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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
Affiliation:
Department of Biology, Lafayette College, Easton, Pennsylvania 18042
D. S. Alenick
Affiliation:
Department of Biology, Lafayette College, Easton, Pennsylvania 18042

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
Copyright
Copyright © Cambridge University Press 1981

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References

REFERENCES

Beaver, P. C. (1937) Experimental studies on Echinostoma revolutum (Froelich), a fluke from birds and mammals. Illinois Biological Monographs 15, 196.Google Scholar
Foreyt, W. J., Samuel, W. M. & Todd, A. C. (1977) Fascioloides magna in white-tailed deer (Odocoileus virginianus): observations on the pairing tendency. Journal of Parasitology 63, 1050–2.CrossRefGoogle ScholarPubMed
Fried, B. & Butler, M. S. (1978) Infectivity, excystation and development on the chick chorioallantois of the metacercaria of Echinostoma revolutum. Journal of Parasitology 64, 175–7.CrossRefGoogle ScholarPubMed
Fried, B. & Grigo, K. L. (1975) Infectivity and excystation of the metacercaria of Echinoparyphium flexum (Trematoda). Proceedings of the Pennsylvania Academy of Science 49, 7981.Google Scholar
Fried, B. & Harris, K. R. (1971) Reproduction in single- and double-worm infections of Leucochloridiomorpha constantiae (Mueller, 1935) (Trematoda) in the chick. Journal of Parasitology 57, 866–8.CrossRefGoogle Scholar
Fried, B. & Roberts, T. M. (1972) Pairing of Leucochloridiomorpha constantiae (Mueller, 1935) (Trematoda) in vitro, in the chick and on the chorioallantois. Journal of Parasitology 58, 8891.CrossRefGoogle ScholarPubMed
Fried, B. & Weaver, L. J. (1969 a). Effects of temperature on the development and hatching of the trematode Echinostoma revolutum (Trematoda). Transactions of the American Microscopical Society 88, 253–7.CrossRefGoogle Scholar
Fried, B. & Weaver, L. J. (1969 b). Exposure of chicks to the metacercaria of Echinostoma revolutum (Trematoda). Proceedings of the Helminthological Society of Washington 36, 153–5.Google Scholar
Najarian, H. H. (1954) Developmental stages in the life cycle of Echinoparyphium flexum (Linton, 1892) Dietz, 1910 (Trematoda: Echinostomatidae). Journal of Morphology 94, 165–98.Google Scholar
Nelson, P. D. & Fried, B. (1979) Growth and reproduction in single- and ten-worm infections of Zygocotyle lunata (Trematoda) in the chick. Zeitschrift für Parasitenkunde 60, 97100.CrossRefGoogle Scholar
Nollen, P. M. (1971) Studies on growth and infection of Philophthalmus megalurus (Cort, 1914) (Trematoda) in chicks. Journal of Parasitology 57, 261–6.CrossRefGoogle Scholar
Paul, J. (1975) Cell and Tissue Culture. 5th ed. Edinburgh: Churchill Livingstone.Google Scholar
Senger, C. M. (1954) Notes on the growth, development and survival of two echinostome trematodes. Experimental Parasitology 3, 491–6.CrossRefGoogle ScholarPubMed
Sogandares-Bernal, F. (1966) Studies on American paragonimiasis IV. Observations on the pairing of adult worms in laboratory infections of domestic cats. Journal of Parasitology 52, 701–3.Google Scholar
Sturkie, P. D. (1965) Avian Physiology. 2nd ed. Ithaca: Cornell University Press.Google Scholar