state Dairy Association. 



227 



pound more of carbohydrates. In four pounds of the gluten feed 

 we have .93 pounds of digestible protein, 2.03 pounds of digestible 

 carbohydrates and .11 pounds of fat. This amount of gluten feed 

 furnishes more nutrients than is needed, so let us try three pounds, 

 and we get the following: .70 pounds protein, 1.52 pounds carbo- 

 hydrates and .08 pounds of fat. This would do very well, but it 

 gives a little too much protein and costs a little more than four 

 pounds of bran, which has 3.5 pounds of dry matter, containing 

 .50 pounds digestible protein, 1.54 pounds of digestible carbohy- 

 drates and .12 pounds of fat. This gives the proper amount of 

 nutrients needed to balance the ration for a cow weighing 1,000 

 pounds and producing 25 pounds of 4 per cent milk. It gives the 

 following formula: 



If the animal produces more than 25 pounds of milk add omt 

 pound of the grain mixture for each three pounds increase in milk. 

 It is probably well to consider a ration made up of timothy hay 

 and corn stover for roughage in order that we may note the kind 

 of concentrates that will have to be selected to supply the proper 

 amount of nutrients to a cow producing the same amount of milk. 

 I will not go through the process of formulating this ration, but I 

 will give the formula, which is as follows : 



Corn stover, as a rule, is fed ad libitum, but I have shown the 

 amount of nutrients in 10 lbs. This makes a ration nearly as well 



