DISEASES OF SWINE 475 



acid or other commercial disinfectants are commonly used. Pastures 

 and bog lot< may be improved by removing the hogs for a few weeks 

 each year, and cleaning away all litter. The unused lots can be 

 plowed and planted with a suitable forage crop. Precautions against 

 contaminations of food and drinking water must be taken. Muddy 

 yards soon become filthy and endanger the health of the animals. 

 They should be well drained, and all wallow holes filled. It is poor 

 practice to use pens and yards where drainage from other lots col- 

 lects or puddles. The quarters where hog cholera has raged should 

 be thoroughly cleaned; all walls, floors and troughs scraped, after 

 which a good disinfectant should be applied with a brush or force 

 spray pump. All litter should be removed and burned, the yards 

 plowed and seeded, or where this is not practical, dry straw spread 

 over the ground and burned will be effective. Crude oil applied with 

 a body brush will effectually destroy lice and other external parasites. 

 Repeat treatment in seven days until all are killed. The following 

 solutions are recommended for disinfecting the premises: 



Compound of Creosote 1 part to 30 parts water 



Crude Carbolic Acid 1 part to 30 parts water 



Corrosive Sublimate 1 part to 800 parts water 



Troughs should never be permitted to get sour or filthy as is 

 often the case when the animals are overfed and fail to eat all that 

 is put before them. The feeding of corn on cement or wooden 

 floors is positive economy, especially where the yards are small and 

 often muddy. Dry roomy sleeping quarters are essential during the 

 winter months, and shady runs in summer. Pastureless pigs are 

 neither the most profitable, nor the most resistant to prevalent dis- 

 eases. (N. J. L. S. C Cir. 1.) 



All straw, cobs and litter should be removed and, if cholera is 

 present, burned, and a strong solution of some good coal-tar dip or 

 crude carbolic acid, about one part of the dip to twenty of water, 

 used on all woodwork and floor of the pens; slaked lime scattered 

 over the ground and floors of the pens every few days will help to 

 keep them clean. (Kan. B. 163.) 



Diseases Which may be Mistaken for Hog Cftofcra. Among 

 the few diseases which may lead to uncertainty are digestive trou- 

 bles (due to improper feeding), swine plague, tuberculosis, anthrax, 

 and inflammation of the lungs caused by worms. 



Although hogs are frequently made sick by improper feeding, 

 there is rarely any cause of mistaking such illness for hog cholera, 

 the only trouble of this character which is likely to give rise to con- 

 fusion being in the case of swill-fed hogs. Dr. V. A. Moore has 

 reported a disease among swill-fed hogs which closely resembled hog 

 cholera and which was directly traceable to the presence of powdered 

 soaps in the slops. Some of these soaps contain a large amount of 

 alkali, and when mixed with the garbage used for feeding hogs will 

 bring about lesions in the internal organs which are very similar to 

 those seen in hog cholera. In most cases it will probably not be 

 difficult to distinguish such a disease from hog cholera, especially if 

 the mode of feeding be considered. If the illness is due to the pres- 



