The rate of feed conversion was less efficient in pigs receiving the brewers dried grains. These authors also concluded that dried brewers grains could supply up to 50% of supplemental protein needs without a decrease in performance. Walhstrom and Libal [16] successfully used up to 40% brewers dried grains in the diet of gestating sows. Gestation weight gains of 39.5,47.6, and 32.7 kg were significantly different for sows fed 0%, 20%, and
40% brewers dried grains, respectively. There were no treatment differences
in reproductive performance. Litter size and weight of individual piglets,
litter weight at birth, and weaning were not affected by treatment.