Abstract
Summary
1. A lysine-free ration fed to weanling rats either ad libitum or by a forcible feeding procedure reduces the activity of liver xanthine oxidase, succinic oxidase, and choline oxidase to somewhat over half that of normal. 2. A lysine deficiency has little effect on liver endogenous respiration. 3. The deficiency produces an entirely different pattern of liver enzyme activity from that produced by a methionine or histidine deficiency.
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