HOG CHOLERA : 



PREVENTION AND TREATMENT. 



15 



herds and thus contract and spread cholera. It is undoubtedly true 

 that infection in main' cases results from the purchase of new stock, 

 and at times from the borrowing and lending of stock for breeding 

 purposes. There is a record of six different farms having become in- 

 fected from the purchase of stock from one public sale where sick 

 hogs were kept hidden from view. A number of outbreaks have been 

 caused by the failure to take proper precautions in the case of stal- 

 lions and other breeding animals which were kept on infected 

 premises from which infection was carried through the community 

 from farm to farm. 



Farms on which hog cholera has occurred may remain infected 

 for a considerable time, and a second outbreak may occur as a result 

 of this infection. 



KEEPING CHOLERA OFF THE FARM BY SANITATION. 



From what has been said it will be seen that hog cholera may be 

 spread in many ways, and that most, if not all, of the sources of 

 danger may be excluded by the use of proper care and foresight on 

 the part of the farmer. 



With the object of assisting the farmer to protect himself the fol- 

 lowing suggestions are offered: Hog houses, lots, and pastures should 

 be located away from streams and public highways, and the houses 

 and lots should be arranged so that they may be cleaned and dis- 

 infected readily. They should be exposed as far as possible to sun- 

 light, which is the cheapest and one of the best disinfectants. Hog 

 lots should not be used for yarding wagons and farm implements 

 and should not be entered with team and wagon, particularly when 

 loading stock for shipment to market and when returning from stock- 

 yards and public highways. No one should be allowed to enter hog 

 lots unless there is assurance that he does not carry infection. Farm- 

 ers and their help should disinfect 1 their shoes before entering hog 

 lots after returning from public yards, sales, and neighboring farms. 



"Wallow holes and cesspoles should be drained, filled in, or fenced 

 off. 



Runs underneath buildings should be cleaned and disinfected and 

 then boarded up. Straw stacks that have been frequented by sick 

 hogs should be burned or removed to the field and plowed under. In 

 fact, it is a dangerous practice to leave remnants of stacks from year 

 to year, and new tenants should beware of this source of danger. 



Hogs that do not recover fully from cholera should be destroyed, 

 as they remain constantly dangerous. 



1 Compound cresol solution (U. S. P.), or a suitable substitute therefor, may be a very 

 satisfactory disinfectant for use against hog cholera. The substitute for compound solu- 

 tion of cresol (see B. A. I. Order 245, p. 5) is called " saponified cresol solution." Both 

 products contain 50 per cent of cresol. They are used in 3 per cent solution. This solu- 

 tion is made by adding 4 fluid ounces of the concentrated disinfectant to 1 gallon of soft 

 water. 



