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1. Oncomelania is the only intermediate host of schistosome.

2. AIM:To observe the lesion of tegument of Oncomelania snails treated with seed of Camellia Sinensis(SCS) .

3. Methods Systematic sampling method was used in field Oncomelania investigation, and laboratory and field simulating drowning methods were also performed to observe survival of Oncomelania.

4. Objective To study the distribution of Oncomelania hupensis with generalized negative binomial distribution (GNBD), and provide the theoretical support for quantitative study.

5. Moving of oncomelania with dam-break flood is the main cause for spreading schistosomiasis.

6. The miracidia can infect Oncomelania snails and the cercariae enable Apodemus agrarius and mice to develop infection.

7. Objective To study the distribution of Oncomelania hupensis with generalized negative binomial distribution, and provide the theoretical support for quantitative study.

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8. The researchers found that an increase in the length of time environmental conditions were ideal for the growth of both the Oncomelania snail and the Schistosome worm.

9. Conclusion There is ACP in the spreading blood cells of oncomelania hupensis.

10. Conclusions There was significant spatial genetic structure among snail populations of oncomelania hupensis widespread distributed in mainland China.

11. It suggests that the killing effect of Strophanthus divaricatus on oncomelania may be related to the energy metabolism pathways of parasites.

12. Objective To study the influence of drowning on survival of Oncomelania in order to provide evidences for the influence on the spreading of schistosomiasis due to the construction of Three Gorges Dam.

13. Methods By way of nicotinamide adenosine dinucleotide phosphate diaphorase (NADPH d) histochemical technique the continued sections of Oncomelania hupensis snails were investigated systematically.

14. Objective To explore the molluscieidal effect of Areca catechu on Oncomelania hupen - sis.

15. The experimental results showed that the function of 1 killing sperm and killing oncomelania was excellent.

16. Niclosamide was the only WHO recommended molluscacide, and was widely used to kill oncomelania to prevent and cure of snail fever.

17. Objective To study the molluscicidal activity, the influence on glycogen content of Oncomelania hupensis and the acute toxicity to zebra fish of the extract from Phytolacca americana Linn leaf.

18. It is very necessary for schistosomiasis control to study motion law of Oncomelania in river.

19. Niclosamide was the only recommended moUuscacide by WHO since 1972, and was widely used to kill oncomelania to prevent and cure of snail fever.

20. Sodium pentachlorophenate (Na PCP) has been used in China for years as an molluscacide to kill oncomelania, which is an intermediate host of Schistosome.

21. Conclusion:Arecoline hydrobromide may block the calcium channel of the smooth muscles in oncomelania foot.

22. The molluscicidal effect of the plant molluscicide HL to Oncomelania hupensis in laboratory and field investigation.

23. Conclusions Rongbao and Rongya have potent molluscicidal effects on Oncomelania hupensis, however, snail molluscicidal mechanism and toxicity to other creatures warrant further in-depth study.

24. Different concentration of Cnidium monnoeri (L. ) Cuss. extract by water and ethyl alcohol was used to study the effect of the herb on Oncomelania.

25. Objective Using RAPD technique to study genetic diversity of smooth-shelled Oncomelania hu- pensis in China and to gain more information on genome DNA level.