49- SWINE IN AMERICA 



and burned. If the pen is old, knock it to pieces and 

 l)urn it. Disinfect pens and sleeping places, using air- 

 slaked lime on the floors and the carbolic acid solution 

 on the walls and ceilings. Whitewash everything. If 

 a hog dies, burn the carcass or bury it deeply out of 

 the reach of crows, buzzards, or dogs. If possible, do 

 not move the carcass from the place where it falls; but 

 if this cannot be done, the ground over which it is 

 dragged should be disinfected. Hog cholera bacilli can 

 live in the ground for at least three months. Care must 

 be taken to maintain an absolute quarantine between the 

 sick and well hogs. The same attendant should not 

 care for both lots unless he disinfects himself thoroughly 

 after each visit to the infected hogs. Dogs should be 

 confined until the disease is stamped out." 



Approved methods, particularly as relating to hog- 

 cholera, are treated further under Chapter XXIII, in the 

 section relating to cholera. 



DIPPING AND SPRAYING 



It is sometimes found more convenient to spray hogs 

 than to install a dipping vat for them, but spraying is 

 likely to leave untouched some portions of the animal, 

 particularly behind the ears and in wrinkles, and may not 

 always be effective. Immersion in a vat, however, is 

 thorough and preferable, particularly for lice or fleas. 

 Most of the prepared dips have some advantageous 

 qualities when swallowed, and dipping is said on that 

 account to be additionally effective for intestinal worms. 

 Dr. A. T. Peters of the Nebraska experiment station 



