Horse Nematode Overview

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:

Stomach	Small Intestine	Large Intestine
Habronema (Draschia) Trichostrongylus axei	Parascaris equorum Strongyloides	Strongylus species Cyathostomins Triodontophorus species Oxyuris equi

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)

Test yourself with the Horse Nematode Flashcards

Horse Nematode Flashcards