BUREAU OF ANIMAL INDUSTRY. IS 9 



more years have elapsed. In fact, plans have been drafted for the 

 conduct of the work in many States with a view to the complete 

 eradication of the disease Avithin the next five years. 



Cooperation was extended durin^r the year to include all the 48 

 States and the Territories of Hawaii and Alaska. The last States 

 to provide the necessary leoislation and funds were New Mexico, 

 Arizona, and California. Field offices are maintained by the bureau 

 in 43 cities in as many States. An average of 247 regularly employed 

 veterinary inspectors were detailed to these offices during the year, 

 and they were supplemented by an average of 172 State inspectors 

 and an average of 38 county, city, or farm bureau veterinarians. 



Despite increased appropriations by Congress, the available funds 

 were insufficient for pressing the work as rapidly as was desired by 

 herd owners. At the close of the fiscal year 35,239 herds, com- 

 prising approximately 508,128 cattle, were on the waiting list for 

 future testing, as compared with 14,440 herds containing 216,000 

 cattle a year preA'iously. 



In accordance with the practice established in previous years, the 

 activities were carried on under four main projects: (1) Eradication 

 of tuberculosis from purebred herds of cattle under the "Accredited- 

 herd " plan; (2) eradication of tuberculosis from circumscribed 

 afeas; (3) eradication of tuberculosis from swine; (4) control of 

 the tuberculin testing of cattle intended for interstate shipment 

 through supervision of the work done by practicing veterinarians on 

 the approved list and at public stockyards. 



ACCREDITED TUBERCULOSIS-FREE HERDS. 



The plan for the eradication of tuberculosis from herds of pure- 

 bred cattle and maintaining a list of such herds officially accredited 

 as being free from tuberculosis was slightly modified at the meet- 

 ing of the United States Live Stock Sanitary Association in Novem- 

 ber, 1921, so as to make larger use of accredited practicing veteri- 

 narians and thus to expedite the testing. Such practitioners may 

 now, under the direction of State authorities, apply the tuberculin 

 test to herds undergoing original tests at the expense of the owners 

 and without obligating the Federal Government for indemnity. 



At the conclusion of the fiscal year there were under supervision 

 212.182 herds containing 2,616,395 cattle, an increase of 140,376 

 herds and 1.420,598 cattle within the year. In other words, the 

 work was more than doubled during the year. These figures, how- 

 ever, include the area work, which will be reported under another 

 heading. The number of cattle to which the tuberculin test was 

 applied was 2,384.236, of which 82,569, or 3.5 per cent, were con- 

 demned as diseased. At the close of the fiscal year there were 16,216 

 fully accredited herds containing 363,902 cattle, as against 8.201 

 herds containing 193,620 cattle a year previously. In addition 

 161,533 herds containing 1.548.183 cattle passed one test as a pre- 

 liminary to being accredited, as compared Avith 49,814 herds and 

 643,233 cattle a year before. The accompanying table shows by 

 States the number of accredited herds and cattle and the number of 

 herds and cattle that have passed one test : 



