THE SILO, 



421 



To test this point, Prof. C. G. Williams of Ohio divided his herd 

 into two groups, feeding to one group silage composed of corn, cow peas 

 and soy beans, mixed hay and four pounds of grain, and to the other 

 group corn stover, mixed hay and 13.5 pounds of grain per day. The 

 actual amount of digestible food was as nearly the same in each as could 

 be wished. The two sections were fed this for an entire winter. Each 

 cow was charged with what she consumed and credited with what she 

 gave. At the end of the four months the following results were found: 

 "The cows fed on the silage ration produced 96.7 pounds of milk and 

 5.08 pounds of butter fat per 100 pounds of dry matter. The cows fed 

 the grain ration produced 81.3 pounds of milk and 3.9 pounds of butter 

 fat per 100 pounds of dry matter. The cost of feed per 100 pounds' of 



Figure 16. Filling 2G0-ton stave silo at World's Fair, St. Louis, Mo. This silo Is 

 40 feet high and was filled with blower elevator. Mr. C. T. Graves, Maitland, Mo., 

 Superintendent Jersey Cattle, stands near the silo. 



(Courtesy Silver Mfg. Co.) 



milk was $0,687 with the silage ration, and $1,055 with the grain ration. 

 The cost of feed per pound of butter fat was 13. i cents with the silage 

 ration and 22.1 cents with the grain ration. The average net profit per 



