June 18,191? Methods of Estimation of Metabolic Nitrogen 409 
TablS II. —Total and metabb lie nitrogen of feces (per cent) 
Periods (10 days). 
Pig No. 
Total 
nitrogen. 
Metabolic nitro&eh. 
.. It—:—LL 
Pepsin- 
hydro¬ 
chloric acid 
method. 
Pepsin- 
pancreatin 
method. 
Jordan’s 
method; 
f I 
°-995 
0. 706 
0. 836 
0-473 
2 
.889 
. 619 
. 760 
. 418 
< 3 
.989 
. 701 
.834 
.468 
I 4 
1. 005 
. 656 
.816 
•447 
l 5 
1. 000 
.741 
858 
•445 
f 1 
.888 
• 585 
• 749 
. 422 
2 
•785 
.581 
,677 
.404 
< 3 
1. 006 
• 773 
• 857 
.446 
I 4 
. 892 
. 641 
.738 
.368 
1 5 
•943 
. 712 
. 820 
.380 
' r 
1. 082 
• 7i4 
•831 
. 426 
2 
. 900 
• 590 
•693 
•347 
Ill... 
< 3 
i- 059 
•739 
•857 
•392 
4 
1. 066 
. 704 
. 8l4 
. 416 
5 
1. 060 
. 691 
•859 
. 420 
r 1 
1. 226 
. 802 
•96S 
•525 
2 
.989 
. 670 
. 76l 
.451 
3 
1. 346 
•935 
I- 123 
•599 
4 
I-I77 
• 7 2 9 
•949 
• 565 
5 
1. 070 
. 742 
. 840 
•433 
Tabl3 III. —Coefficients of digestibility of nitrogen 
Period No. (10days). 
I (com) 
II (blood albumen) 
III (skim milk) 
IV (egg albumen) 
Pig No. 
Apparent 
digesti¬ 
bility .0 
Pepsin- 
hydro¬ 
chloric acid 
method. 
Pepsin- 
pancreatin 
method. 
Jordan’s 
method. 
I 
74. 26 
92. 52 
95-89 
86. 49 
2 
74- 79 
92. 34 
96- 34 
86. 64 
3 
70. 86 
91- 52 
95-43 
84. 65 
4 
75- 74 
9 1 II III IV - 58 
95-44 
86. 53 
5 
75 -ii 
93- 55 
96- 47 
86. 19 
1 
105- 33 
98. 48 
101. 04 
102. 80 
2 
112. 96 
106. 22 
102. 27 
109. 18 
3 
106, 18 
105.87 
101. 57 
101. 20 
4 
107.58 
106. 22 
102. 26 
102. 45 
1 5 
108. 22 
102. 92 
101. 80 
102. 21 
r 1 
96. 42 
96. 15 
95-33 
93- 50 
2 
104.44 
99.42 
96. 61 
98. 34 
3 
100. 00 
99-63 
98.15 
94 43 
4 
95- 97 
99. 01 
96.62 
94. 81 
l 5 
98. 93 
95.06 
97- 34 
96. 84 
1 
97. 09 
95-17 
95- 70 
95-09 
2 
108. 10 
101. 34 
96.08 
103. 45 
{ 3 
9 1 * 33 
96* 23 
97.87 
92. 98 
4 
92. 20 
94. 84 
98.12 
98.25 
5 
101. 01 
97- 14 
95- 33 
97.89 
a On basis of total nitrogen of the feces. 
