ii6 ELEMENTARY AGRICULTURE 



Free Bulletins, U. S. Dept. of Agriculture. 



No. 81. Corn Culture in the South. 



No. 199. Corn Growing. 



No. 106. Breeds of Dairy Cattle. 



No. 143. Conformation of Beef and Dairy Cattle. 



Problems. 



1. A ration for cows consists of one ton of clover 

 hay with 10 bushels each of ground corn and oats. 

 How long will this feed a cow, feeding two pounds of 

 protein daily? 



2. What is the total and daily cost of this ration 

 with hay at $7, corn at 40 cents and oats at 30 cents ? 



3. What will it cost to keep a herd of 12 cows for 

 200 days on this ration? 



4. On another farm, timothy hay, oat straw, bran 

 and oats are mixed in the following proportions': One 

 ton each of hay and straw, 20 bushels of oats and 1,000 

 pounds of bran. Is this a balanced ration ? 



5. How long will this ration keep a cow? A herd 

 of 15 cows? 



6. With hay worth $7, oats 30 cents, straw $4 

 and bran 80 cents per cwt., what is the total cost of 

 this ration ? The cost per cow, per day ? 



7. What is the cost of feeding a herd of 12 cows 

 for 200 days on this ration? 



8. Compare the rations in problems i and 4. 

 Which costs the more? Which is the nearer to a bal- 

 anced ration ? Which is likely to produce the better 

 results in feeding? 



9. Suppose 20 pounds of each ration to be the daily 



