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MANUAL OF CATTLE-FEEDING-. 



Furtlier experiments by tlie same investigators, while 

 not always yielding as striking results as did these two, 

 confirmed in the main the conclusions drawn from them. 

 It was found, it is true, that the storing up of oxygen did 

 not always take place by night, as in these experiments ; 

 but the fact that oxygen may be retained in the body in 

 considerable quantities was fully established. 



One other important point was observed in Ilenneberg's 

 earlier experiments on this subject, viz., that the greatest 

 storing up of oxygen took place in those experiments in 

 which the fodder was richest in albuminoids. 



These experiments extended over only twelve hours, 

 corresponding to the "day" half of Pettenkofer & Yoit's 

 experiments, and in almost every ease it was found that 

 the carbonic acid excreted contained more oxygen than 

 was taken up by the body din-ing the same time, thus show- 

 ing a formation of carbonic acid at the expense of oxygen 

 previously stored up. The following summary of the re- 

 sults shows that this excess of oxj^gen was, in general, 

 greatest in those cases where most albuminoids were fed : 



Number 

 of Experi- 

 ment. 



Protein of fod- 

 der. 

 Lbs. 



Oxygen te,1<;en 

 up. 

 Lbs. 



Oxygen in car- 

 bonic acid. 

 Lbs. 



Eatio of the two. 



1. ...... 



0.79 



4.25 



5 42 



1 -.1.28 



2 



0.82 



2 63 



4 34 



1:1.65 



% 



0.80 



3.20 



4.65 



1 :1.45 



5 



0.89 



3.83 



6.01 



1 :1.57 



C 



0.78 



5.20 



6.67 



1 :1.28 



7 



•2.60 



3.00 



7.13 



1 : 2.38 



8 



2.51 



3.40 



7.63 



1 : 2 24 



