Kim, Yeonwoo, Su A Lee, Hans H. Stein. 2025. Comparative digestibility of energy and concentrations of energy in corn, soybean meal, and soybean hulls fed to growing pigs and gestating and lactating sows. Journal of Animal Science, Volume 103, Issue Supplement_1, May 2025, Pages 282–283, doi.org/10.1093/jas/skaf102.314 Link to abstract.