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A comparison of two laboratory strains of Eimeria tenella

Published online by Cambridge University Press:  06 April 2009

L. P. Joyner  and
C. C. Norton
L. P. Joyner
Affiliation:
Central Veterinary Laboratory, Ministry of Agriculture, Fisheries and Food, Weybridge, Surrey
C. C. Norton
Affiliation:
Central Veterinary Laboratory, Ministry of Agriculture, Fisheries and Food, Weybridge, Surrey
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Extract

Two strains of E. tenella (Weybridge and Houghton), which have been maintained by laboratory passage for at least 20 years without exposure to drugs, were compared.

Oocyst dimensions and morphology were similar and cross-protection experiments showed that the strains could not be distinguished immunologically.

One strain (Weybridge) caused greater caecal haemorrhage than the other when small doses of oocysts were given and was less completely controlled by some quinoline and pyridine drugs.

Acknowledgements are due to Dr M. E. Rose of the Houghton Poultry Research Station who kindly made the Houghton strain of E. tenella available to us with details of its maintenance.

The statistical calculations were made by Miss C. N. Hebert.

Type
Research Article
Information
Parasitology , Volume 59 , Issue 4 , November 1969 , pp. 907 - 913
Copyright
Copyright © Cambridge University Press 1969

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References

REFERENCES

Davies, S. F. M. & Joyner, L. P. (1962). Infection of the fowl by the parental inoculation of oocysts of Eimeria. Nature, Lond. 194, 996–7.CrossRefGoogle Scholar
Davies, S. F. M. & Joyner, L. P. (1963). Design of therapy for the control of species of Eimeria in the domestic fowl. J. comp. Path. Ther. 73, 379–90.CrossRefGoogle ScholarPubMed
Doran, D. J. & Vetterling, J. M. (1968). Preservation of coccidial sporozoites by freezing. Nature, Lond. 217, 1262.CrossRefGoogle ScholarPubMed
Joyner, L. P. (1969). Immunological variation between two strains of Eimeria acervulina. Parasitology 59, 725–32.CrossRefGoogle ScholarPubMed
Joyner, L. P. & Davies, S. F. M. (1960). Detection and assessment of sublethal infections of Eimeria tenella and Eimeria necatrix. Exptl Parasit. 9, 243–9.CrossRefGoogle ScholarPubMed
Kouwenhoven, B. (1967). The possibility of low-temperature freezing of Eimeria tenella sporocysts. Tijdschr. Diergeneesk. 92, 1639–42.Google Scholar
Norton, C. C. & Joyner, L. P. (1968). The freeze-preservation of coccidia. Res. vet. Sci. 9, 598–600.CrossRefGoogle ScholarPubMed
Schanzel, H. (1967). The use of Fe59 for studying haemorrhage due to Eimeria tenella in chickens. Folia. Parasit Praha 14, 269–74.Google Scholar