978 Veterinary Obstetrics 



keratitis, in which there is either a local or a diffuse cloudiness 

 and ulceration of the cornea, with increased vascularity and 

 hemorrhages. In some cases staphyloma, followed by rupture of 

 the cornea and hernia of the iris, has occurred. The disease of 

 the eyes continues for a prolonged period, and generally ends in 

 recovery in from six to eight weeks, though white or pigmented 

 spots sometimes remain upon the cornea. These changes in the 

 cornea are accompanied by conjunctivitis. 



As a general rule the animals recover, and finally their power 

 of milk production becomes restored. The cause of the disease 

 has not been determined, and attempts to transmit it from one 

 animal to another have failed. Isolation and disinfection are 

 apparently indicated. 



II. Mammitis in Swine. 



Inflammation of the mammae in swine is an exceedingly rare 

 disease. It may involve one or several of the glands, and present 

 the ordinary symptoms of mastitis, with swelling, pain and a 

 general depression of the system. The inflammation may end in 

 resolution, induration or gangrene, and in the latter case may 

 result in the death of the animal. The sow is so immune to 

 ordinary wound infection that it is only under very great provo- 

 cation that the glands become inflamed. The handling is accord- 

 ing to the general rules already related for mastitis in the cow. 



12. Mammitis in the Bitch. 



According to Vennerholm, mammitis is very common in the 

 bitch, when her puppies have been prematurely taken away. 

 As in the sow, so in the bitch, there is a high degree of immunity 

 against invasion by the ordinary organisms of wound infection, 

 except under peculiarly favorable conditions. In the bitch, as 

 in other multiparous animals, inflammation of those glands which 

 are not used is not usually observed. Ordinarily the number of 

 glands exceeds that of the young, each of which has its own teat, 

 from which it obtains its milk supply. Any extra glands which 

 the mother may have are allowed to atrophy, and cease to func- 

 tion from the first, without apparently causing any marked de- 

 gree of discomfort or danger ; but, after a gland has been fully 

 aroused to its function because of its use by the new-born animal, 

 if the young is removed before the normal decline in lactation, 

 mastitis is probable. 



