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仔猪关节液中分离的副猪嗜血杆菌的PCR鉴定

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摘要 副猪嗜血杆菌16S rRNA(M75065)上一段序列为目的片段合成了一对引物,以标准菌株为阳性对照,经过细菌DNA的提取,特异性和敏感性的测定,建立了副猪嗜血杆菌PCR检测方法。该方法能从关节液提取的细菌培养物中扩增出与预期的序列大小相同的821bp片段,而金黄色葡萄球菌、链球菌、多杀性巴氏杆菌、大肠杆菌和沙门氏菌扩增结果为阴性。另外,本方法对HPS的最低检出浓度达到了1.6×106cells/mL。琼脂糖凝胶电泳有特异性条带的送检相关公司测序,与已公布序列核苷酸同源性达到97%。
出处 《当代畜牧》 2013年第5期48-50,共3页 Contemporary Animal Husbandry
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