﻿44 



BULLETIN 113$, U. S. DEPARTMENT OF AGEIOUL.TTJEE. 



of the other animal products that have been tested. Figure 45 

 shows the changes in weight of the pigeons fed the blood rations. 



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 Fig. 4.5. — 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 2S 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 pancreas, tripe, serum, ox blood, calf blood, and ox-blood cor- 

 puscles. 



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 liver. 



The heart, kidney, spleen, brain, lungs, pancreas, stomach, and 

 blood, respectively, each had practically the same antineuritic 

 value regardless of source. 



