﻿10 



BULLETIN 1138, U. S. DEPARTMENT OF AGRICULTURE. 



I 'ens 9 and 10 wore fed rations containing 15 and 25 per cent, 

 respectively, of ox tongue. Approximately a dozen tongues were 

 used in preparing this lot of dried tissue. The results are similiar 

 to those obtained with pens 7 and 8. Pen 9 contained one of the 

 \ civ resistant types of birds, No. 79, which materially lengthened 

 the survival period of the pen to 32 days, that of the three other 

 birds in the pen being 24 days. If allowance is made for this bird, 

 it appears that there was no material difference in the antineuritic 

 values of the rations containing 15 and 25 per cent, respectively, 

 of ox tongue. The details are shown in Table 3 and Figure 8. 



Table 3. — E.> ■•/>< ■/ -inn ntal feeding of dried ox tongue and polished rice. 



Meat ration. 



Pigeon 

 Xo. 



Survival 

 period. 



Change in 

 weight. 



Result. 



PEN 9. 



Do 



Do 



Do 



77 



3 



79 



Dnv?. 

 18 

 25 

 30 

 55 



Per cent. 



-3.3 

 -21.3 



-9.6 

 -34.2 



Polyneuritis. 

 Do. 

 Do. 







Average 





32 



-17.2 





PEN 10. 



25 per cent ox tongue Xo. 611 



Do 



73 



74 

 75 

 72 



21 

 21 

 25 

 49 



+5.9 

 + 10.6 



-5.7 

 -16.7 



Polyneuritis. 

 Do. 



Do 



Do. 



Do... 



Do. 











29 



-1.5 











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■*2o 



S80 



360 



V) 3*0 



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\soo 



12SO 

 260 

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 220 

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 Fig. 8.— Dried ox tongue: changes in weights of pigeons fed. 



Pens 11 to 14, inclusive, were fed muscle tissue derived from veal 

 calves. The hind quarters from two carcasses of the best grade of 

 medium-weight veal were used. The results from these tests are 

 very similar to those obtained in feeding the same percentages of 

 muscle from the mature ox. The average survival period of all the 

 pigeons fed calf muscle was 27.9 days, while that of the birds receiv- 

 ing muscle from the mature ox was 26.6 days. The slight difference 

 is not material. The results are shown in Table 4 and Figures 9 

 and 10. 



