TH6 JOURNAL; 



OF 



^fie department of Agriculture. 



Vol. VI. Part 9. 10th Sept., 1908. 



DISEASES OF THE SKIN. "^^ ' 



BOTaNu 



uarqen. 



{Continued from -page jo6.) 

 S. S. Cameron, M.R.C.V.S., Chief Veterinary Officer. 



II. PARASITIC SKIN DISEASES. 



I. — Animal Parasites {continued). 



Act|e. 



Acne (Gr. Akis = a point) is a disease affecting the sebaceous follicles 

 and caused bv the presence in the follicle of a minute animal parasite — 

 {Demode X folliculorum) — from i-5oth to i -500th of an inch in breadth. 

 The disease affects dogs and pigs principally, and is identical with the 

 affection of the slTin of the nose and face of man called " blackheads " or 

 comedones. The pig is usually affected on those parts of the skin which 

 come in contact with the filth of the stve — the claws, legs and snout — but in 

 severe cases the whole surface of the body may be affected. The affected 

 skin is covered with pimples which appear to contain pus, but an examina- 

 tion, the vellow greasy and foul smelling content is found to be simply 

 sebaceous matter which has been formed in excess on account of the irrita- 

 tion of the parasite and has caused great distension of the follicle giving 

 it a pustular appearance (see illustration on the following page). 



Treatment. — The affected parts should be washed with a solution of 

 soda and then a mixture of creosote i part, liquor potassse 4 parts, and 

 olive oil 16 parts, should be applied with smart friction. This treatment 

 should be repeated at inter\'a]s of a week. 



10206. R 



