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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

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