LIV. 

 ENZOOTIC AND EPIZOOTIC DISEASES OF DOGS. 



DISEASES OF THE SKIN— MANGE. 



Dog mange is due to an insect, the sarcoptes canis. The disease 

 is transferable to man. I have seen cases of a niangy dog almost 

 covered with eruptions. 



Symptoms. — There is an itching, with fonnation of red points 

 like flea bites, vesicles, pustules, and scabs. The red points may 

 be plainly seen on the inside of the thighs and under the abdo- 

 men. 



Follicular scabies is a frequent form of mange, due to the 

 presence of the ascarus demodox folliculorium. 



The symptoms of the disease are the formation of small pimples 

 and circumscribed spots, from which the hair falls out; scabs form 

 from the discharge of the contents of the pustules, with cracking 

 and bleeding of the surface. A positive diagnosis of the parasite 

 can only be made by the aid of the microscope. The disease is not 

 so contagious as scabies. Its duration may be a year, and even 

 longer. 



Treatment. — Creosote, four drachms; olive oil, seven ounces; 

 sol. potassium, one ounce. The affected parts should be dressed 

 with this about twice a week. Where the whole body is affected 

 the animal should be clipped. Before making the application, 

 wash the dog thoroughly with soft soap. 



ECZEMA RUBRUM. 



This is an eczematous affection occurring among sporting dogs. 

 It is caused by im})roper diet and liy lunning through long grass 

 when it is wet. 



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