My Clyde cross gelding is on pasture 24/7 and free choice timothy/alfalfa mix, I just keep the feeder full at all times. That's it for him because he's overweight. My 1/2 Shire mare, who came to me malnourished and is currently nursing a foal, is on 24/7 pasture and the free choice hay, plus 2 quarts Nutrena Safechoice, 1 quart Nutrena Life Design Mare and Foal am and pm, and a Smartpack supplement custom mixed (I think it's mostly Smartflex II for her arthritis though). My yearling 3/4 Shire colt is on 24/7 pasture, free choice hay, and 1 quart Nutrena Safechoice and 1 quart Legends Grow and Perform growth formula am and pm. My suckling 3/4 Shire filly is just on mama's milk and what grass she gets mimicking mama. :) All the horses have free choice mineral and salt as well.