990 
Journal of Agricultural Research 
Vol. XXXI, No. 10 
THE BALANCE OF MATTER 
From the data for balance of matter, in Table IV, it will be noted 
that with decreased feed intake there was marked decrease in methane 
elimination, but when we relate the amount of the methane to the 
amount of the feed we see that with decrease in feed intake there 
was a slight increase in the methane production per kilogram of dry 
matter of feed. Thus in Periods I, III, and V, with feed intake of 
6,638, 5,320, and 3,052 grams, respectively, the methane production 
per kilogram of dry matter of feed was 18.769, 19.453, and 21.871 
grams, respectively. 
Table IV .—Balance of matter and energy per day and head 
Income: 
Alfalfa hay. 
Water_ 
Total- 
Outgo, Group I: 
Feces. 
Urine- 
Methane_ 
Total. 
Metabolizable.. 
Outgo, Group II: 
Hair and brush- 
ings.. 
Carbon dioxide. 
Water vapor.... 
Body balances: 
Water. 
Protein_ 
Fat__ 
Computed heat- 
Observed heat. 
Period I 
Dry 
matter 
Grams 
i, 638.3 
6,638.3 
2,663.2 
723.0 
137.95 
12.7 
4,719.0 
+93.0 
+180.5 
Water 
Grams 
6,332.0 
13,295.0 
19,627.0 
9,710.1 
8,316.3 
1.1 
4," 587." 5 
-2,988.0 
Nitro¬ 
gen 
Car¬ 
bon 
Grams . Grams Calories 
172.0, 2,980.2 28,921.1 
Energy 
172.0 2,980.2 28,921.1 5,320.2 
40.2 1,230.9 
115.2 166.8 
_I 103.2 
Period III 
Dry 
matter 
Grams 
5,320.2 
Water 
Grams 
4,675.0 
16,100.0 
11,924.3 
“1,819.5 
1,840.8 
15,584.6 
13,336.5 
1.0 5.5 60,7 
....I 1,286.9_ 
+15.5 +48.9 “+414.6 
| +138.0 
+1,714.3 
11,146. 
11,088.5 
Period V 
Income: 
Alfalfa hay^ _ 
Grams 
3,052.4 
Grams 
4,458.0 
6,975.0 
Grams 
78.1 
Grams 
1,381.8 
Calories 
13,298.4 
Grams\ Grams 
6 6,670.7i 7,846.0 
Grams 
168.7 
Grams 
2,996.7 
Calories 
29,175.6 
"YY" ater 
|16,240.0 
Total_ 
3,052.4 
1,108.5 
362.1 
11,433.0 
4,938.0 
4,117.6 
78.1 
1,381.8 
511.3 
13,298.4 
6,670.7 
24,086.0 
168.7 
2,996.7 
29,175.6 
Outgo, Group I: 
Feces _ 
20.0 
5,010.4 
2,786.9 
11,798.0 
46.0 
1,273.0 
12,600.0 
Urine_ 
65.3 
98.1 
“865.2 
677.3 
7,357.5 
107.1 
161.5 
“1,666.6 
Methane. 
68.4 
51.2 
912.8 
125.2 
93.7 
1,670.7 
Tnt.ftl 
6,788.4 
6,510.0 
60.7 
15,937.3 
M otahnl i 7aW P 
13,238.3 
Outgo, Group III: 
Hair and brush- 
ings _ _ _ 
12.7 
1.1 
1.0 
5.5 
12.7 
1.1 
1.0 
5.5 
60.7 
Carbon dioxide __ 
W of at* vftiinr 
2,850.8 
777.4 
4,593.3 
1,252.6 
2,509.1 
4,547.1 
+382.3 
it olol V apui -- 
Body balances: 
X)IT offtf 
-132.8 
VY .. .. 
—49.2 
-8.2 
-25.8 
“—219.3 
+87.6 
+14.6 
+46.0 
“ +390.5 
X 1 UtvlLL 
—46.9 
-35.9 
-445.6 
+215.0 
+164.4 
+2,042.1 
T at.-......-— 
P.AtnrMifn^ Vinof 
7,114.2 
7,303.7 
10,745.0 
nhcnrvo/i Vinot 
10 ,886.0 
2,104.8 
561.6 
112.9 
20,775.0 
9,493.0 
5,366.2 
12.7 
4,054.0 
+49.8 
+59.7, 
1.1 
3,740.2 
+2,174.5 
Nitro¬ 
gen 
Car¬ 
bon 
Grams 
139.1 
139.1 
36.1 
93.7 
Grams 
2,382.4 
2,382.4 
977.5 
137.5 
84.5 
5.5 
+8.3 
+26.2 
+45.7 
Energy 
Calories 
23,178.5 
23,178.5 
9,601.8 
“1,420.1 
1,506.5 
12,528.4 
10,650.1 
60.7 
“+ 221.1 
+567.2 
9,801.1 
9,723.3 
Period II 
° Corrected to nitrogen equilibrium. 
* Alfalfa meal. 
