Life Cycle of Cyathocotyle caecumalis sp. nov
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摘要: 报道鸭盲肠杯叶吸虫的生活史, 证实纹沼螺Parafossarulus striatulus和泥鳅Misgurnus auguillicaudatus是该吸虫的第一、二中间宿主。虫卵在2028℃和适当光照条件下21d孵出毛蚴;毛蚴侵入纹沼螺后发育为胞蚴和尾蚴, 并从62d开始自螺体向外逸出尾蚴;尾蚴侵入泥鳅体表和肌肉内经10d结成囊蚴;家鸭口服囊蚴后3d, 囊蚴在鸭盲肠内发育为成虫并向外排卵。整个发育周期持续96d。Abstract: This article has firstly reported the life cycle of Cyathocotyle caecumalis sp.nov and confirmed that Parafossarulus striatulus and Misgurnus auguillicaudatus served as the first and second intermediate host of C.caecumalis sp.nov, respectively.At room temperature of 20-28℃, miracidiia hatched from eggs after 21days of incubation and developed into sporocyst in the snail host, It was found that cercaria emerged from the snail host after 62days.Metacercariae may encysted on the surface or within the muscle of loach 10days later.Ducks infected with metacerariae orally ovulated the mature eggs in the feces 3days later.The total life cycle of C.caecumalis sp.nov lasted 96days.
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Key words:
- C.caecumalis sp.nov /
- life cycle /
- Parafossarulus striatulus /
- loach /
- ducks
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