Nov. 2 7l 19x6 Energy Values of Red-Clover Hay and Maize Meal 385 
ENERGY EXPENDITURE PER KILOGRAM OF DRY MATTER 
A comparison of Periods I and II shows how much each additional 
kilogram of dry matter of the hay consumed increased the total heat 
production and its several factors (Table IX). 
Table IX .—Computation of energy expenditure per kilogram of clover hay 
Period No. 
Quantity of 
dry matter 
eaten. 
Total heat 
production 
Distribution of heat production. 
Standing. 
Rising 
and lying 
down. 
Fermen¬ 
tation. 
Remain¬ 
der. 
Gm. 
Cal. 
Cal. 
Cal. 
Cal. 
Cal. 
5 > 95 2 - 3 
12,251.3 
1,584 
, 72 
777 
9, 818 
II.. 
3 > 94 1 - 5 
10, 332. 9 
1,287 
no 
545 
8, 39 i 
Difference . 
2,010. 8 
1,918.4 
297 
-38 
232 
1,427 
Difference per kilo- 
gram of dry mat- 
ter. 
954-0 
148 
-19 
IX S 
710 
In making the computation for the maize meal fed in Periods III, IV, 
and V, when hay and meal were fed, the increase in the heat production 
due to the differences in the quantity of hay consumed, computed by the 
use of the value per kilogram of dry matter just obtained, has to be sub¬ 
tracted from the total increment in the manner shown in the following 
example (Table X): 
Table X .—Computation of energy expenditure per kilogram of maize meal 
Period No. 
Quantity of dry matter 
eaten. 
Total 
heat 
produc¬ 
tion. 
Distribution of heat production. 
Hay. 
Grain. 
Stand¬ 
ing. 
Rising 
and 
lying 
down. 
Fer¬ 
menta¬ 
tion. 
Re¬ 
main¬ 
der. 
Gm. 
Gm. 
Cal. 
Cal. 
Cal. 
Cal. 
Cal. 
Period IV... 
2,271. 7 
4, 363- 0 
14, 129. 0 
I, 879 
127 
I, 026 
11,097 
Period V. 
908.7 
1, 747 - 5 
97 8 54 - 7 
I, 183 
xx 3 
598 
7 » 96 1 
Difference. 
1,363- 0 
2,615. S 
4, 274. 3 
696 
14 
428 
3,136 
Difference due to 
i,363.ogm.ofhay. 
i, 300. 3 
202 
—26 
x 57 
968 
Difference due to 
2,615.5 gm. of 
grain. 
2,974. 0 
494 
+40 
271 
2,168 
Difference per kilo¬ 
gram of grain.... 
D I 37 - 1 
189 
T 5 
104 
829 
Six comparisons according to this method are possible affording the 
results given in Table XI. 
