What is the fruit salad bonus on Howrse?

It's possible you might be thinking of a different bonus or feature. Maybe you are remembering something like:

* The "Fruit Salad" feature: This feature allows you to mix different types of fruit in your horse's feed to give them specific bonuses. For example, apples give energy, oranges give agility, and bananas give speed. However, there is no specific "bonus" just for having fruit salad.

* Other bonuses: Howrse has a wide variety of bonuses, including those for breeding, training, and competition. Perhaps you are thinking of one of these bonuses that involves fruits in some way.

If you can provide more context, I may be able to help you identify the feature you're looking for.