Correlation of Nitrogen to the Heat of Combustion of Rat Urine

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Abstract
The r2 of total nitrogen to total energy of rat urine was 0.98. The equation for estimating the energy content of urine was Y=7.00 x+6.56 (Y=total gross energy of urine in kcal; X=total g nitrogen in urine). The average urinary energy was 10.12±0.24 kcal/g nitrogen. Predictions of urinary energy derived from this ratio and from the regression equation were similar at low levels of nitrogen(ca. 2 g) but diverged at higher levels. Copyright © 1972. American Society of Animal Science . Copyright 1972 by American Society of Animal Science