REPORT OF THE CHIEF OF THE BUREAU OF ANIMAL 



INDUSTRY. 



United States Department of Agriculture, 



Bureau of Animal Industry, 

 Washington, D. C, Septemler IS, 19£2. 

 Sir : I have the honor to transmit herewith a report of the opera- 

 tions of the Bureau of Animal Industry for the fiscal year ended June 

 30, 1922. 



Respectfully, . 



J. R, MoHLER, 



Chief of Bureau. 

 Hon. Henry C. Wallace, 



Secretary of Agriculture. 



ACTIVITIES OF SPECIAL PROMINENCE. 



PROGRESS IN CONTROLLING BOVINE TUBERCULOSIS. 



Because of the far-reaching effects of bovine tuberculosis on the 

 livestock industry, progress in eradicating this disease is a subject 

 of commanding interest. During the fiscal year covered by this 

 report cooperative Federal-State tuberculosis eradication has given 

 highly encouraging results. Herds accredited as free from the 

 disease increased from 8,201 to 16,216. There was even greater gain 

 in the number of herds tested once without showing reactors, the 

 number being 161.533 compared with 49,814 for the preceding year. 



The support which tuberculosis eradication is receiving from live- 

 stock owners may be judged from the length of the waiting list. On 

 June 30. 1922, there were on file unfilled applications for testing 

 35,239 herds containing more than half a million cattle. These num- 

 bers are more than double those of previous years. Few serious 

 obstacles have been encountered and enthusiasm in the campaign for 

 eradicating tuberculosis has steadily increased. The chief problem 

 is to meet the demand for testing with the funds and facilities pro- 

 vided. 



CONFERENCES FACILITATE WOKK. 



During the year several conferences of State, Federal, and local 

 authorities were held to discuss and perfect plans for the work. Such 

 problems as technic in making tests, details of planning and conduct- 

 ing testing on an area scale, and scientific developments in the trans- 

 mission of the disease were prominent topics for discussion. By 

 thus keeping abreast of developments and approved methods, officials 

 in charge of tuberculosis eradication have been able to show progress 

 which admittedly has surpassed expectations. 



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