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鸭副伤寒有何临床症状
更新时间： 2019-01-11 00:00:00  

经带菌卵感染或出壳雏鸭在孵化器内 感染时，病鸭常呈败血经过，几日龄内往往不显任何症状猝 然倒地而死。1 ~ 3周龄的病鸭常呈亚急性型经过,表现不 食，口渴，眼睑浮肿，流泪，眼周围羽毛湿润，流黏性鼻液。有时眼睛无法张开,双脚站立不稳，喜欢躲在角落。鸭群打 堆，颤栗，粪便呈粥样，严重时呈水样,常因肛门周围黏着的 粪便干涸而造成排便困难。严重者便呈水样。成年鸭表现下痢，便中常带血，病鸭形体消瘦，跛行或 瘫痪，病愈后常为慢性带菌者，能继续向体外排菌。

关键词： 副伤寒 临床 症状

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