STOMATITIS 87 



skin (muzzle) are significant. Vesicles do not- occur and the 

 feet are not involved. 



Prognosis. — The disease always ends in healing. 



Treatment. — The same as in catarrhal stomatitis. As the 

 disease is contagious, separation of the affected from the' 

 healthy is indicated. 



: Mycotic Stomatitis. — Definition. — This is a non-infective 

 . inflammation of the mouth, muzzle, skin of the region of the 

 coronets and sometimes of the udder and teats which occurs 

 in cattle on pasture. It is characterized by the formation 

 of minute vesicles and later ulcers which usually readily heal. 



Occurrence. — The disease is quite common in the United 

 States among cattle running at pasture, and most often 

 breaks out in the fall, especially when a rainy season follows 

 a period of drought. 



Etiology. — The cause of mycotic stomatitis is evidently 

 certain fungi which infest grasses. Clover pasture seems 

 to be the most dangerous in this regard. The disease is 

 often enzootic, affecting a number of animals subjected to 

 like condition in the community. 



Symptoms.— The initial symptoms are those of impaired 

 appetite, painful mastication and slobbering. In severe 

 outbreaks lameness may be the first symptom noticed by the 

 owner. On examination of the mucous membrane of the 

 mouth minute vesicles are noted. Later small ulcers appear, 

 particularly on the mucous surfaces of the lips, under the 

 tongue and on the dental pad. Sometimes gray-colored 

 fibrinous deposits are present. Erosions, scabs and crusts 

 form on the muzzle and external surface of the lips. 

 When the animal is lame the skin and subcutis of the 

 coronet become edematous, hot and tender. In some 

 instances the swelling is cracked and creviced and may 

 show evidence of secondary pus infection. When the udder 

 is involved scabs and fissures appear on the teats and skin 

 of the udder, causing cows to resist the operation of milking. 

 Milk secretion may be partially suspended. The general 

 condition of the animal is involved only in severe attacks. 

 They usually move about stiffly, frequently shaking their 

 feet, or when standing assume the attitude of a horse with 



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