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The study of HTCC hydrogel microsphere as an effective adjuvant for bivalent vaccine of Newcastle di
Avain influenza(AI)and Newcastle disease(ND)are two fatal diseases of poultry,which cause huge economic loss to poul......
通过病理剖检、病理组织学及电镜负染观察等方法对来自山东、河南等地的15只表现典型新城疫症状的发病鸵鸟的死亡原因进行系统研究......