DAIRY INSPECTION 159 



If tuberculosis of the uterus is suspected, the sub- 

 sacral, sublumbar and internal inguinal lymph-glands 

 should be palpated per rectum. These glands are en- 

 larged, firm, and often nodular when the uterus is tuber- 

 culous. The mesenteric lymph-glands can also be 

 examined in the same manner. 



Further information regarding internal conditions 

 can be obtained by examining the sclerotic conjunctiva 

 and the mucous membrane of the cheeks. These mem- 

 branes are pale in tuberculosis and in other chronic debili- 

 tating conditions which lead to anaemia and hydrsemia; 

 bluish-red (cyanotic) in febrile, respiratory, and cardiac 

 diseases and in conditions which interfere with the en- 

 trance of air into the lungs ; brick-red to dark red, with 

 the blood-vessels injected, in hypersemia and inflamma- 

 tion of the brain and in conditions which interfere with the 

 return of venous blood from the head to the heart (pul- 

 monary emphysema, organic heart disease and cardiac 

 weakness) ; ecchymotic in anthrax, severe anaemia and 

 pernicious anaemia, and yellow in icterus. 



When symptoms suspicious of tuberculosis are 

 present and no definite conclusion can be reached, the 

 cow should be tested with tuberculin. 



When catarrhal mastitis is suspected and a definite 

 diagnosis cannot be made, the milk should be examined 

 by the catalase, leucocyte, or alcohol tests and micro- 

 scopically, for streptococci. 



Ill STABLE PRACTICES 



Attention should be given to the manner in which the 

 stable is cleaned, when and how the cows are cleaned, the 

 methods of milking and of caring for the milk, the time 

 of feeding, character of the feed, and when the litter is 

 put down and the material used. 



