304 Animal Husbandry 
200-pound hog? Why is a board floor slightly raised above the ground 
objectionable for hogs? Name some of the advantages of cement as a 
flooring material in the hog-house. 
9. Give a system of marking pigs when young so that they can be 
identified later when it is desired to have them recorded in a herdbook. 
At what age are swine usually recorded? How does this compare with 
horses, cattle, and sheep ? 
10. Give advantages of coéperative swine breeding. In which classes 
of farm animals — horses, cattle, sheep, and swine—is codperative 
breeding likely to prove most satisfactory ? Explain the advantages and 
disadvantages of each. Why are not codperative societies more common 
in the open country ? 
11. How are lice removed from swine? Describe the use of the rub- 
bing post. 
12. Can the New England States compete with the corn-belt states in 
producing the pork consumed in New England? Explain. 
13. Can a man sell his own hogs in the stock yards? Is it to his ad- 
vantage to do so? Explain. 
14. How much shrinkage in a carload of hogs must a shipper make al- 
lowance for? Compare with beef cattle and sheep. 
