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鸭乌龙线虫病临床症状如何
更新时间: 2019-01-11 00:00:00  

病鸭表现逐渐消瘦,腮及咽喉部肿胀, 初期为蚕豆大,以后逐渐增大,肿胀部悬垂如手指状,初期 较硬,以后逐渐变得松软,有时可见眼结膜因受肿胀压迫而 造成外翻。有时病症发生在腿部,首先也是蚕豆大的硬块,逐渐变成拇指样的结节,患部皮肤紧张,结节皮肤变薄,有 时可见皮肤上有几个小孔,挤压肿块有液体渗出。一些病 例可见肿块小孔内有虫体断片,随着患部进一步肿大,疼痛 加剧,病鸭不能站立,体质逐渐变弱,终归死亡。一些能耐 过的雏鸭,大多数发育迟缓。

关键词: 乌龙 临床 症状 如何

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