Equine Welfare

Horse Gastric Ulcer Prevention: Updated Strategies

Equine gastric ulcer syndrome affects up to 90% of racehorses and many sport horses, making prevention a critical welfare priority.

Key Facts

Up to 90% of racehorses and 60% of sport horses develop gastric ulcers
Two types: squamous (upper stomach) and glandular (lower stomach) ulcers
Fasting for more than 6 hours dramatically increases acid exposure
Alfalfa hay contains calcium and protein that buffer stomach acid naturally
Omeprazole is effective for squamous ulcers but less so for glandular disease
Stress, intense exercise, and NSAID use are primary risk factors

Welfare Considerations

Gastric ulcers cause chronic pain that significantly degrades equine welfare. Affected horses often show reluctance to work, girthiness, behavioral changes, and reduced appetite - all indicators of ongoing discomfort. Prevention through management changes is more welfare-positive than relying on medication alone, since medication addresses symptoms while proper feeding and management address root causes.

What You Can Do

Feed horses little and often - at least 3 times daily - to buffer stomach acid
Provide constant access to hay or pasture to reduce fasting periods
Use alfalfa hay as part of the diet, especially before intense exercise
Minimize NSAID use and use gastric protectants when NSAIDs are necessary
Work with an equine vet to endoscope horses showing behavioral changes
Reduce training intensity and competition stress where possible