Maintaining Gastric Health in Horses

by Staff Writer

Gastric health plays a crucial role in the overall well-being and performance of horses. As obligate herbivores, horses have evolved with a digestive system optimized for grazing and forage consumption. However, modern management practices, including stabling, feeding regimes, and exercise routines, can significantly impact their gastric health. In this article, we will explore the importance of gastric health in horses, common gastric issues they face, and practical strategies for maintaining optimal gastric function.

The Importance of Gastric Health

The equine stomach is relatively small compared to the size of the animal and is divided into two distinct regions: the upper squamous portion and the lower glandular region. These regions are susceptible to various disorders, including gastric ulcers, acidosis, and colic, which can lead to discomfort, reduced performance, and even life-threatening complications if left untreated.

Gastric ulcers are one of the most prevalent gastric issues in horses, particularly in performance horses. Factors such as high-grain diets, limited turnout, intense exercise, and stress contribute to the development of ulcers. The discomfort caused by ulcers can manifest as poor appetite, weight loss, behavioral changes, and decreased performance, negatively impacting the horse’s overall well-being and athletic potential.

Common Gastric Issues in Horses

Gastric Ulcers: Gastric ulcers occur when the protective lining of the stomach erodes due to prolonged exposure to gastric acid. Stress, poor feeding practices, and NSAID use are common predisposing factors.

Acidosis: Excessive consumption of high-starch or high-sugar diets can disrupt the delicate pH balance in the horse’s stomach, leading to acidosis, which can predispose the horse to ulcers and colic.

Colic: Gastric disturbances, such as impaction colic or gas colic, can result from dietary indiscretions, poor forage quality, or abrupt changes in feeding routines, leading to abdominal pain and discomfort.

Maintaining Optimal Gastric Health

Proper Nutrition: A diet rich in high-quality forage and low in concentrates can help maintain gastric health by promoting saliva production, buffering gastric acid, and preventing acidosis. Feeding smaller, more frequent meals throughout the day mimics the horse’s natural grazing behavior and reduces the risk of gastric ulcers.

Adequate Turnout and Exercise: Regular turnout in a natural environment allows horses to graze freely, engage in social interactions, and alleviate stress, all of which contribute to better gastric health. Additionally, appropriate exercise regimes promote gut motility and reduce the risk of colic.


Stress Management: Minimizing sources of stress in the horse’s environment, such as overcrowding, transport, and competition, is essential for maintaining gastric health. Providing a stable routine, ample turnout, and opportunities for mental stimulation can help reduce stress levels and prevent gastric disturbances.

Routine Veterinary Care: Regular veterinary examinations, including gastroscopy, can help identify gastric issues early and implement appropriate treatment and management strategies. Prophylactic use of medications such as proton pump inhibitors or histamine receptor antagonists may be warranted in high-risk individuals.

Environmental Management: Proper stable design, including access to free-choice hay, adequate ventilation, and socialization with other horses, promotes a healthy gastrointestinal environment and reduces the risk of gastric disorders.

Gastric health is paramount for the well-being and performance of horses. By implementing appropriate management practices, including proper nutrition, stress reduction, and veterinary care, horse owners and caretakers can mitigate the risk of gastric issues and ensure their equine companions lead happy, healthy lives. Investing in gastric health not only improves the quality of life for individual horses but also enhances their performance and longevity in various disciplines.