state Dairy Association. 87 



cows THAT KICK. 



With cows that are in the habit of kicking during the time of 

 milking the habit has been frequently broken by the use of the 

 milking machine. As a rule, the kicking cow gives less trouble 

 when milked by machinery than when milked by hand. 



THE BUSINESS END OF TUBERCULOSIS AMONG CATTLE. 



(D. F. Luckey, State Veterinarian.) 



In order to confine ourselves to the discussion of the subject 

 assigned to me today, it will be necessary to avoid any extended 

 reference to the disease of tuberculosis or the tuberculin test. For 

 those who desire further information on thes subjects there is 

 plenty of literature in print ready for free distribution. On page 

 354 of the 38th annual report of the State Board of Agriculture 

 will be found a brief discussion of the subject of tuberculosis, in- 

 cluding an explanation of the tuberculin test. The August, 1905, 

 bulletin of the Missouri State Board of Agriculture contains a de- 

 tailed explanation of the tuberculin test. Besides these publica- 

 tions there are any number accessable to anyone who desires in- 

 formation on these subjects. 



To illustrate briefly the proposition that the dairymen of this 

 State have to deal with, I will call your attention to the experiences 

 with different herds which have been affected with tuberculosis. 

 The college herd of Cornell University, New York state, was for 

 sixteen years kept free from tuberculosis by the use of the tuber- 

 culin test on every animal added to it. In the course of time the 

 herdsman concluded that the precaution of testing each animal 

 added to the herd was unnecessary, and neglected to use it on four 

 animals which were added. These animals, it is true, were ac- 

 companied by a health certificate alleged to have been made by 

 some unofficial veterinarian. It is more than probable that the 

 examination consisted in looking over the animals about as the 

 ordinary dairyman would do in considering his purchase. At least 

 some few months after these four head were added to the herd, 

 one of them was found to be diseased in some way. The tuberculin 

 test applied to these four cows revealed the fact that they were 

 all diseased with tuberculosis, and on testing the whole herd it 

 was found that four more of the healthy cows of the herd had be- 



