Volume s1-29, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


Summary and Conclusions

  • 1.  Light plays an important role in the emergence of cercariae from their Chinese snail host, .
  • 2.  Temperature plays a less important role since in our experience no quantitative difference was observed between 15° and 35°C. Shedding from some snails occurred at 5°C. but the number of cercariae shed was small.
  • 3.  Water with pH values ranging from 6.6 to 7.8 seemed equally suitable for the shedding of cercariae.
  • 4.  Tap water and filtered river water were both suitable for shedding of the cercariae but distilled water was unfavorable.
  • 5.  Infected snails kept moist showed a greater readiness to shed cercariae than those kept dry.


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