DISEASES OP GLANDS 285 



surrounded by dense connective tissue capsules. These break 

 and actinomyces pus is discharged, being a slimy, purulent 

 fluid. In those cases where the whole udder is actinomycotic 

 the udder, as a whole, becomes indurated, slowly enlarges, 

 ■showing nodules which eventually break and discharge the 

 pus. 



3. Botryomicotic mammitis : This chronic mammitis, in 

 which connective tissue hyperplasia with abscesses and iistu- 

 lous tracts is observed, is supposed to be due to the entrance 

 <of the botryomyces equi either through a cutaneous wound or 

 through the openings at the teat of the mare. At first the 

 symptoms of a parenchymatous mastitis involving one-half of 

 the udder are seen, presently little abscesses form, break and 

 give rise to fistulous tracts, the mouth of which granulates 

 freely ; these may heal and small, puckered-in nodular scars 

 form wherever the fistulous opening was. While this goes on, 

 the udder, as the result of the fibrous tissue proliferation, en- 

 larges and becomes hard ; the soft tissues of the thigh become 

 involved, in cases of long standing, and locomotion is 

 ■disturbed. Unless this condition is treated properly in time, 

 a cachetic state and death are sure to follow, which, of course, 

 may take years. 



Hutline the treatment of mammitis. 



Decrease the amount of feed and give a saline purgative. 

 In the acute stages, empty the udder often and gently, but do 

 ■not let the infected milk run upon the fioor, but catch it in a 

 vessel so it may be properly destroyed. Before and after each 

 milking the udder ought to be washed with an antiseptic 

 solution. The injection of antiseptic solutions into the milk 

 sinus does not always give good results ; the only safe ones 

 are a 4 per cent, boric acid solution or one containing 1 to 2 



