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Eimeria acervulina and E. mivati: oocysts, life-cycle and ability to develop in the chicken embryo

Published online by Cambridge University Press:  08 November 2011

C. C. Norton  and
L. P. Joyner
C. C. Norton
Affiliation:
Central Veterinary Laboratory, MAFF, New Haw, Weybridge, Surrey
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Summary

Three strains of Eimeria acervulina and 3 strains of E. mivati were compared. E. acervulina was characterized by the ovoidal shape of its oocysts and their rapid sporulation, small first-generation schizonts containing few merozoites, and its inability to complete development in the chorio-allantois of chicken embryos. E. mivati had more rounded oocysts with a Longer sporulation time, larger first-generation schizonts containing twice as many merozoites and it developed readily in the chorio-allantois. Pre-patent periods were variable but generally shorter with E. acervulina. A strain of E. mivati attenuated by repeated embryo passage showed a reduced pre-patent period.

Type
Research Article
Information
Parasitology , Volume 83 , Issue 2 , October 1981 , pp. 269 - 279
Copyright
Copyright © Cambridge University Press 1981

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References

REFERENCES

Coudert, P., Yvobé, P. & Provot, F. (1973). Sporogonie D'Eimeria stiedai (Lindemann 1865) Kisskalt et Hartmann 1907. Annales de Recherches Vétérinaires 4, 371–88.Google Scholar
Edgar, S. A. (1955). Sporulation of oocysts at specific temperatures and notes on the prepatent period of several species of avian coccidia. Journal of Parasitology 41, 214–16.CrossRefGoogle ScholarPubMed
Edgar, S. A. & Seibold, C. T. (1964). A new coccidium of chickens, Eimeria mivati sp. n. (Protozoa: Eimeriidae) with details of its life history. Journal of Parasitology 50, 193–204.CrossRefGoogle Scholar
Joyner, L. P. (1958). Experimental Eimeriamitis infections in chickens. Parasitology 48, 101–12.CrossRefGoogle ScholarPubMed
Joyner, L. P. & Long, P. L. (1974). The specific characters of the Eimeria, with special reference to the coccidia of the domestic fowl. Avian Pathology 3, 145–57.CrossRefGoogle Scholar
Joyner, L. P. & Norton, C. C. (1980). The Eimeria acervulina complex: Problems of differentiation of Eimeria acervulina, E. milis and E. mivati. Protozoological Abstracts 4, 45–52.Google Scholar
Long, P. L. (1967). Studies on Eimeria mivati in chickens and a comparison with Eimeria acervulina. Journal of Comparative Pathology 77, 315–25.CrossRefGoogle Scholar
Long, P. L. (1970). Some factors affecting the severity of infections with Eimeria tenella in chicken embryos. Parasitology 60, 435–47.CrossRefGoogle ScholarPubMed
Long, P. L. (1973). Studies on the relationship between Eimeria acervulina and Eimeria mivati. Parasitology 67, 143–55.CrossRefGoogle ScholarPubMed
Long, P. L. & Tanielian, Z. (1965). The isolation of Eimeria mivati in Lebanon during the course of a survey of Eimeria spp. in chickens. Institut de Recherches Agronomiques Lebanon. ‘Magon’ Scientific Series No. 6, 1–18.Google Scholar
Norton, C. C. & Joyner, L. P. (1980). Studies with Eimeria acervulina and E. mivati: pathogenicity and cross-immunity. Parasitology 81, 315–23.CrossRefGoogle Scholar
Peirce, M. A. (1980). A simple staining technique to demonstrate the sporozoite refractile globule in coccidian parasites. Parasitology 80, 551–4.CrossRefGoogle ScholarPubMed
Shirley, M. W. (1979). A reappraisal of the taxonomie status of Eimeria mivati Edgar and Seibold 1964, by enzyme electrophoresis and cross-immunity tests. Parasitology 78, 221–37.CrossRefGoogle Scholar
Shirley, M. W. & Rollinson, D. (1979). Coccidia: the recognition and characterization of populations of Eimeria. Symposia of the British Society for Parasitology 17, 7–30.Google Scholar
Tyzzer, E. E. (1929). Coccidiosis in gallinaceous birds. American Journal of Hygiene 10, 269–383.Google Scholar
Vetterling, J. M. & Doran, D. J. (1966). Schizogony and gametogony in the life cycle of the poultry coccidium Eimeria acervulina Tyzzer, 1929. Journal of Parasitology 52, 1150–7.CrossRefGoogle ScholarPubMed