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番鸭细小病毒病是由番鸭细小病毒引起3周龄内雏番鸭以喘气、腹泻及胰脏坏死和出血为主要特征的传染病，（俗称番鸭三周病），可造成番鸭大批死亡，即使耐过也成僵鸭，是目前番鸭养殖中危害最为严重的传染病之一。

最急性型：常无明显肉眼可见病变，仅仅在肠管黏膜见到急性

卡他性炎症，肠黏膜充血、出血。

急性型：病理变化较典型，呈全身败血现象。大部分病死鸭肛

使调围有稀粪粘附，泄殖器扩张、外翻；’心脏变圆 ，

‘’出死后6天以内病雏，其病势凶猛，病程

前题，只有数小时。多裝们管不表現先梁能執即效谢，创地无亡帶晚

到的債勤味消，很預麼、我同等变化不明記，偶见羽毛資立、選然，

基花时，两脚辰划，头须向一個扭曲。该型发病幸低，占整个將號的

4%~6%。

急性型：病例多发生于7-21 日龄，占整个病維数的90%以

上，稍推主要表现为精神委顿、羽毛蓬松、直立、两翅下垂、尾端向

子考曲，两脚无力，懒于走动，不合群，对食物吸而不吃。有不同程

能的拉稀现象，排出灰白色或淡绿色稀粪，内常混有絮状物，并常黏

男于肛门周围。噪端发组，跌间及脚趾边也有不同程度发维。呼吸用

力，后期常蹲伏于地，张嘴呼吸，临死前两脚麻痹，倒地抽搞，最后

亲竭死亡，该型病例无甩头和喜欢饮水现象，鼻孔无黏液流出，病程

2-4天。

亚急性型：病例较少，往往是由急性型随日龄增加转化而来。

主要表现为精神委顿，喜蹲伏，两脚无力，行走缓慢，排黄绿色或灰

白色稀粪，并黏附于泄殖腔周围。病程5~7天。此型死亡率随日龄

增加而渐减，幸存者多颈部、尾部脱毛，嘴变短，生长发育受阻，成

万仙鸭，该型病雏在6周龄鸭中也是极个别发生。

‘’特异治疗；在本病流行区域，或已被本病病毒污染的炕坊，雏番鸭群在出炕后24小时内，每雏番鸭皮下注射0.5毫升高免血清或卵黄抗体，保护率可达95%，对已经感染发病的同鸭群，每只皮下注射0.8--1.0保护率达80%，对已经感染发病早期的雏番鸭，每只皮下注射1.0--10-.5毫升，治愈率50%左右。

抗应激与防继发感染可以用；速补21饮水抗应激，饲料中可以添加呼独康+杆立克，连用3天

‘’点我免费咨询

‘’点击上方关注按钮；关注获取终身免费养殖指导，谈养殖，论行情，一起畅谈养殖天下事

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