FUNCTIONS OF THE NUTRIENTS 



169 



Table XXX 



Total energy of feed — 

 Timothy hay 

 Grain mixture. No. 1 



Total 



Energy of excreta — 



Feces 



Urine . 

 Methane 



Total 



Metabolizable energy 



Period 2 Period 3 



Calories Calories 



. 12,477 12,618 

 . 12,549 



25,026 12,618 



7,371 5,247 



1,536 627 



2,098 1,057 



11,005 6,931 



14,021 5,687 



The above computation is for a mixed ration contain- 

 ing both coarse fodder and grain. In order to ascertain 

 the losses from the grain itself, those for the hay having 

 been determined by other experiments, the following 

 computation was necessary: 



Table XXXI 



249. Distribution of losses of food energy. — ^In the 



next table there are given for eight individual feeding- 

 stuffs and several mixed rations and grain mixtures the 

 percentage of losses through the different avenues and 



