Isosporoid coccidiosis in translocated cirl buntings (Emberiza cirlus)

McGill, I.; Feltrer, Y.; Jeffs, C.; Sayers, G.; Marshall, R. N.; Peirce, M. A.; Stidworthy, M. F.; Pocknell, A.; Sainsbury, A. W.
October 2010
Veterinary Record: Journal of the British Veterinary Association;Oct2010, Vol. 167 Issue 17, p656
Academic Journal
Four of 17 cirl buntings () involved in a trial translocation in 2004 for conservation purposes died and were examined postmortem. Two of the cirl buntings showed intestinal and hepatic lesions, including necrotising enteritis, consistent with isosporoid coccidiosis, and a third had an intestinal infestation of isosporoid coccidia. Sporulated oocysts from faecal samples from the birds were identified as , a parasite previously detected in cirl bunting populations in continental Europe. In a subsequent translocation of 75 cirl buntings from Devon to Cornwall in 2006, each brood of birds was placed in strict quarantine at low stocking density, with improved hygienic precautions and detailed health surveillance, and each bird was treated prophylactically with toltrazuril in an attempt to control the disease but not eliminate the parasites. Seventy-two of the 75 birds were successfully reared and released, and there were no apparent clinical or pathological signs of isosporoid coccidiosis in any bird. was detected in the released population, an indication that it had been successfully conserved.


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