1. The effect of productive energy level of the diet on the methionine requirement of the chick;Baldini;Poultry Sci.,1955
2. Composition and productive energy of poultry feeds and rations;Fraps;Texas Agr. Exp. Sta. Bul.,1946
3. The relation of dietary energy level to rate and efficiency of egg production;Hill;Proceedings of the 1954 Cornell Nutrition Conference for Feed Manufacturers,1954
4. Lysine requirement of the growing rat as a function of the productive energy level of the diet;Rosenberg;J. Animal Sci.,1955