Koch, B.A.; Howard, R.D.; Kropf, D.H.; Hines, R.H.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1968)
More information is needed on the optimum level of protein in sorghum grain-soybean meal rations for swine. Theoretically the protein value of a swine ration should be improved if the most limiting amino acids are added. ...