332 
Journal of Agricultural Research 
Vol. XXI, No. 5 
making calculations for thermal value, 1,800 calories were used for each 
pound of carbohydrate and protein and 4,060 calories for each pound of 
fat. On the basis of these figures of thermal value, composition, and the 
amount of corn consumed in the different 100-day periods, the total 
therms in corn consumed were calculated. The small thermal value in 
the organic matter of the protein-free skim milk was omitted from these 
figures. The figures as obtained are found in Table XXII. The chief 
value of these figures is to obtain data to use in calculations given further 
on. 
Table XXII .—Weight of nutrients and therms in corn consumed 
PIG FED CORN AND ASH 
Period. 
Total 
com con¬ 
sumed. 
Carbo¬ 
hydrates 
in com. 
Therms 
in carbo¬ 
hydrates. 
Fat in 
com. 
Therms 
in fat. 
Protein 
in com. 
Therms 
in 
protein. 
Total 
therms 
in com. 
Days . 
Pounds . 
Pounds . 
Pounds . 
Pounds . 
0 to IOO®. ... 
121. 50 
9 1 * 13 
164. 03 
4.62 
18. 76 
11. 72 
21. 10 
213.89 
100 to 200. 
69. 70 
52. 28 
94.10 
2. 65 
10. 75 
6. 73 
12.11 
116. 96 
200 to 300... 
72.40 
54- 30 
97- 74 
2. 75 
11. 17 
6. 99 
12. 58 
121.49 
300 to 400. 
97. 70 
73. 28 
131. 90 
3- 7i 
15- 06 
9- 43 
16. 97 
163. 93 
400 to 500. 
143. 45 
107. 59 
193- 66 
5- 45 
22. 12 
13. 84 
24. 91 
240. 69 
500 to 600. 
236. 00 
177. 00 
318. 60 
8. 97 
36.41 
22. 77 
40. 99 
396. 00 
600 to 700. 
228. 00 
171.00 
307- 80 
8.66 
35-16 
22. 00 
39- 60 
382. 56 
700 to 800. 
383. 80 
287. 85 
518. 13 
14. 58 
59- 19 
37- 04 
66. 67 
643- 99 
800 to 900. 
560. 60 
420. 45 
756. 81 
. 21.30 
86.48 
54- 10 
97- 38 
940. 67 
900 to 923. 
112. 05 
84. 04 
151. 27 
4. 26 
’ 17-30 
10. 81 
19. 46 
188. 03 
Total. 
2, 007. 20 
195-43 
PIG FED CORN AND PROTEIN-FREE SKIM MILK 
oto IOO °. 
81. 45 
61. 09 
109. 96 
3-io 
12. 59 
7.86 
14- 15 
136. 70 
IOO to 200. 
78. 30 
58. 73 
105. 71 
2.98 
12.10 
7- 56 
13- 61 
131. 42 
200 to 300.. . 
82. 00 
61. 50 
no. 70 
3-12 
12. 67 
7.91 
14. 24 
137- 61 
300 to 400. 
104. 60 
78.45 
141. 21 
3-97 
16. 12 
10. 09 
18. 16 
175- 49 
400 to 500. 
149. 05 
hi. 79 
201. 22 
5-66 
22.98 
14. 38 
25. 88 
250. 08 
500 to 600. 
224. 60 
168. 45 
303. 21 
8.53 
34- 63 
21. 67 
39. 01 
376. 85 
600 to 700. 
220. 00 
165. 00 
297. 00 
8. 36 
33- 94 
21. 23 
38. 21 
369-15 
700 to 800. 
409. 00 
306. 75 
552-15 
15- 54 
63. 09 
39- 47 
7i. 05 
686. 29 
800 to 900. 
425- 65 
319- 24 
574.63 
16.17 
65. 65 
41. 08 
73- 94 
714. 22 
900 to 923. 
121. 40 
91. 05 
163. 89 
4. 61 
18. 72 
n. 72 
21. 10 
203. 71 
Total. 
1, 898. 05 
182. 97 
PIG FED CORN ALONE 
0 to 100 6 . 
93- 99 
70. 49 
126. 88 
3- 57 
14. 49 
9- 07 
16.33 
157- 70 
IOO to 200. 
in. 47 
83. 60 
150. 48 
4. 24 
17. 21 
10. 75 
19. 35 
187. 04 
200 tO 300. 
121. 00 
90- 75 
163. 35 
4. 60 
18. 68 
11. 68 
21. 02 
203. 05 
300 to 400. 
201. 40 
I5i- 05 
271. 89 
7- 65 
31. 06 
19. 44 
34- 99 
337- 94 
400 to 500. 
239. 10 
179- 33 
322. 79 
9.09 
36.91 
23. 07 
41- 53 
401. 23 
500 to 600. 
192. 00 
144. 00 
259. 20 
7- 30 
29. 63 
18. 53 
33- 35 
322. 18 
600 to 700. 
200. OO 
150. 00 
270. 00 
7. 60 
30. 86 
19.30 
34- 74 
335- 60 
700 to 800. 
329- 90 
247- 43 
445-37 
13- 54 
50.91 
31. 84 
57- 3i 
553- 59 
800 to 900. 
548. 80 
411. 60 
74a 88 
2a 85 
84- 65 
52. 96 
95- 33 
920. 86 
900 to 1,000. 
676. 00 
507.00 
912. 60 
25. 69 
104. 30 
65- 23 
117. 41 
1.134.31 
I, 000 to 1,060. 
386. 00 
289. 50 
521. 10 
14. 67 
59- 56 
37- 25 
67. 05 
647. 7i 
Total. 
3, 099. 66 
299. 12 
« 
° No data for 3 X A months preceding experiment. 
6 No data for 4M months preceding experiment 
