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Comparison of toltrazuril and sulphadimethoxine in the treatment of intestinal coccidiosis in pet rabbits
  1. S. P. Redrobe, BSc, BVetMed, CertLAS, DZooMed, MRCVS1,
  2. G. Gakos, DVM2,
  3. S. C. Elliot3,
  4. R. Saunders, BSc, BVSc, CertZooMed, MRCVS1,
  5. S. Martin2 and
  6. E. R. Morgan, MA, VetMB, PhD, DipEVPC, MRCVS;2
  1. 1Veterinary Department, Bristol Zoo Gardens, Bristol BS8 3HA
  2. 2School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG
  3. 3School of Clinical Veterinary Science, University of Bristol, Langford House, Langford, North Somerset BS40 5DU
  1. E-mail for correspondence: sharon.redrobe{at}nottingham.ac.uk

Abstract

Treatment of intestinal coccidiosis was studied in domestic pet rabbits. In 45 rabbits aged four months or more, coccidial oocysts were observed in the faeces of 35 rabbits at a mean density of 806 opg (range 50 to 6800 opg). Eimeria magna was the dominant species, with Eimeria media and Eimeria intestinalis also being common. The presence of the hepatic species Eimeria stiedae was not recorded. A single oral dose of 2.5 mg/kg or 5.0 mg/kg toltrazuril, or a single oral dose of 50 mg/kg sulphadimethoxine followed by its inclusion in drinking water at 1 g/4 l for nine days, were all found to significantly reduce the faecal oocyst count by 73 to 99 per cent. The extent of oocyst reduction in the faeces was not dependent on the dose of toltrazuril. Oocyst counts began to rise again in the days after treatment ceased.

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