184 ELEMENTARY TREATISE ON STOCK FEEDS AND FEEDING 



Addition of Concentrates. Let us try 3 Ibs. of cotton-seed meal, 

 3 Ibs. of corn meal and 2 Ibs. of wheat middlings and add these 

 to our roughage. The amounts for the concentrates are cal- 

 culated in a similar manner from Table IV as illustrated for 

 rye straw. 



Our ration meets the protein requirement but it is deficient 

 in therms of energy value. 



Balancing the Ration. In order to bring the energy value to 

 the requirement we must add some corn meal, as this feed stuff 

 contains a' relatively larger proportion of therms than the other 

 available concentrates. We must reduce the quantity of cot- 

 ton-seed meal because an addition of corn meal will make the 

 protein too high. We will try 6 Ibs. of corn meal and 2 Ibs. 

 of cotton-seed meal and compare the ration to the requirement. 



The ration is slightly deficient in digestible protein and energy 

 value. Let us add i Ib. of wheat middlings to the ration. 



