“Pounds fat’ | Pounds fat |, © 
eaten. digested. 
id 
; Terseys voveeeeeereesereeeeee ees 3884.2 | 2706.2 | 
; er cares RN DAR AT : 3756.6 | 2486.2 
PSSHOLEDOMMNE, bed a% cues CS Se v's LOL ak) eens 
Porites is! 
It appears that thers was upon an average 7.2 per cent more ~ 
fat recovered in the milk than was digested in the food fed; also — 
that there was upon an average 69.2 per cent of the fat in the 
_ food actually digested according to the tables used in compila- : 
tion of these results; also that had 74.2 per cent of the fat of the 
food digested, it Poald have equalled the amount recovered in 
the milk. . 
_ In this connection it is to be considered that over eighty per 
cent of the digestible fat is in the highly concentrated mill feeds — : 
and grain, the average of digestible fat inwhich has beenestimated _ 
above at 6.99 per cent, while had it been only 0.38 per cent more, ed 
or 7.87 per cent, it would have been sufficient to meet all demands : hr 
hae upon the animal for the fat produced in the milk and the increase 
in live weight of the animals during the trial, for which 3944. 
pounds of total increase in live weight 8.7 per cent, or 343 pounds 
of fat are allowed. rae 
_ Those familiar with the variation in the consumption of eieeat | 
concentrated food-products will not think that the allowance of © 
0.38 per cent remarkable, nor unlikely in the case of these pene t ‘ 
been chosen with especial care, nor when we consider that in our 
most carefully conducted digestion experiments a difference of a 
_ few per cent in the coefficient of digestibility is quite within the 
; page of aoe error. 

