Nitrogen Output.
Taken in. Nitrogen in Urine. Weight of Fæces (dry).
May 18 9.920 grams. 6.75 grams. 5.0 grams.
19 8.914 6.27 10.0
20 11.844 7.29 30.0
21 9.835 7.07 28.3
22 9.827 7.62 20.7
23 7.625 6.48 18.8
24 9.665 7.64 32.0
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144.8 grams contain 6.58 % N.
67.630 49.12 + 9.528 grams nitrogen.
------ ----------------------
67.630 grams nitrogen. 58.648 grams nitrogen.
Nitrogen balance for seven days = +8.982 grams.
Nitrogen balance per day = +1.283 grams.
Average Intake.
Calories per day 2542.
Nitrogen per day 9.661 grams.
During this balance period of seven days, 67.630 grams of nitrogen were
taken in with the food, while 49.12 grams of nitrogen were excreted
through the urine and 9.528 grams were passed out through the fæces.
This means a large plus balance of 8.98 grams of nitrogen for the entire
period, showing that the body was being supplied with considerably
more proteid than was necessary for the establishment of nitrogen
equilibrium. The average daily intake of nitrogen was 9.661 grams,
whereas this might have been reduced to 8.4 grams per day with perfect
assurance of nitrogen equilibrium being maintained. Further, it is to be
noticed that the average daily intake of food for this period had a fuel
value of only 2542 calories. The average daily excretion of metabolized
nitrogen during the balance period was only 7.01 grams, while the average
daily excretion for the last two months of the experiment amounted to
7.43 grams.
* * * * *
With Schenker the following results were obtained: