ELEVENTH ANNUAL YEAR BOOK— PART X 



509 



reacting and suspicious animals were not slaughtered but placed 

 in quarantine, and again other animals were purchased to replenish 

 tin' herd. A third test was made in January, 1910, when there 

 was found to be twenty-two reactors, and four suspects out of the 

 herd of fifty-four head, this number including animals placed in 

 quarantine after test of June, 1909. Seventeen of these animals 

 were slaughtered with the result as shown on the accompanying 

 post mortem record, the balance remaining in quarantine, these 

 being animals that reacted in 1909. Out of the seventeen that were 

 slaughtered there were two, that on post mortem showed no pro- 

 nounced lesions, one of these was classed as a suspect at examina- 

 tion. When a fourth test was made of this herd, these quarantined 

 reactors were included but all of them did not show a reaction, 

 so it was decided to send one of them to slaughter with other re- 

 acting animals, as a check, and on post mortem same was found to 

 be badly infected. It was then decided to slaughter the remainder 

 that had been in quarantine since the test in June, 1909, with the 

 result that all showed pronounced lesions; the accompanying cut 

 being taken from one of the animals that had failed to respond to 

 the final test. This would tend to show that an animal showing 

 a typical reaction to the tuberculin test should be considered as 

 diseased and does not require subsequent testing. 



With proper care and precautions, it is thought that the disease 

 will eventually be eradicated from this herd. 



FINAL POST-MORTEM EXAMINATIONS. 

 ORPHANS' HOME, DAVENPORT, FEBRUARY 2, 1909. 



♦Generalized tuberculosis. 

 t Normal. 



