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Two Figures
Department of Biochemistry and Nutrition, University of Southern California School of Medicine, Los Angeles
In experiments on 120 male and 112 female rats, the rate of growth of animals weaned at 14 days was found to be identical over a period of 12 weeks on diets of mineralized skimmed milk powder to which was added vitamin-fortified corn, cottonseed, peanut or soybean oil or a margarine as on similar diets containing butter as the fat. The efficiency of transformation of these diets to body tissue was also similar within experimental error.
Manuscript received 13 October 1944.