FEED FOR THE COW 153 



TABLE VII— Contirued 



Dry Carbo- 



Matter Protein hydrates Fat 



Concentrates: Lbs. Lbs. Lbs. Lbs. 



Beet, mangel 9.1 1.1 5.4 0.1 



Rutabaga 11.4 1.0 8.1 0.2 



Miscellaneous : 



Cabbage 15.3 1.8 8.2 0.4 



Beet pulp 10.2 0.6 7.3 



Cows' milk 12.8 3.6 4.9 3.7 



Cows' milk, colostrum 25.4 17.6 2.7 3.6 



Skim-milk, gravity . : 9.6 3.1 4.7 0.8 



Skim-milk, centrifugal 9.4 3.9 5.2 0.3 



Buttermilk 9.9 3.9 4.0 1.3 



Whey 6.6 0.8 4.7 0.1 



EXERCISES 



1. Calculate a ration for a dairy cow giving 22 

 pounds milk daily, using corn, clover hay, and wheat 

 bran as feeds by the Wolff-Lehmann Standard. 



2. Suppose the cow weighs 1,000 pounds, calculate 

 the ration, using the Haecker standard. 



3. Make a ration from the same feeds by using the 

 two rules given above. 



4. Now compare all these rations. How do they 

 differ? Is this difference great or slight? 



5. "What rations do you feed on the home farm ? 



6. Can you calculate a better ration from the same 

 feeds? 



LABORATORY PROBLEMS 



XXIV. To Determine the Peb Cent of Fat in Cheese 



a. Weigh about 5 or 6 grams of cheese into an 18- 

 gram 30 per cent or 9-gram 50 per cent cream test 

 bottle. 



b. Add about 12 c.c. of boiling water. 



