1. The morphological characteristics of the cercaria are described.

2. Germ balls in daughter sporocyst, suckers of the cercaria, germinal primordia and unicellular gland of the cercaria contain DNA positive substances.

3. Sufferred from disease of pig bursa cercaria to there are those symptoms?

4. Experiments in vitro using agar and experiments in vivo were performed to investigate the effects of the herbal medicine on prevention of Schistosoma japonicum cercaria entering the host body.

5. Objective :To improve technological process of fabrication to schistosoma japonicum cercaria specimen.

6. The functions of the above substances in the acetabular glands of cercaria during the Process of penetrating host's skin were discussed in the tekt.

7. This paper deals with the relationship between the ultrastructural changes and physiological adaptations during transformation from cercaria to skin-phase schistosomula of S. japonicum.

8. Objective To improve new technological process of making Schistosoma japonicum cercaria specimen.

9. To study the effects of Eomecon Chinanthe Alkaloids ( ECA ) on molluscicidal and against Schistosoma japonicum cercaria.

10. Objective To evaluate the protective effect and acute skin irritating reaction of anti cercaria emollient cream (ACEC) from infection of S.

11. Methods The direct compression was used to check the cercaria of C. sinensis in Spiral shell's.

12. Such method and apparatus can also be used to kill the cercaria and miracidium of Schistosoma japonicum in the water contaminated by Schistosomiasis disease.

13. Conclusion The in vitro passage cultivation of S. japonicum cercaria cells has been successful to the 5th generation and the cultured material could be used in the immunological research.