精品（五十）禽绦虫病课件

（五十）（五十） 禽绦虫病禽绦虫病 绦虫是多种禽类的内寄生虫绦虫是多种禽类的内寄生虫 ，种类多，形态各异，大小悬殊，种类多，形态各异，大小悬殊 ，小的仅几毫米，大的可达几十，小的仅几毫米，大的可达几十 厘米。鸡、鸭、鹅、鸽、鹌鹑、厘米。鸡、鸭、鹅、鸽、鹌鹑、 孔雀、野鸭等多种禽类均可发病孔雀、野鸭等多种禽类均可发病 。 如如鹅剑带绦虫鹅剑带绦虫 寄生于鹅肠中的大型绦虫寄生于鹅肠中的大型绦虫 鸡赖利绦虫鸡赖利绦虫 【生活史】【生活史】 成虫在小肠内自体受精后，孕节脱落，随粪便排出，污染成虫在小肠内自体受精后，孕节脱落，随粪便排出，污染 环境，当虫卵被其中间宿主环境，当虫卵被其中间宿主甲虫、家蝇等吞食后，发育甲虫、家蝇等吞食后，发育 为似囊尾蚴，当禽啄食这些中间宿主后，便被感染。为似囊尾蚴，当禽啄食这些中间宿主后，便被感染。 【临床特征】【临床特征】 幼禽发病严重，成禽发病轻幼禽发病严重，成禽发病轻 食欲减退，消瘦，精神萎靡不振，食欲减退，消瘦，精神萎靡不振， 羽毛松乱，运动失调，严重时死亡羽毛松乱，运动失调，严重时死亡 禽绦虫病 病禽多排出灰白色黏液性稀便，病禽多排出灰白色黏液性稀便， 便中有绦虫节片便中有绦虫节片 或粪便中带有泡沫或粪便中带有泡沫 【大体病变】【大体病变】 可见虫体吸附于小肠黏膜上，可见虫体吸附于小肠黏膜上， 寄生部位增生，黏膜出血（鸭）寄生部位增生，黏膜出血（鸭） 寄生于小鸡肠道中的绦虫寄生于小鸡肠道中的绦虫 【防治要点】【防治要点】 经常清扫禽舍和运动场地经常清扫禽舍和运动场地 ，用菊酯类杀虫药杀灭中间宿，用菊酯类杀虫药杀灭中间宿 主。幼禽与成禽分开饲养，有主。幼禽与成禽分开饲养，有 计划地定期驱虫。病禽常用氯计划地定期驱虫。病禽常用氯 硝柳胺、吡喹酮、硫双二氯酚硝柳胺、吡喹酮、硫双二氯酚 等药物进行治疗。等药物进行治疗。 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