io8 ELEMENTARY AGRICULTURE 



POUNDS PER BUSHEL. 



Kind of Feed. Protein. 



Dry peas io 



Rye 5 



Barley 4 



Corn 354 



Oats 3 



Table XII. 



Table showing approximate amounts of protein and carbo- 

 hydrates required daily by farm animals of average size: 



Animal. Protein. Carbohydrates. 



Dairy cow 2 Ibs. 12 Ibs. 



Work horse 2 Ibs. 12 Ibs. 



Calves under i year i lb. 6 Ibs. 



Pigs, growing ^ lb. 2^ Ibs. 



Lambs, growing 1-5 lb. i lb. 



NOTE : This amount varies with the size and age of the animal. 

 Fattening stock can be profitably fed a greater allowance of 

 carbohydrates in the form of grain, like corn and barley. 



Problems. 



1. How many pounds of protein in a bushel of oats? 

 With oats at 30 cents per bushel, what does this pro- 

 tein cost per pound, disregarding the carbohydrates ? 



2. How many pounds protein in a bushel of barley? 

 With barley at 44 cents per bushel, what does protein 

 in this form cost per pound? 



3. Which is the cheaper feed at these prices? How 

 much? 



4. What is the cost per pound of protein in rye at 

 60 cents per bushel? 



5. What is the cost per pound of protein in corn at 

 35 cents per bushel? 



