27 



exposed to the infection thereof may be shipped from 

 one State or Territory or the District of Columbia 

 into another State or Territory or the District of 

 Columbia without restriction by the regulations of the 

 Secretary of Agriculture and subject only to such 

 restrictions as maj' be imposed on the shipment by 

 State or Territorial or District of Columbia officers at 

 destination. 



Regulation 44. Public stock yards shall be con- 

 sidered infectious, and no interstate movement of 

 swine therefrom shall be made for feeding or stock- 

 ing purj.oses. Diseased swine shall not be shipped 

 interstate from the stock yards, but shall be slaugh- 

 tered, subject to condemnation on post-mortem in- 

 spection ; and all swine in a certain lot or shipment 

 shall be classed as diseased when one or more of them 

 show evidence of the disease. Swine that are not 

 diseased and have been merely exposed by being in_ 

 the yards may be shipped interstate to a recognized 

 slaughtering center for immediate slaughter. Where, 

 however, a part of the yard is set apart for the re- 

 ception of uninfected shipments of swine and is kept 

 free of infection, swine may be shipped interstate 

 from the uninfectious portions thereof without re- 

 striction. Should such part be contaminated by the 

 introduction of diseased swine, said animals shall 

 lie immediately removed therefrom, and the chutes, 

 alleys, and pens occupied by them thoroughly cleaned 

 and disinfected, as hereinafter provided. 



Regulation 45. Cars and other vehicles and pens or 

 yards which have contained interstate shipments of 

 diseased or exposed swine shall be cleaned and disin- 

 fected as soon as possible after unloading. Cars that 

 have contained interstate shipments of swine shall not 

 be removed until the inspector has ascertained the 

 condition of the live animals and either released the 

 cars or given notice that they shall be cleaned and dis- 

 infected. Cleaning and disinfection shall be done by 

 first removing all litter and manure and then satu- 

 rating the interior surfaces of the cars and the wood- 

 work, flooring, and ground of the chutes, alleys, and 

 pens with a 5 per cent solution of i)ure carbolic acid 

 in water, or with a solution containing 2 per cent of 

 cresol. When cresol is used it must be mixed with 

 soft soap in order to render it easily soluble in water. 



