Silage from a sweet forage sorghum with a low grain-to-stalk ratio–variety Rex–was compared to silage from a dual purpose forage sorghum with a higher grain-to-stalk ratio–variety Hegari– and both were compared to alfalfa hay and alfalfa silage in feeding trials with beef steers. Two experiments were conducted; one with a limited concentrate ration, and the second, with a full feed of concentrate.