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黄牛结节性皮肤病的分子诊断及防控措施 被引量:2

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摘要 近年在云南多地流行一种以皮肤广泛性结节为特征的牛传染病,部分患牛出现死亡,给养殖户造成重大经济损失。为尽快采取有效防控措施,有必要明确是否为结节性皮肤病病毒(LSDV)感染。本研究从红河州某黄牛养殖场采集11份病牛及康复牛的皮肤结节组织样本,针对LSDV基因组5′端基因设计特异性引物进行PCR扩增,随后对扩增产物采取TA克隆、DNA测序及在线比对分析。结果显示,有2份样品扩增得到与预期大小相符的基因片段,该序列与GenBank收录的LSDV参考毒株同源性为98.0%~100.0%。结果证实该牛场发生牛结节性皮肤病,随后建议养殖户给未染疫牛紧急接种绵羊痘疫苗,取得良好的防控效果。
出处 《云南畜牧兽医》 2023年第2期17-19,共3页
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