84 DISEASES OF SWINE 



Treatment. — The preventive treatment consists in 

 avoiding, as much as possible, such conditions as may 

 irritate the skin. Filthy surroundings should be 

 avoided, and the hogs kept in a thrifty condition. 



When the hogs are kept in muddy yards, they 



FIG. 9 — WART FROM THROAT OF HOG 



should be occasionally washed, or dipped, in a one per 

 cent, water solution of a tar disinfectant. Keeping 

 the hogs clean is a very necessary part of their care, 

 and a dipping-tank should be a part of the equipment 

 in the hog yards. 



SKIN WARTS 



Warts are growths on the skin caused by piled up 

 epidermal cells, or hypertrophy of the papillse of the 



