Corn grain is an important ruminant energy source due its high starch levels. It is expected that whole corn can alter the amount of starch reaching the small intestine and, thus, positively influence the litter size (LS) via hormonal stimulation, compared with steam-flaked corn. Nutritional supplementation with whole corn and steam-flaked corn enhanced the lambing rate, live weight, and body condition scores but did not change the LS.