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禽类大肠杆菌病气囊炎表现如何
更新时间: 2019-01-11 00:00:00  

气囊炎。多发于5 ~12周龄的鸡,6〜9周龄为发病 高峰。一般由呼吸道侵入,在气囊内增殖。病鸡表现为咳 嗽,常发出咯略的声音,呼吸困难,后蔓延到肝脏、心脏、 输卵管等内脏器官,使病情加重,发生死亡。剖检可见气囊膜增厚,内有黄色干酪样物,肝表面及心 包膜有白色纤维性渗出物,卵巢变性、坏死,死亡率 为8% ~10%。

关键词: 禽类 大肠杆菌 气囊 表现 如何

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