

399 



Fig. 19. Scrub cow 

 no. 31. Color, brindle 

 and white. Best rec- 

 ord 4258.6 Ibs. milk, 

 215.02 Ibs. fat. Age 

 eight years when pho- 

 tographed. 



Fig. 20. Jersey x 

 Scrub cow no. 174 out 

 of scrub cow no. 31. 

 Color, dark fawn. Two 

 year old record, 4232.2 

 Ibs. milk and 236.24 

 Ibs. fat, an increase of 

 10% in fat over dam's 

 record. Age two years 

 when photographed. 



utilizing food above her maintenance requirement. 5 The above 

 work was conducted with purebred animals all of which had been 

 kept under similar conditions. 



In connection with the work on scrub cows already described, 

 feeding and digestion trials were conducted with calves from the 

 scrub cows and sired by a scrub bull while grade Shorthorn and 

 Angus calves were used as a check lot. 



Four scrub and four grade calves were used originally, there 

 were two bulls and two heifers in each lot, but as one of the 



5 Eckles, C. H. and Reed, O. E. A Study of the Cause of Wide Variation in Milk 

 Production by Dairy Cows. Res. Bull. Missouri Ag. Exp. Sta. 2. April, 1910. 



Fig. 22. Guernsey 

 x Scrub heifer calf 

 no. 288 out of scrub 

 cow no. 31. Color, 

 fawn, white markings. 

 Age six months when 

 photographed. First 

 generation calves by 

 present Guernsey herd 

 bull are all well mark- 

 ed but those by first 

 were not. 



