330 



Diseases of the Genital Organs 



stood by studying Figures 10, page 17, and 11, page 18, 

 until the swelling becomes too great for copulation to occur, 

 the sheath mucosa is reflected, and when the penis is fully 

 protruded the tuberculous membrane itself, constituting the 

 covering of the penial base, enters the vulva of the cow dur- 

 ing coitus. 



Fig. 97 — Tuberculosis of the Glans and Prepuce. 



P, Prepuce ; F, fornix ; Tft, tubercular masses. 



Accordingly it is essential that great care be exercised in 

 making a diagnosis when inflammatory conditions of the 

 sheath exist, and that every available means be taken to 

 eliminate the question of tuberculous infection. However, 

 one must not carelessly incise the sheath deeply, for diag- 

 nostic or other reasons, lest the resultant cicatrix incarcer- 

 ate the penis. If tuberculosis is diagnosed, the bull should 

 be excluded from service, even to reacting cows, and 

 promptly sent to slaughter. 



(3) Preputial tuberculosis is apparently less common 



