中国寄生虫学与寄生虫病杂志

• 研究简报 • 上一篇    下一篇

肝片形吸虫囊蚴形成过程及其特点

方文,李天美,杨敬,刘榆华   

  1. 云南省大理州血吸虫病防治研究所,大理 671000
  • 出版日期:2016-12-30 发布日期:2017-01-10

Formation and Characteristics of Fasciola hepatica Metacercariae

FANG Wen,LI Tian-mei,YANG Jing,LIU Yu-hua   

  1. Dali Prefectural Institute of Research and Control on Schistosomiasis,Dali 671000,China
  • Online:2016-12-30 Published:2017-01-10

摘要:

将大理地区肝片形吸虫(Fasciola hepatica)毛蚴随机感染小土蜗(Galba pervia)10只,感染后第44天,首次捡获囊蚴10个,持续24 d,共捡获囊蚴495个。环境改变前后,8:00-24:00均未发现有尾蚴逸出或囊蚴结成,结囊以凌晨为主,囊蚴可附着于水中任何物体,并易从附着物上脱落。提示大理地区肝片形吸虫尾蚴逸出及结囊主要在凌晨进行。

关键词: 肝片形吸虫, 尾蚴, 囊蚴, 大理

Abstract:

The Fasciola hepatica miracidia were used to infect 10 Galba pervia in a random manner. Beginning from day 44  after infection on which 10 metacercariae were found and a total of 495 metacercariae found in 24 days. No signs of cercaria escape or metacercaria formation in the early morning observed during 8 ∶ 00-24 ∶ 00, regardless of the environmental change. Metacercaria formation occurred mainly in the early morning. The metacercariae could attach to any object in water, but were easy to detach themselves. The findings suggest that F. hepatica cercaria escape and metacercaria formation mainly occur in the early morning in Dali.

Key words: Fasciola hepatica, Cercariae, Metacercariae, Dali