114 



M-XNTJAJi OF OATTLE-FEEDHNTG. 



grammes * of hay, together with the necessary amoiint of 

 water. In fodder and e.\crements were found the follow- 

 ing amounts of carbon and nitrogen : 



In Fodder — 



Hay 



Water , 



Jn Excrement s- 



Bung' , 



Urine 



Expired air. . . . . 



Betained in body 



Carbon. 

 G-rms. 



Nitrogen, 

 Grins. 



460.1 



18.1 



0.1 



.0 



460.2 



18.1 



203 5 



8.45 



m,2 



7.65 



213 8 



» * * « 



439.5 



10.10 



20.7 



2.0O 



Taking first the gain of nitrogen, we find that 



2 grms. X 6.25 = 12.50 grms. of pi'otein. 

 2 " X 29.4 r= 58.80 " " flesh. 



and, tlierefore, that the animal had gained 58.8 grms. of 

 flesli in twenty-four hours. 



Taking next the gain of carbon, we have to consider 

 how much of it is due to the gain of flesh, and how much 

 to a deposition of fat. The albuminoids contain on an 

 average (p. IT) 63 per cent, of carbon, and hence the 12.5 

 grms. of albuminoids gained in this experiment contained 

 0.6 grms. of this element. Out of the total gain of 20.Y 



* One gramme = 15.43 grains; 1,000 grammes = 1 kilogramme = 

 about 2. 2 lbs. 



