Where I board my horse, they are pasture-kept. (Fed hay in the winter, of course, with a mineral block). The two horses who have lived there for years are as fat as barrels. :) Not fat, really, but nice and sleek and well-muscled. My horse was thin when I got her in January, so she gets some extra goodies, but I think pasture-kept is the way to go. I have to totally agree with wild spot on that one; I think horses should get to act like horses. Now, does it irritate me that as soon as Annie gets brushed, she goes and covers herself in mud clumps? LoL, of course! But I want her to be happy, and when I saw her kicking up her heals (er, hooves) and running around today when I went to see her, I knew she was happy. However, I have to say, I think some horses need supplemental feed besides grass, and I also hate to see a horse on inadequate pasture who's too thin.