因序列设计引物扩增所得PCR产物在405 bp处出现特异性条带;分离菌株对青霉素、氯霉素、庆大霉素、红霉素、万古霉素、克林霉素、头孢西丁、环丙沙星均敏感,对四环素、强力霉素、复方新诺明耐药.[结论]Granada选择性培养基培养和PCR扩增均可用于乳房炎奶样中无乳链球菌的特异、快速鉴定;新疆乳房炎奶样中无乳链球菌感染率为17.27;.
WANG Shuo;YANG Xue-yun;LI Jian-jun;RAN Duo-liang;WANG Zhi-cai. Isolation and Identification of Streptococcus Aagalactiae from Bovine Mastitis in Xinjiang[J]. .
王蒴;杨学云;李建军;冉多良;王治才. 奶牛乳房炎无乳链球菌的分离鉴定与特异、快速检测方法[J]. .
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http://www.xjnykx.com/EN/Y2014/V51/I7/1328