72 PROFITABLE DAIRYING 



Each generation of cows should be better than the 

 preceding one. If this is not so it is the fault of the 

 man. Lou Dillon did not trot a mile in 1 158^4 

 purely by inherited powers. None of her ancestors 

 ever showed their capacity to equal her performance. 

 Inherited powers are conceded to exercise a powerful 

 effect; but increased power, developed by environ- 

 ment and training, must be added to make the two- 

 minute horse possible. The same is true of the heifer 

 being reared. The raiser has as much to do with 

 developing her into a profitable machine as the man 

 who bred her; as much as her father and mother. 



The properly reared heifer resulting from the cross 

 of the Ayrshire father upon the Jersey mother can be 

 depended upon at four years to produce 300 or more 

 pounds of butter and 5,000 pounds of milk. 



