Effect of lysine and threonine supplements on nitrogen compounds in the urine of rats fed polished rice
J. Jap. Soc. Food Nutrition. 17: 240-243
Weanling male rats had diets with 85% polished rice without or with L-lysine hydrochloride 0.2 or 0.4, or DL-threonine 0.24%, and with sodium L-glutamate adjusted to maintain N constant. Growth was about the same with 0.2 or 0.4% lysine but during 4 days allantoin per cent of urea in urine was 17.2 and 56.8, respectively. Retained N was 64.9 and 75.6% of absorbed N; both fractions were significantly higher with the last diet.