MILK PRODUCTION AND BODY INCREASE OF DAIRY COWS 35 
Table II. — Apparent digestibility of ration — Cow 615 
Dry 
matter 
Or- 
ganic 
matter 
Pro- 
tein 
Non- 
pro- 
tein 
Crude 
fiber 
Nitro- 
gen- 
free ex- 
tract 
Ether 
ex- 
tract 
Total c 
IS" | S£ 
Energy 
Period I 
Salt 
Grams 
10.0 
4, 447. 8 
2, 993. 
Grams 
Grams 
Grams 
Grams 
Grams 
Grams 
Grams | Grams 
Calories 
Grain mixture 
Alfalfa hay. 
4, 249. 
2, 748. 8 
620.3 
440.4 
17.8 
80.8 
364.1 
826.3 
3, 030. 7 
1,326.5 
208.8 
74.9 
109.6 12,052.4 
87.6 1,369.2 
20, 235. 
13, 276. 3 
Total eaten. . 
7, 450. 8 
2, 450. 3 
6, 997. 8 
2,204. 1 
1, 060. 7 
294.2 
98.6 1,190.4 
24. | 786. 7 
4, 357. 2 
1, 039. 1 
283.7 
60.2 
197.2 13,421.6 
52.2 1.150.5 
33,511.3 
11,397.3 
5, 000. 5 
67.11 
4, 793. 7 
68.50 
766.5 
72.26 
74. 6 j 403. 7 
75. 66' 33. 91 
3, 318. 1 
76.15 
223.5 
78.78 
145.0 
73.53 
2, 271. 1 
66.38 
22, 114. 
Coefficient of di- 
gestibility. 
65. 99 
Period II 
Salt 
10.0 
4, 403. 1 
3, 018. 4 
i 
Grain mixture 
Alfalfa hay 
4,210.1 i 612.8 
2, 770. 4 \ 424. 7 
21. 1 | 363. 2 i2, 998. 2 
89.8 ! 829.0 j 1,350.0 
212.7 
76.9 
109.1 
87.1 
2, 027. 8 
1, 381. 2 
20, 026. 9 
13, 380. 9 
Total eaten. . 
7,431.5 
2, 385. 1 
6, 980. 5 
2, 145. 6 
1, 037. 5 
248.1 
110.9 
57.7 
1,192.2 4,348.2 
738.1 1,035.7 
289.6 
65.9 
196.2 
52.0 
3, 409. 
1, 120. 3 
33, 407. 8 
11, 076. 7 
Digested 
Coefficient of di- 
gestibility 
5, 046. 4 
67.90 
4, 834. 9 
69.26 
789.4 
76.09 
53. 2 454. 1 
47. 97 38. 09 
3, 312. 5 
76.18 
223.7 
77.24 
144.2 
73.50 
2, 288. 7 
67.14 
22, 331. 1 
66.84 
Period III 
Salt 
10.0 
4, 365. 8 
3, 038. 2 
Grain mixture 
Alfalfa hay 
4, 175. 1 601. 2 
2.777.5 444.3 
28.5 
96.5 
349.6 
832.8 
2, 994. 1 
1, 323. 
200.0 
80.8 
108.7 
91.6 
2, 012. 3 
1, 390. 6 
19,841.1 
13.491.2 
Total eaten.. 
7,414.0 
2, 404. 3 
6,952.5 1,045.5 
2, 158. 5 | 288. 4 
125.0 
22.3 
1, 182. 4 
815. 1 
4, 317. 1 
974.6 
280.8 
58.3 
200.3 
59.7 
3,402.9 133,332.3 
1,125.1 11.125.3 
Digested 
Coefficient of di- 
gestibility. 
5,009.7 
67.57 
4, 794. 757. 1 
68. 95 72. 42 
102. 7 367. 3 
82. 16' 31. 06 
1 
3, 342. 5 
77.42 
222.5 
79.24 
140.6 
70.19 
2, 277. 8 
66.94 
22, 207. 
66.62 
Table III. — Apparent digestibility of ration — Cow 579 
Dry 
matter 
Or- 
ganic 
matter 
Pro- 
tein 
Non- 
pro- 
tein 
Crude 
fiber 
Nitro- 
gen- 
free ex- 
tract 
Ether 
ex- 
tract 
Total 
nitro- 
gen 
Car- 
bon 
Energy 
Period I 
Salt 
Grams 
10.0 
4, 820. 6 
3, 346. 8 
Grams 
Grams 
Grams 
Grams 
Grams 
Grams 
Grams 
Grams 
Calories 
Grain mixture 
A lfalfa hay 
4, 609. 3 
3.071.8 
670.9 
470.9 
23. 1 397. 6 
99.6 919.2 
3, 282. 5 
1,496.9 
232.8 
85.3 
119.4 
96.5 
2, 220. 1 
1,531.5 
21,925.9 
14.836 7 
Total eaten 
Feces 
8,177.4 7,681.1 
2,481.8 2,211.8 
1,141.8 
281.1 
122.7 1,316.8 
42.5 , 815.3 
4, 779. 4 
1,008.8 
318.1 
64.1 
215.9 
54.0 
3,751.6 
1,154.0 
36,762.6 
11,459.0 
Digested 
Coefficient of di- 
gestibility 
5,695.6 5,469.3 
69.651 71.20 
860.7 
75.38 
80. 2 501. 5 
65. 36 38. 08 
3, 770. 6 
78.89 
254.0 161.9 
79. 85 74. 99 
2, 597. 6 
69.24 
25,303.6 
68.83 
Period II 
Salt 
10.0 
4,804.0 
3, 368. 7 
i 
I 
Grain mixture 
4, 594. 1 
3. 079. 6 
661.8 
492.7 
31.4 | 384.7 
107.0 j 923.4 
3,294.6 220.6 j 119.6 2,214.4 
1,466.9 j 89.6 ' 101.6 1,541.8 
21,832.6 
14,958.8 
Total eaten... 
Feces 
8,182.7 7,673.7 1,154.5 
2.529.0 2,266.3 283.2 
138.4 1,308.1 
51.7 j 837.1 
4, 761. 5 
1,031.5 
309.6 221.2 3,756.2 
62.6 ! 56.3 ;1, 180. 7 
36,791.4 
11,655.5 
Digested 
Coefficient of di- 
gestibility 
5,653.7 5,407.4 
69. 09 70. 47 
871.3 
75.47 
86.7 j 471.0 
62. 64 36. 01 
3, 730. 
78.34 
247.0 164.9 2,575.5 
79. 78 74. 55! 68. 57 
25,135.9 
68.32 
