Article Text

Equine Practice
Control of intestinal parasites in horses
  1. Chris Proudman

    Chris Proudman graduated from Cambridge in 1988. After two years in mixed practice, he moved to the University of Liverpool, where he completed an equine gastroenterology residency and a PhD in parasite epidemiology. He was awarded an RCVS Diploma of Fellowship in 1995 in equine gastroenterology and is currently lecturer in equine surgery at Liverpool.

  2. Jacqui Matthews

    Jacqui Matthews graduated from Glasgow in 1989. She was a Wellcome Trust PhD scholar in veterinary parasitology at Glasgow until 1992, and subsequently lecturer in veterinary parasitology. She is currently the International League for the Protection of Horses lecturer in equine medicine at the University of Liverpool.


INTESTINAL parasites are an important cause of morbidity and mortality in horses of all types. The prevalence of many intestinal helminths is high and, within any population of horses, certain individuals can harbour large numbers of parasites, which may lead to disease. There is widespread misunderstanding and ignorance about parasite control strategies among the horse-owning public, with the consequence that many horses are unnecessarily exposed to pathogenic burdens of intestinal parasites. It is the duty of all veterinary surgeons engaged in equine preventive medicine to be able to give sound advice to horse owners on the best anthelmintic strategy for their particular situation. This article reviews the problems of the control of intestinal parasites in horses, discusses some of the pharmaceutical and managemental control measures that can be used, and offers advice on putting this information into practice.

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