196 



CHEMISTRY OF FARM PRACTICE 



to feed 4 pounds of cottonseed meal, 6 pounds of wheat 

 bran, 10 pounds of alfalfa hay, and 40 pounds of silage; 

 the results based on the percentages given in table XVII 

 and calculated as in Example 1, are tabulated in table XIX. 



TABLE XIX. AN UNCORRECTED RATION 



An inspection of the results in Table XIX shows that the 

 protein content is more than is required, while the fat and 

 carbohydrates are about right in amount. It is desirable to 

 keep the total dry matter lower, if possible, than the Wolff- 

 Lehmann figure. The correction of this ration can be 

 accomplished by reducing the cottonseed meal and increasing 

 the bran or by reducing the alfalfa hay and substituting a 

 hay cheaper and less nutritious. In sections where cotton- 

 seed meal is cheap, its reduction will not be desirable; but, 

 in sections where it is expensive, 1| pounds of it may be 

 replaced with an equal weight of corn meal. Table XX 

 shows such a correction. 



