CALCULATING RATIONS FOR LIVE-STOCK 321 



United States Department of Agriculture, especially from Farmers' 

 Bulletin No. 22. You may expect the figures in different books show- 

 ing the composition of foods to vary slightly. 



Problem i. How many pounds of corn will be required to supply 

 enough carbohydrates for a fattening pig, weighing 200 pounds ? 



Problem 2. How much soy-bean seed should be added to the amount 

 of corn just found to supply the deficiency in nitrogen. 



Problem 3. Calculate a ration of corn and cowpea seed for this pig. 



Problem 4. Calculate a ration for a horse at heavy work, using cow- 

 pea hay and corn. 



Problem 5. What would the ration in Problem 4 cost at local prices ? 



Problem 6. Find in the table on page 322 all the kinds of hay that 

 could be substituted for cowpea hay, that is, all those having a nutritive 

 ratio between 3 and 6. 



Problem 7. Calculate the composition of the following Southern ra- 

 tion and compare it with standard for a cow giving milk : 6 pounds 

 cotton seed, 5 pounds corn meal, 15 pounds cowpea hay. 



Problem 8. Calculate the composition and compare with the stan- 

 dard a ration of 6 pounds cotton seed, 7 pounds wheat bran, 15 pounds 

 mixed grass hay. 



STANDARD DAILY RATIONS NEEDED BY DIFFERENT ANIMALS 

 (FOR REFERENCE) 



