This year's National Equine Health Survey, conducted by the Blue Cross and supported by Zoetis, has revealed that 20% of owners who claimed to have treated for encysted small redworm (ESRW) used a wormer that was not indicated to treat the parasite.
3,669 horse owners took part in the survey, which was conducted in May 2014. It contained 25 questions on general horse health, care and management and was validated by Professor Josh Slater at the Royal Veterinary College.
Zoetis says the findings suggest that horses are being left at serious risk (untreated, encysted small redworm may develop and emerge en masse from the gut wall, causing diarrhoea and colic with a mortality rate of up to 50%1).
The company is now running an encysted small redworm awareness campaign at www.esrw.co.uk, where owners can test their knowledge before discussing the best treatment options with their vet.
References
1. Dowdall S.M.J. et al (2002) Veterinary Parasitology 106, 225‑242
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