Nutrition. 



225 



In the preceding table the channels whereby loss occurred 

 to the system were the lungs, urine, skin, etc. ; but where 

 animals are yielding milk, wool, etc , these have also to be 

 taken into consideration, the milk especially causing a 

 considerable bod} 7 drain. 



In the following table by Henneberg, quoted by Tereg,* 

 we have a balance-sheet furnished for an ox fed for beef. 

 The food supply is here in excess of the requirements, and, 

 in consequence, material is stored up in the system. 



Henneberg fed a full-grown ox, weight 1. 570 35 lbs , for 

 28 days with 1102 lbs. of clover-hay, 13-224 lbs. of oat- 

 straw, 8154 lbs. of crushed beans, "132 lb. of salt, and 

 123'644 lbs. of water. During the experiment the animal 

 increased daily 2-281) lbs. in weight. 



The following table shows the income and expenditure 

 occurring in the body during the above observation. The 

 author offers no explanation of the discrepancy occurring 

 in the income and expenditure of hydrogen and oxygen : 



The difference represents the amount of material stored 

 up daily in the body of this animal. 



* Ellenberger's ' Physiologie.' 



15 



