49^ MANUAL OF MODERN FARRIERY 



arian is in attendance on the animal, it will be to the 

 advantage of all concerned. 



INTERSTITIAL, OR PARENCHYMATOUS 

 MAMMITIS. 



When it originates as a primary affection, it 

 generally does so suddenly. It may be an animal 

 milked in the evening and all right ; next morning 

 no milk of consequence, and the udder tender, painful, 

 and swollen. She has no desire for food, is stiff and 

 unwilling to move, and disinclined to allow you to 

 manipulate the gland. 



The inflammation once set up proceeds rapidly, 

 and is prone to invade at least one-half of the udder, 

 and frequently it involves the whole of the organ. 

 Fever is a marked symptom, the thermometer 

 standing at io6 or more. The pulse is full, the 

 breathing disturbed, and the animal seldom ruminates. 



By early and appropriate treatment, the inflamma- 

 tion may subside, and resolution by absorption of the 

 exudate take place, but if so, the area of the inflam- 

 mation must be limited. If the inflammation spreads 

 rapidly, the udder in a day or two is enormously 

 enlarged and becomes as hard as a stone, and in this 

 indurated condition it may remain for an indefinite 

 period, the lacteal secretion having ceased. If the 

 animal lives, the hard masses of inflammatory exudates 

 may commence to break up, softening and suppura- 

 tion following each other. 



The purulent matter may discharge itself by the 

 teats, by sinuses through the body of the gland, and 

 in places it may be retained in cysts or abscesses, so 

 that we have circumscribed and diffused suppuration 

 as in the lung tissue in pleuro-pneumonia. 



