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U. S. Naval Radiological Defense Laboratory, San Francisco, California
The body fat of hypocalorically retarded rats decreased from 4.90% at 13 weeks of age to 2.24% at 23 weeks of age. During this time, the body protein had increased from 20.2 to 21.4%, and the body mineral had increased from 3.1 to 4.1%. By comparison, weight controls at 5 weeks of age had 6.39% of body fat, 17.1% of body protein, and 2.8% of minerals. Body water was noted to be the same for the weight controls and the retarded rats.