为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

通过建立能鉴别野毒和疫苗毒的多重PCR,确定试制的伪狂犬病基因缺失疫苗SA215对强毒潜伏感染的建立及随后被激活的影响.同时模拟了......

Pseudorabies is caused by pseudorabies virus (PrV), which is a member of family Herpesviridae, subfamily Alphaherpesviri......