300 DISEASES OF SWINE 



as sheep or cattle. These animals, through shipment in in- 

 fected cars, may gather up enough disease-producing germs on 

 their hoofs to be the cause of a cholera outbreak on your premises. 



(12) Transportation of Hogs. — In the removal of infected and 

 exposed animals to market along pubhc highways every precaution 

 must be taken to protect the health and safety of other herds which 

 may be located along the route of travel. Such shipment, if 

 allowed at all, should only be allowed in tight wagon beds, and 

 under no consideration in the open crate-like beds which allow 

 of the free scattering of the infection along the roadway. 



(13) Worthless Dogs. — Do not keep any worthless tramp dogs 

 on your farm, and do not permit the trespassing on your farm of 

 such animals owned by your neighbor. Warn the owner that the 

 animal must be kept at home, and, if he fails to comply, shoot or 

 otherwise destroy the animal if again found in your feed lots. 

 These tramp dogs are very often carriers of cholera infection, especi- 

 ally in those neighborhoods where the dead animals are disposed 

 of by burial, and they do not possess any value as compared with 

 the great amount of harm which they may cause. 



(14) Chickens and pigeons should not be allowed to travel 

 about from one feed lot to another. In the case of chickens, 

 it is a very easy matter to control their range, but in the case 

 of pigeons it is often a difficult proposition. Yet, in cases where 

 they seem to be dangerous as a possible source of spread of 

 the disease, they should, if necessary, either be penned up or de- 

 stroyed. Their flights can usually be controlled either by clipping 

 or tying up of the wings. This can be so done as to prevent any 

 very long flights, and yet allow enough motion to enable them to 

 get to and from their nests. 



(15) Traveling Hog Buyers and Butchers. — Absolutely insist 

 that these men keep out of your feed lots. You can never tell 

 when they have come from an infected feed lot, and, as a matter of 

 fact, they often do not know it themselves, as they may enter a 

 feed lot in which cholera is just getting a start and in which the 

 disease is not yet plainly to be seen. You can show your animals 

 just as well by having the buyer remain outside while you drive the 

 animals up along the fence, where they can be seen without ex- 

 posing your pens to the dangers of infection. 



