June i, 1921 
Effect of Ration on the Development of Pigs 
3i5 
Table) XII.— Relation of protein stored to protein consumed 
Protein consumed. 
Experi¬ 
ment No. 
Ration. 
Protein 
stored. 
From 
corn. 
From 
supple¬ 
ment 
Ratio. 
II 
Com and black blood albumen. 
Pounds. 
26. 28 
Pounds. 
!° 5 - 97 
118. 20 
Pounds. 
I29. 21 
142.25 
1 :8. 95 
1 : 10. 73 
II. 
Corn and black blood albumen and ash 
24.27 
v 
Com and com germ. 
13-36 
7 - 15 
l8. 24 
31.07 
22 . 27 
39 - 29 
21. 47 
23.61 
41. 66 
1 : 3 - 93 
1 : 6. 40 
1 : 4 - 43 
vi.'....:: 
Com and ash-free blood protein. 
VI. 
Com, ash-free blood protein, and ash. 
VI. 
Com, starch, casein, and ash. 
l6. 85 
24. 84 
22. 61 
1 : 2.85 
When corn was fed alone, the protein was stored in a ratio of 1 to 7.5; 
with com germ this ratio was nearly halved, showing the superiority of 
the protein in the germ over the proteins in the kernel as a whole. The 
ration com, starch, casein, and ash resulted in a larger proportion of 
protein storage in relation to the amount fed than any other ration in 
this entire series of experiments. It was a wide ratio, but nearly half of 
the protein came from milk. 
The pigs fed the black blood albumen and the ash-free blood protein 
were fed protein in too large amounts, hence the wide ratio. 
GRAPHIC PRESENTATION OP THE RELATION BETWEEN THE AMOUNT OF 
protein consumed and the amount of PROTEIN stored 
The quantitative relations between the amount of protein stored and 
the amounts of protein consumed are given in figure 15. The bars are 
arranged according to the increase in protein storage. These bars, jre p- 
resenting the amount of protein stored, present a gradually rising curve. 
This is in contrast to the very irregular heights of the bars representing 
the amounts of protein consumed. This simply means that the power 
of the pig to store protein is limited. If protein is fed in small amounts 
and the protein is of the right kind, as milk protein fed in small amounts, 
then the ratio between the amount of protein consumed and the amount 
of protein stored will be narrow. When protein is fed in large amounts, 
the amount stored will not be increased in proportion no matter what 
the character of the protein, but it will be stored in a wide ratio. 1 The 
excess of protein fed will be used for the production of fat or energy. 
When supplementary proteins were fed in too small amounts, the ratio 
of protein storage was wider than when these amounts were approxi¬ 
mately one-third of the total protein. 
The idea here presented should not be confused with rate of growtlu 
