EXERCISE 56 (Continued) 



2. Compare the following two rations for dairy cows as to digestible 

 nutrients and feed cost, assuming that they have proved equally effective 

 for milk production, producing 32 pounds of 4.5 per cent milk: 



(a) Fifteen pounds alfalfa hay, 5 pounds corn stalks, 40 pounds mangels, 

 4 pounds corn meal, 3 pounds ground oats. 



(b) Fifteen pounds alfalfa hay, 20 pounds silags, 3 pounds hominy feed, 

 one pound each of linseed meal and dried distillers' grains. 



What was the average feed cost per 100 pounds of milk and per pound of 

 butter fat in either case at current feed prices? 



99 



