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Localization, length and reproduction in single- and multiple-worm infections of Echinostoma revolutum (Trematoda) in the chick

Published online by Cambridge University Press:  06 April 2009

B. Fried  and
D. S. Alenick
B. Fried
Affiliation:
Department of Biology, Lafayette College, Easton, Pennsylvania 18042
D. S. Alenick
Affiliation:
Department of Biology, Lafayette College, Easton, Pennsylvania 18042
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Summary

Mono-metacercarial infections of Echinostoma revolutum in the domestic chick yielded 14- or 15-day-old worms that produced viable eggs, indicating that this species can self-fertilize under conditions which preclude cross-fertilization. In multiple infection studies, chicks were fed either 5 or 10 cysts and each infected chick contained 2–7 worms at necropsy 14 or 15 days later. Worms from multiple infections were mainly paired or clustered and they tended to locate more posteriorly in the intestine than single worms. Length measurements of single and multiple worms were similar. Both the number of eggs and the percentage of hatched eggs were considerably greater in multiple than in single infections.

Type
Research Article
Information
Parasitology , Volume 82 , Issue 1 , February 1981 , pp. 49 - 53
Copyright
Copyright © Cambridge University Press 1981

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References

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