Iiiiiiiii/ Da.ry (battle 



of protein. Second, studies at AVisconsin have established 

 as for no other i)lant. the supremacy of the corn plant as 

 food for animals. In this test at AVi'sconsin it was demon- 

 strated that in rations using all parts of the corn i)lant ani- 

 mals can be completely nourished, will grow as they should 

 and reproduce in a healthy, normal way. The wheat plant 

 and the oat plant could not do this and lines of animals fed 

 on rations made up from feeds whose only source was the 

 wheat plant or the oat plant failed to survive. ( )n a mixture 

 of foods from the three plants the factor which made for 

 normal growth was the corn, and growth and reproduction 

 went on only in proportion to the amount of corn foods in 

 the ration. 



Therefore corn is the king source of dairy cattle feeds. 

 AA' e get from corn these foods : 



ROUGHAGE 



Corn silage 

 Corn fodder 

 Corn stover 



CONCENTRATES 



Corn meal 



Hominy 



Corn feed meal 



Gluten feed 



Gluten meal 



Corn bran 



Corn oil meal 



Distillers' dried grains 



We will take up first a brief study of the roughage feeds 

 derived from corn. Many times has the value of corn silage 

 been praised. Very little can be added. However, it is 

 worth while again to make some comparisons. Its value as 

 a source of succulence has been discussed. It is not a feed 

 that furnishes protein cheaply. Therefore the value of corn 

 silage lies in the amount of total digestible nutrients in it of 

 the nature of carbohydrates to furnish large amounts of 

 energy and to make the rest of the ration succulent and 

 palatable. 



In one ton of silage there are 354 pounds of total diges- 

 tible nutrients. Eight dollars a ton is a reasonable jjrice to 

 pay for a ton' of heavil}^ eared silage. At this price per ton, 

 one hundred pounds of total digestible nutrients cost $2.26 

 per hundred pounds. This compares favorably with the cost 

 per hundred pounds of total digestible nutrients in concen- 

 trates at average prices. Eight dollars per ton for corn silage 

 is high. Now generally speaking a pound of total digestil^le 



Pflf/e OiK' Hunilri'il Nine 



