Gastric Ulceration - Horse

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Gastric Ulceration - all species

  • Affects the pars oesophagea (margo plicatus) in adults and foals.
  • Due to parasites - Gasterophilus (Bots).
  • Bots are not as common as they once were.
  • Look like big pink maggots.
  • Killed by Ivermectin.
  • Gasterophilus leave large ulcers in glandular regions of the stomach.
    • Ulcers / erosions are quite deep.
  • The parasites are believed to be non-pathogenic, but in large numbers they probably produce some discomfort and poor growth.
  • Carcinoma can also produce ulceration in the stomach of the horse as, in other species.
  • In foals, the glandular area may sometimes be affected.
    • This may be e.g. stress-related, or due to used of NSAIDs.