Fritts, C.A., J.H. Kersey, and P.W. Waldroup. “Utilization of Spent Hen Meal in Diets for Laying Hens”. International Journal of Poultry Science 1, no. 4 (June 15, 2002): 82–84. Accessed September 21, 2025. https://ijpsjournal.org/index.php/ijps/article/view/25.