THE THREE CS COWS, CORN AND CLOVER 117 



allowance for each cow. How long would each ration 

 last a cow ? What would be the daily cost ? 



10. Which is the cheaper ration under these con- 

 ditions? 



11. It must be remembered that in order to get 

 the best results a cow should be fed about 2 pounds 

 of protein daily. How much does she get with each 

 ration, if fed 20 pounds of feed per day? 



12. Disregarding the value of the carbohydrates, 

 what is the cost per pound of the protein in each 

 ration ? 



13. A lack of protein means a smaller quantity of 

 milk. Suppose cows fed on 20 pounds of the clover- 

 corn-oats ration gave 20 pounds of milk daily, while 

 those fed on the hay-straw-oats-bran ration gave but 

 15 pounds of milk daily. With milk at 80 cents per 

 cwt., what is the gain by using the first ration? 



14. Find the cost of each ration for a herd of 10 

 cows for one month. One day. 



15. Now determine whether the cheaper ration 

 is the more economical. 



1 6. Which is the better ration to feed under the 

 above conditions? 



17. Make rations with different kinds of feeds, 

 and figure the cost of the protein therein. 



1 8. When you have finished, compare results and 

 note that cows, corn and clover seem to go well to- 

 gether and give the best results. 



19. Pupils may bring data from home for similar 

 problems. 



