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GI Tract & Ulcers

grazing horses sunrise microbiome
My Senior Horse Podcast: The Role of the Equine Gut Microbiome
September 15, 2026
⎯ Kimberly S. Brown
In this episode, Dr. Simon Daniels explains how the equine gut microbiome influences weight, behavior, and more.
colic surgery horse on hoist
Colic Surgery in Senior Horses
November 11, 2025
⎯ My Senior Horse Editors
The outcome of colic surgery in aged equines has improved greatly in the last 20 years.
gastric ulcers girthiness horse unhappy tightening girth
Gastric Ulcers in Senior Horses
September 23, 2025
⎯ Nanna Luthersson, DVM
Why senior horses might be more susceptible to developing gastric ulcers and how you can reduce your horse's risk.
Horse closeup portrait retired aged to paddock pastures
Understanding the Aging Equine Immune System 
August 16, 2025
⎯ Alexandra Beckstett
Horses experience less profound immune system changes than humans as they get older. However, researchers still have much to learn about equine aging.
EGUS grade 3 ulcer
Havemeyer Report on Equine Gastric Ulcer Syndrome (EGUS)
May 10, 2025
⎯ Kimberly S. Brown
A Havemeyer meeting on equine gastric ulcer syndrome took place in early 2025.
READER FAVORITES
Ombre Liz Crawley Photography2
Older, Wiser, and Winning: Meet Senior Arabian Ombre
Horse owner touching her horse's hoof, potentially to monitor for signs of laminitis.
Understanding the Three Stages of Laminitis in Horses
White horse legs close up
Anatomy of the Equine Carpus and Metacarpus
Horse teeth
Horse Teeth by Age
POLLS & QUIZZES
More Polls →
FUN STUFF
retired horse on trail ride
My Senior Horse Podcast: When Is It Time for a Senior Horse to Slow Down or Retire?
aged horses herd of senior equids
New Research Reveals Age-Related Differences in Movement Among Senior Horses
fat horse standing in field, equine metabolic syndrome, laminitis, insulin dysregulation
New Medications Are Changing How We Manage Metabolic Disease in Horses
glendenning
My Senior Horse Podcast: Feeding Senior Horses in Spain and Beyond
More Fun Stuff →
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