SANITATION IN THE HOG LOT 5OI 



cased swine. All recovered swine, and especially those 

 that ha\'e been very sick, should be kept apart from the 

 new hogs brought on the place. Before attempting dis- 

 infection, all manure and other litter must be removed, 

 and scattered on some part of the farm not accessible to 

 the hogs. 



"Experiments have shown that many of the disinfec- 

 tants in conmion use, have the power to destroy the 

 cholera virus, and that, consequently, if the nature ot 

 the place to be freed from infection is such that the 

 cleansing agent can come in contact with the virus, dis- 

 infection is easy. For example, in the hog cholera ex- 

 periments conducted by the government, closed pens 

 with board floors are easily and successfully cleaned, 

 but swine pens with dirt floors and yards present an en- 

 tirely different problem, as the virus penetrates the soil 

 and litter, is not readily reached, and can only be de- 

 stroyed by a large quantity of the preparation used, thus 

 rendering the operation impracticable. 



"In the disinfection of buildings, sheds, floors, etc., 

 the idea is to use some solution destructive to the virus 

 and in such a way that it will come in contact with, and 

 saturate, all parts of the pen. There must be no un- 

 touched places where the germs may escape destruction. 

 For the application of the disinfecting- solution nothing 

 is so effective as a good spray pump, the nozzle being 

 adjusted at times so as to throw a solid stream for pene- 

 trating cracks and cre\iccs. A sufficient quantity of 

 the solution must l)c used to thorouglily soak through 

 .iiiv litter on floors, all dirt in the cracks between the 



