* Individual variation: Horses vary in size, diet, and metabolism. A large draft horse will produce more droppings than a small pony.
* Diet: A horse eating a high-fiber diet will produce more droppings than one on a low-fiber diet.
* Activity level: More active horses tend to produce more droppings.
However, a general estimate is that a horse produces 10-15 droppings per day. This can vary significantly depending on the factors mentioned above.