ILLINOIS DAIRYMEN'S ASSOCIATION. 



321 



we try adding six pounds of bran and the ration is then as fol- 

 lows : 



Ration B. 



Digestible Nutrients. 

 Carbohy- 



Protein, drates, Fat, 



Lb. lb. lb. lb. 



Clover hay 15 1.02 5.37 .25 



Corn and cob meal 8 .35 4.80 .23 



Bran 6 .73 2.35 .16 



Total nutrients in ration . . 2.10 12.52 .64 



Nutrients required for a 1,000-lb. cow giv- 

 ing 30 lb. 4% milk 2.10 13.48 .58 



The amount of protein, carbohydrates, and fat now corre- 

 sponds closely enough with the nutrients required, for all prac- 

 tical purposes. 



If one wishes to feed clover hay, corn silage, corn meal, and 

 ground oats, he can make up a trial ration by taking 8 pounds of 

 clover hay, 40 pounds of silage, 4 pounds of corn meal, and 4 

 pounds of ground oats. The nutritive value of each of these feeds 

 can then be determined from the amount of digestible nutrients 

 in 100 pounds given in the table on page 15. Taking the digest- 

 ible nutrients in the given amounts of each of these substances 

 we have the following trial ration : 



Ration C. (Trial Ration.) 



Digestible Nutrients. 

 Carbohy- 



Protein, drates, Fat, 



Lb. lb. lb. lb. 



Clover hay 8 .54 2.86 .14 



Corn silage 40 .36 4.52 .28 



Corn meal 4 .31 2.67 .17 



Ground oats 4 .37 1.89 .17 



Total nutrients in ration 1.58 11.94 .76 



Nutrients required for a 1,000-lb. cow giv- 

 ing 30 lb. 4% milk 2.10 13.48 .58 



By comparing the total nutrients in this ration with the re- 

 quired nutrients for a cow producing 30 pounds of 4 per cent 



