274 SWINE 



it is true that the individual owner is not the loser alone, 

 but the loss as a whole falls upon the producer, for the 

 packer, knowing what per cent of his hogs are con- 

 demned daily, will pay sufficiently less so that this part 

 of the loss is well covered. 



Valuable breeding animals need not necessarily be dis- 

 posed of, but they should be carefully watched and taken 

 in hand when the disease first manifests itself and care 

 should be exercised that the litter is not allowed to suck 

 a tuberculous udder. 



After removing the tuberculous individuals from a herd, 

 all places occupied by the hogs should be thoroughly dis- 

 infected. Buildings and all wooden surfaces should be 

 thoroughly, washed with a five per cent carbolic acid solu- 

 tion or 1 to 1,000 corrosive sublimate solution (mercuric 

 chloride), and then whitewashed with a fresh lime mix- 

 ture. Pastures and feed lots exposed to the sun are not 

 such a serious source of danger as the buildings, but it is 

 well to keep the hogs out of infected pastures and feed 

 lots for a time after removal of the infected herd. If pos- 

 sible it is well to use other land for the new lot of hogs 

 and to plow up the old pastures and lots. 



The last but not the least important consideration to 

 free a herd from tuberculosis is to remove the cause. All 

 tuberculous feed should at once be withheld. 



