June i, 1921 
Effect of Ration on the Development of Pigs 
299 
pig the pounds of protein were calculated. These weights of protein, 
arranged in the order of increasing weights, are found in Table VII. 
This same table gives also the ratio between the weight of protein and 
the weight of the internal organs. 
Table VI .—Relation of the weight of lungs, heart, liver, and kidneys to the empty weight 
Experi¬ 
ment 
Ration. 
No. 
Ill. 
VI. 
VI. 
III . 
IV . 
V . 
Ill. 
III . 
VI . 
IV . 
IV. 
II. 
IV . 
V . 
V . 
II . 
VI. 
VI. 
IV. 
VI. 
VI. 
VI. 
IV. 
V . 
V . 
IV. 
III . 
III-V. . . 
III-V. . 
II. 
II. 
Com and protein-free skim milk. 
Com alone. 
Com and ash. 
.do... 
Alfalfa pasture.. 
Com alone. 
.do. 
Alfalfa pasture. 
Com and ash-free blood protein. 
Corn and ash. 
Com alone. 
Corn and ash. 
Corn and protein-free skim milk. 
Com and casein every seventh 
day. 
Corn and corn germ. 
Com alone. 
Com, ash-free blood protein, 
and ash. 
Corn, starch, casein, and ash... 
Corn and albumin (small 
amounts). 
Com, casein reducing, and ash.. 
Com, casein 1 to and ash... 
Com, casein 1 to 3, and ash. 
Com and milk protein every 
seventh day. 
Com and casein 1 to 3.. 
Com and albumin (large 
amounts). 
Com and casein 1 to 3. 
Com and milk protein 1 to 3... 
Com and synthetic ash. 
Corn and protein-free skim milk. 
Com and black-blood albumen. 
Com, black-blood albumen, and 
ash. 
Empty 
weight. 
Pounds. 
28. 06 
28. 60 
34- 37 
45.62 
51-25 
62.71 
63.28 
63.60 
72. 18 
86. 40 
105. 25 
122. 80 
127. 45 
139. 84 
140. 44 
141. 49 
156. 86 
159- 35 
180. 99 
192. 20 
195. 66 
199. 71 
209. 95 
211. 22 
245* * 15 
282. 58 
318. 93 
364- 52 
366. 42 
378. 20 
389. 26 
Lungs. 
Pounds. 
I. 68 
1. 04 
.82 
.68 
.82 
.92 
• 53 
.98 
•94 
i- 59 
2. 06 
1.36 
1.38 
1. 08 
1. 04 
1. 56 
.96 
1. 42 
i -35 
1. 22 
1. 34 
1. 65 
1.44 
1. 52 
1. 62 
2. 82 
2. 89 
1. 90 
2. 08 
2. 62 
2. 55 
Heart. 
Pounds. 
O.25 
. 16 
.18 
. 16 
. 22 
.24 
•i 7 
•23 
.24 
. 26 
•36 
•32 
•36 
.46 
.42 
• 5 o 
•32 
.40 
•49 
•36 
.44 
.38 
.91 
.66 
.72 
.72 
•63 
1. 00 
.96 
.88 
.98 
Liver. 
Pounds. 
o. 88 
1. 04 
.84 
• 74 
1. 12 
1. 54 
• 56 
1. 61 
1. 20 
1. 58 
1. 56 
2. 14 
2.36 
2. 64 
2. 78 
2. 06 
2. 60 
2. 56 
2. 17 
3 * °4 
3 - 36 
3 - °4 
1. 90 
2. 98 
3. 02 
3. 66 
4. 81 
5-40 
4. 86 
4 - 34 
4. 00 
Kidneys. 
Pounds. 
0.15 
. 12 
. 10 
•13 
.24 
.24 
. II 
•30 
. 28 
•17 
. 20 
.24 
. 22 
•30 
•34 
•32 
.46 
.38 
.29 
.46 
•50 
.69 
1. 06 
.58 
•44 
•50 
•95 
•50 
.58 
. 62 
•85 
A study of Table VII shows that: 
1. In general the weights of these internal organs increase with the 
increase in weight of protein. 
2. The variations are irregular and do not seem to have any specific 
relation to the character of the ration. The variation from the normal 
must be due to the individuality of the animal. 
3. A ration which contains the nutrients for the normal development 
of the pig will develop the internal organs in the same ratio. 
