I try to give my horses enough hay to keep them busy until the next feeding since their digestive system is that of a grazer and they don't do well with a completely empty stomach. In the winter when it is colder, we up the hay some. They usually will eat for about a 30 min. to an hour and then take a break for a nap and come back later. We feed orchard and bermuda and they all do well on it. $20 a 100 lb. bale for orchard right now!