The incidence of Eimeria species in naturally infected calves
2007
Rind, R. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Veterinary Microbiology) | Probert, A.J. (University of North Wales (UK)) | Kamboh, A.A.
The present study reports the incidence of oocysts in faeces of calves in North Wales, naturally infected with Eimeria species. The Eimeria species encountered were E. bovis, E. auburnesis, E. canadensis, E. ellipsoidalis/ alabamensis, E. brasiliensis, E. cylindrica, E. zuernii, E. wyomingensis, E. subspherica and E. pellita. Multiple-infection was commonly seen due to two to coven species often represented in a single faecal sample. These species in the faecal samples of 3 - 4 months old calves were examined at monthly intervals and the seasonal incidence was determined over the period of 12 months. A significant reduction in the incidence was seen with time and this was most marked in the case of pathogenic species. No association between weight gain and number of oocysts shed was evident even when large number of oocysts of known pathogenic species was present.
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