摘要
目的:比较三平正肺吸虫(Ec.)与卫氏肺吸虫(Pw),在水貂体内发育、分布、寄生适应性及致病性,并确定其宿主性质。方法:取2种肺吸虫囊蚴或童虫,经口感染水貂,以任氏液逸出法分离组织内各型童虫[1],或直接剖取肺、肝虫囊内虫体,比较2种虫的检出率、各型虫体、寄生部位及致病情况。结果:三平正肺吸虫在貂体发育呈多态性,成虫寄生于肺脏为主,大型童虫在胸腹腔及内脏居多数,小型童虫则在胸腹肌内,卫氏肺吸虫在貂体仅见滞育童虫,多数分布在貂之胸腹肌,部分如芝麻大童虫在肝、肺及胸腹腔中。结论:Ec.在貂体寄生适应性佳,貂为终宿主。Pw.寄生适应性差,貂为转续宿主。
Objective:A comparision research on parasitic adaptability, development and distribution of Ec.and Pw.in minks. Thus to provide the basis for the experimental research of paragonimiasis.Methods:dissecting Longquan potamons and isolating metacercaria making minks to be infected via mouth.Results:the rate of polymorphism Ec.worms was higher than that of Pw.82.93% of adult worms were detected from lung cysts of minks.A few large of small immature worms were found in the body cavites.Besides,some adult worms of Ec.were found in the minks infected via mouth with immature worms in the early stage.Pw.worms,which were stunted midget immature worms,were found in the muscle and body cavities.Conclusion:Minks are good adaptable definitive hosts for Ec.But Pw.does not adapt to development.Minds are the paratenic hosts.
出处
《中国兽医杂志》
CAS
北大核心
2000年第2期5-7,共3页
Chinese Journal of Veterinary Medicine
基金
WHO肺吸虫病研究中心协作课题
关键词
寄生适应性
水貂
致病性
肺吸虫
Euparagonimus cencopiosus(Ec.)
Paragonimus westerman(Pw.),Parasitic adaptability Animal model
