12 



BULLETIN 104:2, U. S. DEPAETMEXT OF AGEICULTUEE, 



cheapest per day, and esx)ecially ^vhich produces a pound of gain 

 most cheaply. For this purpose it is necessary to fix the prices for 

 feeds on the farm. It is felt, however, that this is the most ques- 

 tionable and unsatisfactory part of such experimental work, es- 

 pecially for the last few years, during which unusual fluctuations 

 have occurred in feed prices. On account of these fluctuations and 





/S^ 



Fig. 7. — Annual results of winter and summer (grass) feeding for Lot 2. These calves 

 were fed the following ration during the winter period: Corn silage, 12.3 pounds; 

 clover hay, 4.9 pounds. 



also for simplicity in making the various calculations an average 

 of the feed prices for the three years is used, as follows : 



Com silage per ton__ $6. 00 



Rye hay do IS. 00 



Cotttonseed meal do 50. 00 



Clover hay __do 17. 00 



Mixed hay do 18. 00 



Com lier bushel— 0. 96 



Wheat bran per ton__ 40.00 



Oil meal do 56. 00 



Mixed grain do 39. 76 



Pasture per day__ 0.03 



