Category:Horse Nematodes

Gastrointestinal Nematodes

Introduction

Strongylus - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona

Many nematode species occur in the equine gastrointestinal tract, although not all are of equal importance:

Strongyles (Red worms)

The strongyles that occur in the horse can be divided on the basis of size into two groups

• Large strongyles
  • Strongylus species (3 species; used to be widespread prior to the introduction of worm control programmes; now uncommon)
  • Triodontophorus species (common)
• Small strongyles
  • Also known as Cyathostomins (preferred term), cyathostomes, trichonemes or small redworms
  • Cyathostomins (widespread, including 4 genera and over 40 species of worms)