302 



ANNUAL REPORT OF THE 



Off. Doc. 



If the four pounds of corn are replaced by two pounds of gluten 

 feed and two ])Ounds of cottonseed meal, and if three pounds of Ajax 

 are used in the place of three pounds of the l)ran, the ration will be 

 considerably improved at only a slight difference in expense. 



ca 



t- 



bn a 

 a a» 

 ■-• ta 

 .Ho 



S a 



Two pounds gluten feed, 1.56 



Two pounds cottonseed meal, -- 1.62 



Three pounds Ajax 2.40 



One pound bran, - 0.57 



Total - - 6.15 



0.40 

 0.73 

 0.66 

 0.11 



$0,033 

 0.036 

 0.04G 

 0.012 



$0.0185 

 0.0337 

 0.0352 

 O.0O49 



1.89 $0,127 $0.0923 



It will be noticed that the total food value, i. c, the total digestible 

 material is somewhat increased from 5.52 pounds to 6.15 pounds, 

 and that there is not much difference in cost for each pound of di- 

 gestible food. The first ration furnishes 5.52 pounds of digestible 

 material for ten cents or 1.8 cents for each pound digestible. The 

 second ration contains 6.15 pounds digestible at a total cost of 12.7 

 cents or 2.1 cents for each pound of digestible food. The most 

 striking difference in the two rations is with reference to the amount 

 of protein they contain. Here the figures are 0.72 pounds for the 

 first ration as compared with 1.89 pounds in the second. In other 

 words the amount of digestible protein in the ration has been much 

 more than doubled, with only a slight increase in the cost of the 

 whole ration and of course a large decrease in the cost of each pound 

 of digestible protein. 



It is evident from the figures given that the present market prices 

 bear little or no relation to the amount of protein contained in the 

 feed and the obvious lesson is that in buying feeds for the dairy 

 cow those should be selected that furnish the largest amount of 

 X)rotein at a reasonable price. 



The fertilizer side of heavy protein feeding should not be ignored. 

 During the last few years the market price of nitrogen has risen 

 until now in mixed goods it costs not less than twenty-five cents* 

 a pound and probably in most cases it exceeds thirty cents. 



