UDDER-STREPTOMYCOSIS 51 



The udder should be milked carefully twice a day, but 

 not more frequently, as the udder should rest. 



If the condition is obstinate and threatens to become 

 chronic one can cause the milk secretion to diminish by 

 inflation with air and thus inhibit the growth of the bacteria. 

 One can also combine the boric acid injection with air- 

 inflation. If this does not help there is nothing left but 

 to cause the udder to go dry. When it is possible, only 

 the diseased quarter is induced to enter the non-lactating 

 state. 



In cases of severe fever following gangrene one can 

 prepare an easy path into the gangrenous mass by cutting 

 off the teat,^ then induce healing and sclerosis by deep 

 point-firing or deep cautery into the quarter. 



In nodular necrosis the course can be shortened by oper- 

 ative removal of the nodules ( sequesters ) . 



STROMA-INFECTION 



This is somewhat infrequent and of less interest. 



The wound-infection is a complication of udder wounds. 

 It presents local necrosis with subsequent suppuration and 

 proceeds with or without fever. 



Secondary infection with staphylococci and colon bacilli 

 are common and gangrene may also be produced. 



Wound-infections are treated following the usual sur- 

 gical methods. 



Therefore one provides free drainage for the wound 

 secretion, which condition diminishes the nutrient fluid 



* This treatment is somewhat dangerous, however, if the dis- 

 eased cow be permitted to remain with the other cows, since after 

 the operation the quarter is continuously discharging infected 

 milk, which spreads the infectious organisms and may be a source 

 of infection to the healthy cows. Therefore the diseased animal 

 must be well isolated after the operation and her stall must fre- 

 quently be disinfected. 



