238 



PRODUCTIVE FEEDING OF FARM ANIMALS 



feed their cows to the limit of economical production, and do not try 

 to ascertain whether their cows are capable of making an increased 

 production (Fig. 49). Until this is done, dairy farming, which 

 is one of the most profitable branches of agriculture and animal 

 husbandry, will not yield adequate returns for the labor it requires. 



F 



Fia. 48. Babcock test apparatus. ("Productive Farming," Davis.) 



Amount of Feed Eaten Annually by Dairy Cows. The table 

 given below shows the amount of different feeds eaten during the 

 year, by cows in the dairy herds of nine experiment stations, with 

 production of milk and butter fat as well as feed cost, according 

 to Henry. 13 The estimated feed units have been added by the 



Annual Feed Requirements of the Dairy Cow as Found by Nine Stations * 



* Connecticut Bulletin 29; New Jersey Reports, 1897-1904; Michigan Bulletin 166; 

 Wisconsin Reports, 1905-7; Minnesota Bulletin 35; Missouri Bulletin 26; Utah Bulletin 68; 

 Montana Report, 1P05; Nebraska Bulletin 101. 



13 " Feeds and Feeding," 10th ed., p. 427, 



