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来源:雅诚德英语网
Usually chickens suffered co-infection with Infectious bronchitis, Newcastle virus or Escherichia, and led to forced-breathing and increased mortality.
通常与传染性支气管炎病毒,新城疫病毒和大肠杆菌等病原协同感染,导致呼吸道症状加剧,使死亡率增高。
Usually chickens suffered co-infection with Infectious bronchitis, Newcastle virus or Escherichia, and led to forced-breathing and increased mortality.
通常与传染性支气管炎病毒,新城疫病毒和大肠杆菌等病原协同感染,导致呼吸道症状加剧,使死亡率增高。