76 STOCK AND FEED PEOBLEMS 



EXAMPLE. How much cottonseed meal must be fed a cow that 

 she may get 2 Ib. of protein ? 



SOLUTION. 2 Ib. of protein is the amount required. 

 40% of the cottonseed meal is protein. 

 2 Ib. equals 40% of the required amount of cottonseed 



meal. 

 2 Ib. -=- .40 = 5 Ib., the required amount. 



88. Rule. To determine how much feed is required to obtain 

 a given amount of a food element -, divide the required amount 

 of the food element by its per cent in the analysis expressed 

 as a decimal. 



EXERCISE 



Study the above table and answer the following questions : 



1. If timothy and redtop hay are selling for the same 

 price per 100 Ib., which is the cheaper feed for a horse ? 



2. When timothy, redtop, and clover hay are selling at 

 the same price per ton, which is the cheapest cow feed ? 



3. How much wheat bran must a cow be fed that she 

 may get 2 Ib. of protein ? 



4. If a cow is fed daily 10 Ib. of bran, how much clover 

 hay must be fed that the cow may have at least 2 Ib. of 

 protein ? 



5. How many pounds of oats must be fed a horse that he 

 may have 2 Ib. of protein ? 



6. How many ears of corn (100 ears, or 56 Ib., to the bushel) 

 must be fed a horse that he may have 2 Ib. of protein ? 



7. Which is the cheaper feed for a work horse during 

 summer, oats (32 Ib. per bu.) at 250 per bu. or corn at 

 400 per bu., disregarding the carbohydrates ? (Use data in 

 problems 5 and 6.) 



8. What is the cost per pound of protein in cowpea hay 

 at $10 per ton ? in clover hay at $10 per ton ? 



