THE VALUATION OF FEEDINGSTUFFS 



331 



$35.00 per ton. Calculating the digestible protein and total 

 nutriment in 100 pounds of each feed, and the cost of 100 

 pounds of feed, we get the following : 



Thus the cottonseed meal at these prices furnishes more 

 protein and more total nutriment per dollar invested than 

 linseed meal. 



Although this method of comparison will give good re- 

 sults for many comparisons of the concentrates which are 

 similar to each other, yet when one compares dissimilar 

 concentrates, complications often arise. For example, 

 assuming that tankage cost $50.00 per ton and middhngs 

 $30.00 per ton, we have the following comparison : 



100 lb. tankage 

 100 lb. middling 



Digestible 

 Protein 



Lh. 



50.1 

 16.9 



Total 

 Nutriment 



Lh. 

 76.2 



79.7 



Cost 



$2.50 

 $1.50 



