+4 BULLETIN 1138, U. S. DEPARTMENT OF AGRICULTURE. 
of the other animal products that have been tested. Figure 45 
shows the changes in weight of the pigeons fed the blood rations. 
FEN BF FEN BS FEN BP FLN IO 
SPEER ACEIN GE 48 FER CENT 42 PER CLIVT LEV ADEE EV 
OX BLOOP CALF BLOOD OX CORPUSCLES OX SERUM 
L 
LACH HORIZONTAL SFYICE REFRESENTS /0O 27°95 
Fig. 45.—Dried ox and calf blood; changes in weights of pigeons fed 
SUMMARY OF PART II. 
In order to facilitate the interpretation of the results of the experi- 
ments reported in Part II of this bulletin Table 28 has been prepared 
in which are set forth the average data for each pen of pigeons fed. 
As has been stated before, the antineuritic value of a ration fed to 
pigeons must be judged, not only by the survival period of the birds, 
but also by the changes in their weights; and that basis for judgment 
has been followed here. 
The results of the experiments to determine the relative anti- 
neuritic properties of the edible viscera and blood from the ox, sheep, 
and hog may be summarized as follows: 
= 
I. ANTINEURITIC VALUES OF DIFFERENT ORGANS AND BLOOD FROM THE OX, HOG, AND 
SHEEP, RESPECTIVELY. 
The ox.—The heart had the highest value, followed closely by 
the kidney, and the liver. The other products had considerably 
lower values in the following order: Spleen, lungs, brain, calf thymus, 
calf a tripe, serum, ox blood, calf blood, and ox-blood cor- 
uscles. 
The hog.—The heart and liver had practically the same value and 
the kidney a slightly lower value. The spleen, pancreas, chitter- 
lings, and stomach, in order, had much lower values. 
The sheep.—The heart had the highest value, followed closely by 
the liver. The brain and lungs, in order, had much lower values. 
II) ANTINEURITIC VALUES OF THE SAME ORGAN FROM THE OX, SHEEP, AND HOG. 
Hog liver had the highest antineuritic value, but there was not 
much difference in the values of ox, calf, and lamb Itver. 
The heart, kidney, spleen, brain, lungs, pancreas, stomach, and 
blood, respectively, each had practically the same antineuritic 
value regardless of source. : 
ea ees 
