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The influence of temperature on the succession of redial and cercarial generations of Fasciola gigantica in a snail host

Published online by Cambridge University Press:  06 April 2009

J. A. Dinnik  and
N. N. Diknik
J. A. Dinnik
Affiliation:
East African Veterinary Research Organization, Muguga, Kenya*
N. N. Diknik
Affiliation:
East African Veterinary Research Organization, Muguga, Kenya*
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Extract

Experiments on the larval development of Fasciola gigantica carried out under natural conditions have shown that at temperatures of 16° C. or less the rediae did not produce cercariae. The first-generation rediae, developed from the sporocyst, and all the rediae of subsequent generations produced only daughter rediae and did not change over to the production of cercariae as long as the low temperatures of the cold season lasted.

As soon as the cold season ended and the temperature of the water in the aquaria containing the infected snails rose to a mean maximum of 20° C. all the rediae switched from redial to cercarial production.

Type
Research Article
Information
Parasitology , Volume 54 , Issue 1 , February 1964 , pp. 59 - 65
Copyright
Copyright © Cambridge University Press 1964

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References

REFERENCES

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