Maize grain is fed as dry maize grain (less than 15% moisture) or high-moisture maize grain (22 to 28% moisture). When maize is dried, it should not be heated over 150C, since this reduces nutritive value and acceptability to pigs (Patience et al., 1995). Dry or high-moisture maize grain can be available as:unprocessed = whole grain, shelledfinely ground = fine mealcracked = medium particle sizesteam-rolled = moistened and flattened grainssteam-flaked = heated, moistened and pressured grains (flakes)