I would not feed my horse at rides what he does not get at
home! No grass at the ride? take plenty of hay. Don't feed
much grain at home? don't feed much at the ride but do feed small amounts
at the vet check. 10 - 11% protein grain is enough too.
Carbohydrates is what the horse needs, not protein. If not much grain at
home, then beet pulp would be a good choice. But feed it at home first to see if
the horse likes it. Jeanie