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What can you do to prevent ulcers from developing in your horse? Equine ulcers are all too common, with studies showing that up to 90% of horses will be affected by ulcers in their lifetime.
Stomach ulcers, also known as Equine Gastric Ulcer Syndrome (EGUS), are most common in horses. But ulcers can occur along the entire digestive tract.
When ulcers develop in the hindgut, they are referred to as Right Dorsal Colitis (RDC) or colonic ulcers.
There are multiple distinct causes of ulcers in horses. When a horse develops gastric ulcers, it is usually due to several interacting risk factors including diet, exposure to stress, workload, environment, and more.
Unfortunately, recurrence is very common after treatment unless the root cause of the problem is addressed. This is why it’s important to look at your horse’s overall routine and feeding program to identify ways to reduce the risk of recurrence.
There are many ways to naturally reduce the risk of equine ulcers and support your horse’s gut health. With a few simple changes, you can significantly decrease the likelihood of ulcers and other ongoing digestive problems.
In this article, we will discuss natural strategies you can implement to prevent the potential onset of ulcers in your horse.
Ulcers in Horses: What are They?
Ulcers are painful lesions that occur along the gastrointestinal tract of the horse. [1] They develop when stomach acid causes erosion of cells and inflammation in the stomach wall.
The stomach of the horse continuously produces acid such as hydrochloric acid (HCl) whether there is food to digest or not. This makes the stomach a highly acidic environment which is a major risk factor for ulcer development.
The upper squamous region of the stomach is the most at risk for ulceration with up to 80% of all ulcers located here.
This region of the stomach cannot produce mucus or bicarbonate ions to protect the mucosal surfaces of the tract, leaving it susceptible to ulcer risk factors such as acids.
Instead of mucous, horses rely on food and saliva to buffer and protect the squamous region of the stomach. However, when the horse’s stomach is empty, these defenses are inactive and ulceration can occur.
The glandular region of the stomach is also exposed to stomach acid. However, it produces mucous and bicarbonate to buffer acids which protects the lining of this area. [20]
Negative Impact of Ulcers
In addition to discomfort, ulcers can cause a serious negative impact on a horse’s well-being and contribute to the following:
- Weight loss or malnutrition
- Lack of interest in eating
- Poor performance
- Teeth grinding, cribbing or wind-sucking
- Coarse skin and coat
- Colic
12 Ways to Naturally Prevent Ulcers in Horses
There are several effective treatment options for ulcers and the best treatment strategy depends on the type of ulcer present. Drugs like omeprazole, sucralfate, and misoprostol are most commonly prescribed.
However, these medications can be costly and labor-intensive to administer, which is why it’s so important to also focus on prevention strategies.
Preventing or minimizing potential risks for ulcers can reduce the frequency and/or severity of ulcers in your horse.
1) Avoid Intermittent Feeding
Intermittent feeding means there are prolonged periods between meals where your horse’s stomach is empty. This increases the risk of ulcers developing.
In a natural environment, horses graze for up to 18 hours per day. Their stomachs are almost never empty which prevents ulcers from developing.
For this reason, it is important to provide food throughout the day for your horse. [2]
The continuous presence of feed in the stomach helps to keep gastric acid in the protected glandular region of the stomach. It also provides the squamous region with feed and saliva to buffer the acidic pH.
In fact, intermittent feeding is such a major risk factor for equine ulcers that fasting is used as a model to induce ulcers in research. In other words, if you do not feed your horse for a long enough period, ulcers are guaranteed to develop.
When compared to horses fed two meals per day, Quarter horses fed 20 meals throughout the day had lower prevalence of ulcers after 30 days. [3]
Some horse owners with easy-keepers and overweight horses worry about providing constant access to forages.
Slow feed hay nets are a good option to help extend the amount of time your horse spends feeding, keeping the stomach full for longer, without over-supplying calories.
It’s ideal for your horse to have access to forage throughout the day, whether that means access to pasture or hay. Horses shouldn’t go longer than 4 hours without access to food.
2) Provide Constant Water Access
Hydration is important for many aspects of equine well-being but particularly for digestive health. Intermittent water intake increases the risk of developing ulcers.
Research shows that horses without access to water in their paddock are 2.5 times more likely to develop ulcers compared to horses with constant water access. Gastric ulcers in this population were also more severe. [21]
Water intake helps to dilute gastric fluids, reducing the stomach’s acidity. Consumption of water also supports gut motility, which refers to the transportation of food through the gastrointestinal tract.
Providing water to your horse may be difficult during transportation or when travelling to competitions. It can also be harder to provide fresh water during the winter when freezing conditions can occur.
At times when consistent water access is not possible, the other tips mentioned in this article become increasingly more important to lower ulcer risk for your horse.
3) Limit Grain Consumption
The composition of the diet can affect the digestive tract and may