393 



Fig. 8. Scrub cow 

 no. 56. Best record, 

 4975.0 Ibs. milk and 

 253.13 Ibs. fat. Age 

 five years when pho- 

 tographed. 



ig. 9. 



Scrub no. 77, out of 

 scrub cow no. 56. Four 

 year old record, 8689.3 

 Ibs. milk and 321.31 

 Ibs. fat, an increase of 

 75% in milk, 27% in 

 fat and $6.80 in profit 

 over dam's best rec- 

 ord. Age five years 

 when photographed. 



Fig. 10. Second gen- 

 eration Holstein grade 

 no. 282 out of Hol- 

 stein x Scrub cow 77. 

 Age seven months 

 when photographed. 



comparison in any way as none of the scrub cows have daughters, 

 by more than one purebred sire, in milk. The variation in the 

 production of the dams themselves, and the fact that for this 

 preliminary report the records of such a small number of heifers 

 of purebred sires are available, also renders this impossible. 

 Furthermore, the sires were not selected with this in view but 

 were the bulls in use in our purebred herds with one exception, 

 which is noted later. 



In the case of the heifers by the Holstein sire it will be noted 

 that when the best record made by each heifer is compared to the 



