Journal of Agricultural Research 
Vol.-IX, No. 12 
408. 
The experimental periods were of 10 days’ duration, separated by 
7-day intervals during which were fed the rations of the periods to fol¬ 
low. The feces were marked with carmine. 
Table I records the total amounts and nitrogen content of the foods 
consumed and feces produced. 
Table II records the percentages of total nitrogen in the feces and 
of metabolic nitrogen, as estimated by the three different methods. 
Table III records the coefficients of digestibility of the nitrogen of the 
foods. 
TablS I .—Foods consumed and total nitrogen in foods and feces 
Period 
No. 
(todays). 
Pig 
No. 
Foods consumed. 
Nitrogen in foods. 
Weight of 
feces. 
Total nitrogen of feces. 
Corn. 
Supple¬ 
ments. 
Corn. 
Supple¬ 
ments. 
Gm. 
Gm. 
Gm. 
Gm. 
Gm. 
Per cent . 
Gm. 
' 1 
18, 200 
24 <. 700 
6. 2<?7 
0. QOK 
2C2 
2 
19 . 73 * 
266. 373 
v > OOt 
7 .SS 3 
v yyj 
.889 
67.146 
I. 
< 3 
20 , OOO 
270. OOO 
7.954 
.989 
78.665 
0 
4 
l8, OOO 
243. OOO 
5,866 
I. 005 
5 8 - 953 
5 
l6, 800 
226. 800 
5.645 
I. OOO 
5 6 - 45® 
Blood 
Blood 
albumen. 
albumen. 
f 1 
l6, 200 
73 ° 
215. 298 
83. 987 
5 , 737 
.888 
So- 945 
2 
18, OOO 
810 
239. 220 
93 * r 9 i 
6,144 
• 785 
48.230 
II. 
\ 3 
19, OOO 
855 
252. 510 
98. 368 
6,710 
I. 006 
67. 503 
17 , IOO 
770 
227. 259 
88. 589 
s* 428 
. 892 
48. 4l8 
l 5 
17, IOO 
770 
227. 259 
88. 589 
5,226 
*943 
49. 28l 
Skim milk. 
Skim milk. 
1 
17, IOO 
21, 400 
23O. 679 
III. 708 
5.857 
1.082 
63- 373 
2 
19, OOO 
23,800 
256.3IO 
124. 236 
6,566 
. 900 
59.094 
III. . . . 
< 3 
19, OOO 
23,800 
256.3IO 
124. 236 
6,936 
1. 059 
73 - 45 * 
4 
17, IOO 
21, 400 
23O. 679 
III. 708 
5.67a 
1. 066 
60. 464 
5 
17, IOO 
21, 400 
23O. 679 
III. 708 
5.529 
1. 060 
58. 607 
Egg 
Egg 
albumen. 
albumen. 
1 
17, IOO 
770 
234. 44I 
87. 226 
5 . **9 
1. 226 
62. 882 
2 
19, OOO 
85s 
260. 49O 
96.854 
5 .847 
.989 
57- 827 
IV. 
3 
19, OOO 
855 
260. 49O 
96.854 
6,263 
X. 346 
84.300 
4 
17, IOO 
770 
234. 44I 
87. 226 
5 .4*0 
1.177 
63.676 
5 
17, IOO 
770 
234. 44I 
87. 226 
5 . 37 * 
I. 070 
57 - 470 
