APPENDIX 303 



graph 3, section 10, of Regulation 19. After receiving 

 this treatment they shall be held under the supervision 

 of a bureau employee for a period of at least 21 days, 

 except when treated with virus and serum released for 

 marketing. If no symptoms of hog cholera or other in- 

 fectious, contagious, or communicable disease are ex- 

 hibited by the animals, they shall be disinfected as pre- 

 scribed in paragraph 5 of this section. 



SECTION 9. Paragraph 5. Before removal from the 

 premises of licensed establishments all hogs shall be dis- 

 infected in a 2 per cent aqueous solution of cresol com- 

 pound, U. S. P., or a permitted substitute therefor, and 

 held in noninfectious pens for a period of at least three 

 hours before being loaded for transportation. When 

 the temperature of the air is below freezing, comfort- 

 able quarters shall be furnished for the disinfected ani- 

 mals until they are dry. 



REGULATION 18. HOG-CHOLERA VIRUS 



SECTION 5. Paragraph 5. Trade labels affixed to or 

 used in connection with each immediate or true con- 

 tainer of simultaneous virus shall bear a dosage table 

 in which the doses recommended are not less than those 

 appearing in the following table: 



Weight. Minimum Dose. 



Pigs weighing 45 pounds or less 1 c. c. 



Hogs weighing more than 45 pounds 2 c. c. 



REGULATION 19. ANTI-HOG-CHOLERA SERUM 



SECTION 6. Paragraph 2. Anti-hog-cholera serum the 

 test of which has proved it to be "unsatisfactory," as 

 defined in 1 and 2 of rule C of this regulation, may be 

 tested again as described in sections 4 and 5 of this 

 regulation. Should the second test prove to be "satis- 

 factory, ' ' as defined in rule D, the serum may be released 



