What Do I Feed My Horse? - Managing Forage Part 2 April 16, 2018 Forage is the most important ingredient in the horse’s diet, yet the choices in forage species and form are sometimes daunting. Understanding the types and physical forms of forage and importance of forage quality will help horse owners choose the best forage to feed their horse. 1. Forage Species Forage in the form of hay or pasture is the primary ingredient in the diet for most horses. Horses...