332 



BULLETIN No. 111. 



ACREAGE CONSUMED PER Cow 



*Tlie grain produced in addition is not here considered. 



The above total acreages, however, are not a criterion of the rel- 

 ative efficiency of the three rations, because the areas which pro- 

 duced the oat straw and corn stover fed yielded also a certain 

 amount of grain. In order to express the acreages of oat straw 

 in terms comparable with the acreages of other crops used, we may 

 reduce the straw and oats to their money values, determine the per- 

 centage which the value of the straw constitutes, based on the total 

 value of both straw and oats, and regard this percentage as the 

 proportion of the acreage of oats which is represented by the straw 

 grown thereon. 



Thus assuming a yield of fifty bushels per acre of oats, at 32 

 cents per bushel, the value of oats per acre is $16.00; value of one 

 ton straw, $1.50 (page 327). The straw, then, makes up 8.908 per 

 cent of the value of the crop, and that percentage of the acreages of 

 stra\v indicated in the above table may be considered as representing 

 the amount of land actually chargeable to the straw which the cows 

 consumed. 



Similarly, our records show that the corn crop yielded 57.86 

 bushels of grain and two tons stover per acre. Calculating the corn 

 at 35c per bushel and the stover at $2.25 per ton, we find the value 

 of corn to be $20.25 and stover $4.50 per acre, from which we de- 

 termine that 1 8.18 percent of the value of the crop consists of 

 stover. Computing the percentages of straw and stover thus deter- 



