Abstract
The supplemental effects of 0.5% L-lysine hydrochloride, 0.4% L-threonine, 0.15% L-tryptophan and 0.3% L-methionine to polished rice powder was examined in rats.
The growth of rats fed on polished rice powder added with lysine and threonine was good, but further improvement was obtained by adding tryptophan and methionine to the diet. The ratio of food efficiency, ratio of nitrogen efficiency were increased by the supplement. The supplement also decreased the urinary excretion of nitrogen and increased that of creatinine and allantoin. No significant difference was observed when the effects of supplement was compared by the different dietary fat level
