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(题干)秋季,某养殖户树林下放养的1500只3月龄草鸡生长不良,腹泻、下痢、消瘦,贫血。近几天每天死亡十多只。磺胺氯吡嗉钠可溶性粉经饮水给药5天,未见效。首先可排除的疾病是( )A.组织滴虫病
B.鸡蛔虫病
C.鸡绦虫病
D.鸡球虫病
E.前殖吸虫病
如病死鸡肠黏膜水肿、出血,有大量粟粒大小的结节。该病的初步诊断是( )A.组织滴虫病
B.鸡绦虫病
C.毛细线虫病
D.鸡球虫病
E.鸡蛔虫病
如肠道有粟粒大小的结节,进一步检查应采用的方法是( )A.粪检虫卵
B.取结节压片镜检
C.分离细胞
D.接种鸡胚
E.间接血凝试验
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