Abstract
Summary
From the above data it appears that on an 18% casein diet, the supplementation of 75 mg of cystine in addition to 200 γ of pantothenic acid per rat per day markedly decreases the time required for the replacement of the grey hair of nutritional achromotrichia. Since better growth results when this amount of cystine is administered, the findings of Mulford and Griffith 1 that 18% casein diets do not furnish enough cystine for maximum growth of the rat, are substantiated.
The authors wish to acknowledge the technical assistance of Mr. Alois E. Rempe in this work.
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