RETURNS FROM ANIMALS 



vary somewhat with the size of the animals, 

 but will depend much more largely upon 

 the amount of milk and butter fat given. 

 While maintaining substantially the general 

 average just given for the whole herd, it is 

 the practice of careful feeders to vary the 

 amount of concentrates fed to each individ- 

 ual in accordance with the amount of butter 

 fat or milk given. 



COST OF MAINTAINING WORK HORSES 



At the Minnesota station, the total cost of 

 feeding and maintaining a farm work horse 

 for one year was estimated to be from $75 

 to $90, of which about $20 was charged for 

 interest and depreciation. On the basis of 

 3.3 hours as the length of the working day, 

 the cost per horse per hour was estimated to 

 be 7^ cents. At the Ohio state university, it 

 was found that four horses weighing about 

 1,400 pounds were chosen to perform 2,185 

 hours of labor during one year, while under 

 like conditions four horses, weighing about 

 200 pounds less, worked on an average but 

 1,641 hours each. For each secular day, 



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