Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-28T05:26:57.240Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies on the relationship between Eimeria acervulina and Eimeria mivati

Published online by Cambridge University Press:  06 April 2009

P. L. Long
P. L. Long
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdonshire
Get access Rights & Permissions [Opens in a new window]

Extract

Two strains each of Eimeria acervulina and Eimeria mivati were examined for their ability to develop in the chorioallantoic membrane (CAM) of chicken embryos and the caeca of chickens. It was found that between 100 and 1000 times more sporozoites of E. acervulina were needed to produce infections in the caeca and the embryo CAM respectively. The reproduction of both species in infections of chickens was similar and a high degree of cross-protection occurred.

It was found that oocysts of E. mivati differed in size and shape depending upon whether they were produced from infections of embryos or chickens. When maintained by passage in chickens they assumed size and shape characteristics of E. acervulina.

These findings, with the known similarity of the life-cycle stages, pathogenicity and pathology, indicate that E. mivati is not sufficiently different from E. acervulina to be a distinct species. It is suggested that it is best referred to as E. acervulina var. mivati.

Type
Research Article
Information
Parasitology , Volume 67 , Issue 2 , October 1973 , pp. 143 - 155
Copyright
Copyright © Cambridge University Press 1973

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Edgar, S. A., & Siebold, 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 ScholarPubMed
Itagaki, K., Tsubokura, M., & Taiba, Y.. (1972). Basic biological studies on avian coccidium development of Eimeria tenella, E. brunetti and E. acervulina in chick embryos. Japanese Journal of Veterinary Science 34, 143–9.Google Scholar
Joyner, L. P., (1958). Experimental E. mitis infections in chickens. Parasitology 48, 101–12.CrossRefGoogle Scholar
Joyner, L. P., (1969). Immunological variation between two strains of Eimeria acervulina. Parasitology 59, 725–32.Google Scholar
Joyner, L. P., & Norton, C. C., (1972). The development of Eimeria acervulina in the caeca of young fowls. Parasitology 64, 479–83.Google Scholar
Long, P. L., (1967 a). Studies on Eimeria mivati in chickens and a comparison with Eimeria acervulina. Journal of Comparative Pathology and Therapeutics 77, 315–25.Google Scholar
Long, P. L., (1967 b). Coccidiosis in chickens and turkeys. Veterinary Record 80 (Suppl.), pp. 8–12.Google Scholar
Long, P. L., (1970). Some factors affecting the severity of infection with Eimeria tenella in chicken embryos. Parasitology 60, 435–47.CrossRefGoogle ScholarPubMed
Long, P. L., (1972 a). Eimeria mivati: reproduction, pathogenicity and immunogenicity of a strain maintained in chick embryos by serial passage. Journal of Comparative Pathology and Therapeutics 82, 439–45.Google Scholar
Long, P. L., (1972 b). Eimeria tenella: reproduction, pathogenicity and immunogenicity of a strain maintained in chick embryos by serial passage. Journal of Comparative Pathology and Therapeutics 82, 429–37.Google Scholar
Long, P. L., (1973). Endogenous stages of a ‘chick embryo-adapted’ strain of Eimeria tenella. Parasitology 66, 55–62.CrossRefGoogle ScholarPubMed
Long, P. L., & Horton-Smith, C., (1969). Coccidia and coccidiosis in the domestic fowl. In Advances in Parasitology. New York and London: Academic Press 6, 313–25.Google Scholar
Long, P. L., & Millard, B. J., (1968). Eimeria: effect of meticlorpindol and methyl benzoquate on endogenous stages in the chicken. Experimental Parasitology 23, 331–8.CrossRefGoogle ScholarPubMed
Long, P. L., & Rowell, J. G., (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’ Institut de recherches Agronomiques, Liban, no. 6, 1–18.Google Scholar
Ryley, J. F., & Betts, M. J., (1973). Chemotherapy of chicken coccidiosis. Advances in Chemotherapy. New York and London: Academic Press. (In the Press.)Google Scholar
Shibalova, T. A., (1970). Cultivation of the endogenous stages of chicken coccidia in embryos and tissue cultures. Journal of Parasitology 56, Section 11, part 1. Abstr. 582.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
Warren, E. W., & Ball, S. J., (1967). Schizogonous stages of Eimeria acervulina Tyzzer, 1929. Nature, London, 214, 829–30.Google Scholar