570 SWINE IN AMERICA 



account of the great itchiness on the part the animal rubs 

 it, causing the part to become a rough sore. It is con- 

 tagious from one pig to another; it generally appears 

 first on the thin parts of the skin under the arm, behind 

 the ear, inside of the thighs and upon the back. In the 

 early stage it resembles eczema, but if the eyesight is 

 good and assisted by the bright sunliglit, the parasites 

 may be seen as a moving white speck ; they can be 

 readily seen by using a small magnifying glass. 



Doctor Mcintosh says : "This disease is transmitted 

 by contagion; that is, the parasites themselves or their 

 eggs must get on the skin in order to produce the dis- 

 ease. All unaffected pigs should be removed from the 

 premises where the diseased ones are or have been, and 

 the woodwork of the sties washed with a strong solution 

 of carbolic acid. Wash the pigs all over with soft soap 

 and water, then rub in well dry sulphur. When the sul- 

 phur comes in contact with secretions from the sores, it 

 forms a compound poisonous to the parasites. In a day 

 or two give the animal another washing, and rub on some 

 more sulphur. A very sure remedy is to boil for one hour 

 two ounces of stavesacre seeds in i^^ quarts of water, 

 and keep it nearly boiling for an hour longer ; make up 

 the water to the quantity originally used. Such a so- 

 lution, rubbed into the skin, not only kills the parasite, 

 but its eggs also. Repeat in a week if necessary. An- 

 other is to steep one part of tobacco in 20 parts of boil- 

 ing water for a few hours, and, after washing the pig, 

 apply a little of this to the affected parts with a sponge. 

 If the surface to be covered is large, only apply it to 

 one part today and to the other tomorrow. For instance, 



