486 



Bulletin 268. 



Table XXVII. Dry Matter in Mangels and Grain Compared when Silagb 



IS Fed as Succulent Food in One Period and 



Mangels in the Other Period 



Gain or loss in fat, as due to feeding mangels calculated as grain in pounds of 



dry matter 



219.4 pounds dry matter less in silage when mangels were fed in place of grain. 

 69 . 7 pounds more dry matter in silage when mangels were fed in place of grain. 



149.7 pounds less of dry matter in all cases considered when mangels were fed 

 in place of grain. 



food And perhaps the dry matter in mangels is more nearly equal 

 to the dry matter in grain than the ratio 1:1.23 would show. On ex- 

 amining Plates I and II we find that whenever ration III was fed, the 

 production of both milk and fat was maintained in a manner comparable 

 to that of the Check Group A each year. 



Cost of one pound of butter fat with ration III as compared with ration 

 II. Table XXVIII has been prepared from Tables VIII, XIV, XV, 

 and XVI. In the average of 15 cases during the period when ration 

 II was fed, the cost of one pound of butter fat was $0,268. During 

 the period when ration III was fed the cost of one pound of butter 

 fat was $0,208. The average cost of one pound of butter fat with 

 the check group for both years was $0,206. Therefor, while one 

 pound of dry matter in mangels may not be quite equal to one pound 



