476 HORSE, SWINE AND POULTRY DISEASES 



ence of alkali in the swill, a change of food should result in a prompt 

 improvement in the condition of the animals. If this does not oc- 

 cur, then, of course, hog cholera or some other germ disease should 

 be at once suspected. (F. B. 379.) 



Some conditions or diseases which resemble cholera are tuber- 

 culosis, although this disease is usually much glower in its progress ; 

 ordinary digestive troubles, due to improper feeding or unsanitary 

 surroundings; anthrax; pneumonia, caused by dust, cold or worms. 

 Garbage which contains much soap, lye or salt will frequently cause 

 death with symptoms resembling cholera. Moldy bread, cotton- 

 seed meal, new corn, or too sudden changes of feed. Many things 

 which are unfit for human food are thrown into the s'will barrel, to 

 form toxins and ptomains. These may cause vomiting, bloody 

 diarrhoea, griping, nervous troubles, weakness, staggering gait, dull- 

 ness, and death, all of which are laid to cholera. (Kan. E. S. 

 B. 163.) 



SWINE PLAGUE. 



It is not practicable for a farmer to attempt to distinguish be- 

 tween hog cholera and swine plague, for, while swine plague is gen- 

 erally regarded as a lung affection, and hog cholera as a disease of 

 the intestines, the fact is that practically all of the lesions which 

 are found in cases of hog cholera have also been reported as being 

 present in outbreaks of swine plague. There is at present a ten- 

 dency on the part of those who have investigated these diseases to re- 

 gard 'both hog cholera and swine plague as being caused by the same 

 invisible germ, the predominance of lung lesions in one case and 

 intestinal inflammation in the other being caused by the action of 

 different germs which attack the hog after it has been made sick by 

 the invisible germ which is looked upon as the prime cause of the 

 disease in both cases. However this may be, it is quite safe to say 

 that the great losses which occur among hogs in this country are 

 brought about by hog cholera, and that, for the present at least, we 

 may ignore the existence of swine plague as a separate disease, es- 

 pecially as the general measures for controlling it are the same as 

 those required in oases of hog cholera. (F. B. 379.) 



These two diseases resemble each other, and as both are equally 

 contagious, the same measures must be used in prevention and con- 

 trol. (N. D. B. 83.) 



FEDERAL REGULATIONS TO PREVENT THE SPREAD OF HOG CHOLERA 

 AND SWINE PLAGUE. 



Regulation 47. No swine which are diseased with hog cholera 

 or swine plague, or which have been exposed to either of the diseases 

 by contact with diseased animals or by confinement in infected 

 cars, pens, or other premises, shall be transported, trailed, or driven 

 from one State or Territory into another State or Territory or the 

 District of Columbia, except as hereinafter provided. All persons 

 intending to ship swine shall ascertain before offering them for 

 shipment that the animals are not diseased and have not been ex- 

 posed to the contagion of either disease. 



