80 PRACTICE OF EQUINE MEDICINE. 



Then paralysis of the hind extremities is shown, and death is 

 often jDieceded by symptoms of pneumonia. The lymphatic vessels 

 and the inguinal ganglia are involved at times. 



What are the conditions found on post mortem ? 



These are not pathognomonic; the body is emaciated, and 

 where the tissues are cut through an anaemic condition is presented. 



In some cases swelling, thickening, and exudation into the 

 neurilemma, in posterior extremity, while in between the muscles a 

 gelatinous material may be seen. 



A congestion of the brain and spinal cord may be found, and 

 some of the nerves show signs of degeneration. An oedematous 

 condition of the vulva and neighboring parts may be present in 

 the mare, while the penis, sheath, and scrotum in the stallion show 

 like conditions. 



Give the prognosis. 



It is doubtful and grave. The course is irregular and chronic, 

 lasting six or eight months to two or three years. 



In the stallion it is more serious on account of liability of 

 spreading the disease more rapidly. Seventy per cent. die. 



Outline the treatment. 



Tlie indications for treatment point mostly to the parts affected; 

 injections of astringent and disinfectant lotions — silver nitrate, 

 1-100; potassium permanganate, 1-100; bichloride of mercur)^ 

 1-10,000; zinc sulphate, 1 grain to the ounce; other drugs used 

 are tannic acid (| dram to 8 ounces), zinc chloride (1 grain to 4 or 

 8 ounces rose waterj. Stimulating liniment over loins may be 

 indicated. Castration has been recommended, but seems severe; 

 destruction of the stallions has been ordered in some countries of 

 Europe. 



Internally, potassium iodide. Fowler's solution of arsenic, bel- 

 ladonna, strychnine. 



These animals should be isolated. 



ACTINOMYCOSIS. 



What are the synonyms ? 



Big Jaw; lumpy Jaw; commonly called by some " wolf in the 

 Jaw "; wooden tongue. 



