EXERCISE 49. THE HAECKER STANDARD FOR DAIRY Cows 



(Reference, Productive Feeding, Chapter XXII) 



A 1200-pound cow producing 28 pounds of 4 per cent milk daily, receives 

 the following daily ration: 



20 pounds mixed clover and timothy hay, 34 pounds corn silage, 8 pounds 

 of a mixture of corn meal, oats, dried distillers' grains (equal parts by weight) 

 and one part each of linseed meal and gluten feed. How much total dry matter 

 and digestible matter does the ration supply, and how does it compare with 

 the Haecker Standard for dairy cows? 



Suggest a modification that may seem desirable and show how it will affect 

 the content of nutrients in the ration. 



88 



