38 BULLETIN 1138, U. S. DEPARTMENT OF AGRICULTURE. 
PEN 71 PEN FZ 
LE PER CENT LUNGS” 2S PER CENT LUNGS 
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ee 2 | ot a I 
Ze Z Z LA 
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| 
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| | | | Ea pecsey be ix | i pao ey 
LVICH HORIZON IIL SFVICE REPRESENTS /O 277YS 
Fic. 37—Dried ox lungs; changes in weights of pigeons fed. 
AIM ER, FEN TF 
43. FER CENT LUNGS 25 FER CENT LUNGS 
po, SSR RRSENS See Sea 
Fae ee | 
LAOYA HORIZONTAL SPAICE REPRESENTS LOLA 
4“BO 
Fic. 38—Dried lamb lungs; changes in weights of pigeons fed. 
TESTS WITH CALF PANCREAS AND HOG PANCREAS. 
In Table 24 are presented the results of the feeding tests with calf 
pancreas and hog pancreas. Calf pancreas appears to have a rather 
low antineuritic value. The rations contaiming 15 and 25 per cent, 
respectively, of the tissue had practically the same value, the average 
survival period and the loss in weight being practically the same for 
the two pens of pigeons getting these rations. 
Hog pancreas appears to have a slightly higher antineuritic value 
than calf pancreas. The pigeons that were fed the ration containing 
15 per cent of hog pancreas showed an average survival period of 29 
days and a loss in weight of 23.2 per cent; while the birds that received 
25 per cent of hog pancreas in their food showed an average survival 
period of 41 days and a loss in weight of only 9.6 per cent. Two 
birds receiving this ration were in good condition at the close of the 
test on the fifty-fifth day. 
The changes in the weights of the pigeons during the test are shown 
in Figures 39 and 40. | 
Maw 
ree! 
