130 



AMERICAN DAIRYING. 



TABLE V. 



This table seems conclusive so far as these pigs were con- 

 cerned, and we are obliged to say that on grain alone there 

 was a loss of more than one cent for every pound of growth. 



These results show us that we cannot blindly follow the 

 teachings of feeding tables, for should we so do one of these 

 rations would be as good as the other, but as a matter of fact, 

 while chemically the skim-milk ration was not quite as rich 

 in nutritive material as the grain ration, yet the former was, 

 on an average, 30 per cent more efficient in actual results 

 than the latter. 



"Table IV" is a highly interesting and valu- 

 able one. Prof. Whitcher in the work here 

 tabulated charges the corn-meal at cost and 

 gives the skim-milk credit for the balance of 

 the gain. This seems fair, as he shows in 

 "Table V" that when corn-meal and middlings 

 were fed the cost of producing was one cent per 

 pound more than the increase made by the 

 skim-milk was credited with. 



In "Part II" of this bulletin F. W. Morse 

 makes an interesting and instructive report 

 of his work to determine the digestibility of 

 rations. I wish again to call attention to the 

 time this experiment covered 19 weeks. This 



