From One Day of Age Through the First Laying Year on Rations Containing Soybean Oil Meal as a Protein Supplement

THE use of soybean oil meal in the starting ration for chicks has been studied extensively and the literature ably reviewed, Heuser, Norris, and Mc-Ginnis (1945). Soybean oil meal has been found to require supplementation by products of animal origin to give maximum growth results for starting chicks. Draper and Evans (1944) reported the use of soybean oil meal in the ration for growing chicks beyond eight weeks of age. Hayward, et al. (1937) used soybean oil meal rations continuously through the starting and developing periods. Soybean oil meal as the sole source of supplementary protein has given satisfactory results in the laying ration, Carver, Brant and Evans (1944); Carver, et al. (1946), and many others. The experiment herein reported was designed to test the use of soybean oil meal as the sole source of supplementary protein for growing chicks from one day of age to maturity and maintaining those . . .