We have moved this content to EquinePlusFeed.com
Our Hi-Pro Feed has been renamed Equine Plus® Feed. The ingredients and manufacturing process are the same, only the name has changed.
Prebiotics and probiotics for horses both support gut health, but they function in different ways within the digestive system. Probiotics introduce beneficial microorganisms, while prebiotics provide the nutrients that help existing microbes grow and function. Understanding how each works helps support digestive stability, especially during stress, feed changes, or hindgut imbalance.
The horse’s digestive system depends on hindgut fermentation, where microbes break down fiber into usable energy. Prebiotics and probiotics both influence this system—but in different ways.
Rather than competing approaches, they work within the same microbial ecosystem, supporting different parts of the fermentation process.
Prebiotics and probiotics are often grouped together, but they serve distinct roles in the digestive system. In horses, where gut health depends heavily on microbial fermentation, understanding this difference helps clarify how digestive stability is supported.
Instead of being interchangeable, they should be viewed as complementary tools within a broader gut health strategy.
Probiotics are live microorganisms introduced into the digestive system to support microbial balance. They are typically used when the gut environment may be disrupted.
In horses, probiotics are commonly considered during:
Learn more about when to use probiotics for horses.
Prebiotics are non-digestible compounds that serve as a food source for beneficial microbes already present in the digestive tract. Instead of adding organisms, they support the growth and activity of the existing microbial population.
In the equine digestive system, prebiotics help sustain fermentation processes by providing substrates that microbes can utilize.
| Feature | Probiotics | Prebiotics |
|---|---|---|
| Function | Introduce microorganisms | Feed existing microbes |
| Role | Support microbial balance | Support microbial activity |
| Use Case | During stress or disruption | Ongoing digestive support |
| Mechanism | Add organisms to the system | Fuel the existing system |
Prebiotics and probiotics function within the same system. Probiotics introduce organisms, while prebiotics support their activity and growth.
This combined support can help maintain a more stable microbial environment, especially when the digestive system is under stress or adapting to change.
Both prebiotics and probiotics influence the microbial ecosystem that drives fermentation. Since this system is responsible for fiber digestion and energy production, microbial stability directly affects:
When microbial balance is stable, digestion is more consistent. When disrupted, these symptoms become more likely.
Because digestion drives energy production, both prebiotics and probiotics can influence performance indirectly through gut health.
Efficient fermentation supports energy availability, hydration balance, and recovery. When digestion is unstable, performance becomes less consistent.
This relationship is explained further in gut health and performance in horses.
The key difference between prebiotics and probiotics lies in how they support the digestive system. Probiotics introduce microorganisms, while prebiotics support the ones already present.
Both operate within a larger system that includes diet, feeding consistency, hydration, and overall management.
The science behind this system begins with gut bacteria in horses and the microbial processes that drive digestion.
Probiotics introduce beneficial microorganisms, while prebiotics provide nutrients that support existing microbes.
They may be used as part of a broader gut health strategy, especially during stress or digestive instability.
No. They serve different roles and are not direct substitutes.
They are often used during stress, feed changes, travel, or digestive inconsistency.
Prebiotics provide a food source for beneficial microbes, supporting fermentation and microbial activity.
