ILLINOIS STATE DAIRYMEN'S ASSOCIATION. 247 



We really oannot fail to note that Eva gave 48 per cent, miore milk 

 and 11 per cent, more fat on the same amount of grain and, with an excess 

 of roughness' amounting to only 112 poundis, or7.6percent.. This points 

 to two principles, namely, that some cows are vastly more economical 

 consumers of feed than are others and that the character of pilk produced 

 Is so different that one animal may excel in millc and another excel in fat. 

 These cows were both mature^ we re fresh on the same day,, neither suffer- 

 ed accident during the experiment, yet Eiva produced 1057 pounds of milfc 

 and 12 pounds of fatoutof an extra feed of 112 poundte' of hay) and, corn sto- 

 ver. This difference in favor of Eva is far greater than any per cent, of 

 profit the dairyman may hope tO' make, and' it teaches that in the last an- 

 alysis profits will dependl upon careful selection of the animal machine 

 that is to transform hay and grain into milk and fat and money. 



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