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Studies to determine the taxonomic status of Eimeria mitis, Tyzzer 1929 and E. mivati, Edgar and Seibold 1964

Published online by Cambridge University Press:  06 April 2009

M. W. Shirley
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon PE 17 2DA
T. K. Jeffers
Affiliation:
Lilly Research Laboratories, Division of Eli Lilly and Company, Greenfield, Indiana 46140, USA
P. L. Long
Affiliation:
Department of Poultry Science, University of Georgia, Athens, Georgia 30602, USA

Summary

We have examined several taxonomic features of a number of strains of Eimeria from many sources world wide. The strains were isolated on the basis of their small spherical (or sub-spherical) oocysts. From a study of mean oocyst dimensions, electrophoretic variation of enzymes, ability to develop in embryonated eggs, absence of gross lesions in heavily infected chickens, and cross-immunity, all the strains were found to belong to one species. For convenience, the parasites when isolated, were referred to as strains of E. mitis/mivati-type, but after characterization they were clearly found to be E. mitis. In contrast, a laboratory strain of E. mivati supplied to one of us (M.W.S.) was found to be a mixture of E. acervulina and E. mitis. Evidence from these and other studies supports the notion that E. mivati is a nomina dubia.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1983

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References

REFERENCES

Chapman, H. D. (1982). The use of enzyme electrophoresis for the identification of the species of Eimeria present in field isolates of coccidia. Parasitology 85, 437–42.CrossRefGoogle ScholarPubMed
Cooper, D. M. & Timms, J. R. (1972). The rearing and maintenance of breeding chickens in isolators. I. Glassfibre isolators. Avian Pathology 1, 4757.CrossRefGoogle 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, 193204.CrossRefGoogle ScholarPubMed
Fernando, M. A. & Remmler, O. (1973). Four new species of Eimeria and one of Tyzzeria from the Ceylon Jungle Fowl Gallus lafayettei. Journal of Protozoology 20, 357.CrossRefGoogle ScholarPubMed
Horton-Smith, C. & Long, P. L. (1959). The effect of different anti-coccidial agents on the intestinal coccidioses of the fowl. Journal of Comparative Pathology 69, 192207.CrossRefGoogle Scholar
Johnson, J. & Reid, W. M. (1970). Anticoccidial drugs: lesion scoring techniques in battery and floor pen experiments with chickens. Experimental Parasitology 28, 30–6.CrossRefGoogle ScholarPubMed
Joyner, L. P. (1958). Experimental Eimeria mitis infection in chickens. Parasitology 48, 101–12.CrossRefGoogle ScholarPubMed
Joyner, L. P. & Norton, C. C. (1980). The Eimeria acervulina complex: problems of differentiation of Eimeria acervulina, E. mitis and E. mivati. Protozoological Abstracts 4, 4552.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. (1973). Studies on the relationship between Eimeria acervulina and Eimeria mivati. Parasitology 67, 143–55.CrossRefGoogle ScholarPubMed
Long, P. L. (1974). Experimental infection of chickens with two species of Eimeria isolated from the Malaysian jungle fowl. Parasitology 69, 337–47.CrossRefGoogle ScholarPubMed
Long, P. L. & Millard, B. J. (1973). Eimeria infection of chicken embryos: the effect of known anticoccidial drugs against E. tenella and E. mivati. Avian Pathology 2, 111–25.CrossRefGoogle ScholarPubMed
Long, P. L. & Rowell, J. E. (1958). Counting oocysts of chicken coccidia. Laboratory Practice 7, 515–19.Google Scholar
Long, P. L. & Tanielian, Z. (1965). The isolation of Eimeria mivati in Lebanon during the course of a survey of Eimeria spp. in chickens. ‘Magon’ Institute de Recherches Agronomiques, Scientific Series No. 6, 118.Google Scholar
Long, P. L., Joyner, L. P., Millard, B. J. & Norton, C. C. (1976). A guide to laboratory techniques used in the study and diagnosis of avian coccidiosis. Folia Veterinaria 6, 201–17.Google Scholar
McDougald, L. R. & Keshavarz, K. (1981). Anticoccidial efficacy ofsalinomycin (AHR-3096C) and comparability with roxarsone in floor-pen experiments with broilers. Poultry Science 60, 2416–22.CrossRefGoogle ScholarPubMed
Norton, C. C. & Joyner, L. P. (1980). Studies with Eimeria acervulina and E. mivati: pathogenicity and cross-immunity. Parasitology 81, 315–23.CrossRefGoogle Scholar
Norton, C. C. & Joyner, L. P. (1981). Eimeria acervulina and E. mivati: oocysts, life-cycle and ability to develop in the chicken embryo. Parasitology 83, 269–79.CrossRefGoogle Scholar
Reid, W. M., Friedhoff, K., Hilbrich, P., Johnson, J. & Edgar, S. A. (1965). The occurrence of the coccidium species Eimeria mivati in European poultry. Zeitschrift für Parasitenkunde 25, 303–8.CrossRefGoogle Scholar
Ryley, J. F. & Betts, M. J. (1973). Chemotherapy of chicken coccidiosis. Advances in Pharmacology and Chemotherapy 11, 221–93.CrossRefGoogle ScholarPubMed
Shirley, M. W. (1975). Enzyme variation in Eimeria species of the chicken. Parasitology 71, 209–76.CrossRefGoogle ScholarPubMed
Shirley, M. W. (1979). A reappraisal of the taxonomic status of Eimeria mivati Edgar and Seibold 1964, by enzyme electrophoresis and cross-immunity tests. Parasitology 78, 221–37.CrossRefGoogle ScholarPubMed
Shirley, M. W. & Rollinson, D. (1979). Coccidia: the recognition and characterisation of populations of Eimeria. Symposia of the British Society for Parasitology, vol. 17, pp. 730. Oxford: Blackwell Scientific Publications.Google Scholar
Shirley, M. W., Millard, B. J. & Long, P. L. (1977). Studies on the growth, chemotherapy and enzyme variation of Eimeria acervulina var. diminuta and E. acervulina var. mivati. Parasitology 75, 165–76.CrossRefGoogle Scholar
Tyzzer, E. E. (1929). Coccidiosis in gallinaceous birds. American Journal of Hygiene 10, 269383.Google Scholar