106 DAIRY CATTLE AND MILK PRODUCTION 



lactation period, but are not persistent milkers. In a report 

 made by the New York Experiment Station, the average 

 butter fat test for 72 head of cattle was 4.15 per cent. Yields 

 of 5000 pounds of milk per year have been reported. The 

 interests of this breed are looked after in America by the 

 American Devon Herd Book Association. The first volume 

 of the Herd Book was published in 1861. 



