两种肺吸虫对水貂寄生适应性致病性的研究

CHINESE JOURNAL OF VETERINARY MEDICINE(2000)

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Abstract
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.
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