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Immunity to Eimeria brunetti and Eimeria maxima infections in the fowl

Published online by Cambridge University Press:  06 April 2009

M. Elaine Rose
M. Elaine Rose
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon
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Extract

Fowls were completely resistant to a third inoculation with E. maxima oocysts given after two graded and spaced infections. Resistance was complete to a fourth inoculation of E. brunetti oocysts after a series of three infections.

Birds made resistant to E. maxima and then inoculated with E. brunetti showed very little evidence of this infection when the intestines were examined on the sixth day and they passed very few oocysts in the faeces. The resistance of E. brunetti-immunized chickens to E. maxima infection was not quite so strong. The results indicate that, under the conditions of the experiment, infection with either of these species will protect in some degree against subsequent infection with the other. These results suggest that the species specificity of acquired resistance is not so complete as previously reported.

I am indebted to my colleague, Mr P. L. Long, for his interest throughout the experiment and, in particular, for assistance with the examination of the intestines. The excellent technical assistance of other members of the Parasitology Department is also gratefully acknowledged. Mr Paul Rogers took the photographs.

Type
Research Article
Information
Parasitology , Volume 57 , Issue 2 , May 1967 , pp. 363 - 370
Copyright
Copyright © Cambridge University Press 1967

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References

REFERENCES

Horton-Smith, C. & Long, P. L. (1959). The effects of different anticoccidial agents on the intestinal coccidioses of the fowl. J. comp. Path. 69, 192–207.CrossRefGoogle ScholarPubMed
Horton-Smith, C. & Long, P. L. (1965). The treatment of coccidial infections in fowls by a mixture of amprolium and sulphaquinoxaline in the drinking water. Vet. Rec. 77, 586–91.Google ScholarPubMed
Johnson, W. T. (1938). Coccidiosis of the chicken with special reference to species. Stn. Bull. Ore. agrie. Exp. Stn. 358, 3–33.Google Scholar
Levine, P. P. (1942). A new coccidium pathogenic for chickens. Eimeria brunetti. n.sp. (Protozoa: Eimeriidae). Cornell Vet. 32, 430–9.Google Scholar
Long, P. L. (1962). Observations on the duration of the acquired immunity of chickens to Eimeria maxima Tyzzer, 1929. Parasitology 52, 89–93.CrossRefGoogle Scholar
Long, P. L. & Rowell, J. G. (1958). Counting oocysts of chicken coccidia. Lab. Pract. 7, 515–19.Google Scholar
Reid, W. M. (1964). Eimeria brunetti—Studies on incidence and geographical distribution. Am. J. Vet. Res. 25, 224–9.Google ScholarPubMed
Rose, M. E. (1965). Immunity in the fowl to some species of Eimeria. In Prog. Protozool. p. 155. (Abstr.)Google Scholar
Rose, M. E. & Long, P. L. (1962). Immunity to four species of Eimeria in the fowl. Immunology 5, 79–92.Google Scholar
Tyzzer, E. E. (1929). Coccidiosis in gallinaceous birds. Am. J. Hyg. 10, 269–383.Google Scholar
Tyzzer, E. E., Theiler, H. & Jones, E. E. (1932). Coccidiosis in gallinaceous birds. II. A comparative study of species of Eimeria of the chicken. Am. J. Hyg. 15, 319–93.Google Scholar