CONTAGIOUS DISEASES OF SWINE. 489 



moved, an uneven raw surface. In some cases they are so numer- 

 ous between the legs and behind the ears as to produce a slough- 

 ing of the whole skin. Eed or purple spots and pa'tches are found 

 in the skin, on the under ^surface of the body, behind the ears, 

 and between the legs. The blood becomes altered and reduced in 

 quantity, is of a dark color, and coagulates very readily when ex- 

 posed to air. The blood examined microscopically will be seen to 

 contain large num'bers of the hacilli suis. 



Measures to Akkest the Disease. — To effectually stamp out 

 the disease, congressional legislation is necessar}-. One farmer 

 may successfully eradicate it from his own herds, but so long as 

 his neighbor's continue to harbor it, his stock is daily subjected 

 to the danger of renewed infection. His personal sacrifice is all 

 in vain so long as his neighbors' hogs are dying. Animals are 

 only safe from infection at a distance of one mile, and a strong 

 wind will carry the disease from farm to farm. When hog 

 cholera breaks out in a community the hogs are too often shipped 

 to market, thus disseminating the disease. 



Every sick hog should be destroyed, immediately buried or 

 burnt, and the premises should be disinfected. If this be done 

 the disease may be stamped out in a short time. If this cannot 

 be done, the diseased herd should be isolated and their pens dis- 

 infected. The healthy animals on the same farm should be kept 

 in movable pens on high and dry ground. The pens should be 

 moved each day to a new spot. These pens could be made with a 

 few planks. The troughs should be kept clean and the water 

 pure. The healthy animals should not be waited on by those 

 that attend the diseased animals. 



Therapeutically, but little can be done to prevent an outbreak. 

 Carbolic acid may be used to disinfect the premises, and it may 

 be given internally in the drinking water, every morning and 

 evening, in doses of from ten to twenty drops. Chloride of lime 

 is also a good disinfectant for use in the pen. A solution of car- 

 bolic acid and water may be sprinkled over the hogs once a day. 



