ELEVENTH ANNUAL YEAR BOOK— PART X 



515 



Again in May, 1910, the herd was tested, showing four reactors 

 and one suspect. The four reactors were slaughtered, wih result 

 as shown. 



FINAL POST-MORTEM EXAMINATIONS. 

 MT. PLEASANT HERD, MAY 20, 1910. 



'Generalized. 



It will thus he seen that the situation at this institution is or has 

 heen serious, and that the tuberculin test has been shown at the 

 inspection to be absolutely reliable as a means of detecting the 

 presence of infection. 



Conditions at the institution were not sanitary or favorable at 

 the time of the 1908 examination. Stables and stalls were not in 

 desirable condition. It is believed that these conditions tended to 

 aggravate the disease and extent of infection. Since that time the 

 stalls and stable conditions generally, have been improved. 



In January of this year a notable outbreak of tuberculosis was 

 discovered by the United States Department of Agriculture, 

 through the report of meat inspectors at Burlington, which was 

 forwarded to this department for consideration and attention. 

 The federal inspector reported to the Bureau of Animal industry 

 of the Department of Agriculture the slaughter of two cows which 

 had been bought from a dairy herd in Burlington, found to be in 

 an advanced stage of tuberculous infection. The herd from which 

 these cows had been sold supplied the milk for a large number of 

 patrons in the city named. The result of our investigation was a 

 test of the entire herd of twenty-eight animals. Twenty-five of 

 them reacted. The herd was immediately placed under quarantine. 

 The owner was disposed to disbelieve the accuracy of our test on 

 account of the general healthy appearance of his cows, and de- 

 manded a retest. It is the attitude of this department that an 

 animal once unmistakably reacting to the tuberculin test is tuber- 



