52 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



tions have already been made by State officials in 21 different States. 

 The results of this work have been extremely favorable. 



At the request of Nebraska State officials and the Nebraska Swine 

 Breeders' Association the bureau carried out a demonstration with 

 the preventive serum at South Omaha during the 3'ear, similar to a 

 previous test held at Kansas City. Thirty young hogs were used, of 

 which 4 were inoculated with blood from hogs sick of hog cholera, 

 18 were given one dose of the serum, and the remaining 8 were left 

 untreated. All the hogs were then placed together in one pen, the 

 experiment extending from July 23 to September 17. The result was 

 that the 4 inoculated hogs as well as the 8 untreated hogs died of 

 hog cholera, while the 18 hogs that had been given the serum all 

 remained perfectly well. 



RABIES. 



During the fiscal year the brain tissues from 173 suspected cases of 

 rabies were examined in the pathological laboratory at Washington, 

 including 152 dogs, 8 cattle, 2 hogs, 1 horse, and 1 goat. The great 

 majority of these cases came from the District of Columbia and the 

 surrounding country. One hundred and thirty proved to be positive, 

 the method of diagnosis being the detection of Negri bodies, sup- 

 plemented in some instances by the inoculation of rabbits. 



EXPORT AND IMPORT ANIMALS. 



During the fiscal A'ear there were made 370,369 inspections of 

 American and 32,470 inspections of Canadian animals for export. 

 The number of animals actually exported was 171,006; the greater 

 number of inspections is accounted for by the fact that many of the 

 animals were inspected two or more times. This work also includes 

 the supervision of vessels, of which 438 inspections were made. 



All live stock for export to Canada are inspected by bureau veteri- 

 narians, and cattle, horses, and mules must in addition be tested — 

 the cattle with tuberculin and the horses and mules with mallein. 

 During the year 13,404 horses, 1,046 mules, and 460 cattle were thus 

 tested, the reactions numbering 251 horses, 12 mules, and 16 cattle. 

 The other inspections for Canada were 28,428 sheep, 25 goats, and 

 110 swine. 



A strict inspection, with quarantine in certain cases, is maintained 

 over all animals imported from foreign countries. This is neces- 

 sary in order to exclude the numerous animal diseases which arc 

 prevalent in other parts of the world. For this purpose hay, hides, 

 wool, etc., are also inspected and disinfection required. The total 

 number of import animals inspected during the year was 261,478, 

 and of these 4,127 were quarantined in accordance with the regu- 

 lations. 



