4 
COLORADO EXPERIMENT STATION 
tissue until it has produced a deep cavity. It may be the jaw bone or 
end of the tongue, tips of the ears, or perhaps has involved a large area 
of the stomach. This is not the worst of it perhaps, for while the 
germs are growing, they secrete poisons (toxins) which are absorbed 
and poison the whole body. 
Symptoms: When this disease gets among the herd the pigs from 
a few weeks up to a year old are seen (first one or two) to be unthrifty; 
on examining the mouth, there is usually found a deep sore, (not 
always), the back is arched, there is a loss of appetite, and within a few 
days the pigs are dead. Examination of the carcass after death will 
always reveal the presence somewhere on the body (inside or out), of 
deep seated angry looking ulcers. 
'/ Prevention and Treatment: To allow this disease to spread 
among the herd is little short of criminal. 
If your hogs are healthy and your neighbors hogs have this disease, 
see to it that you do not purchase any animals from him and thus 
infect your own herd. The farmer himself may carry the infection 
on his boots. Clean out the pens frequently, scrub out the feed troughs, 
and keep them well supplied with clean bedding. 
If this is too much trouble, then be prepared to take the conse¬ 
quences. If the hogs have the disease it can be stopped with little 
expense of time and labor. 
How to Proceed: First; isolate the healthy from the sick animals, 
dip all the healthy pigs in a barrel of the following solution: potassium 
permanganate i-oz. to one gallon of water. Place all of these healthy 
pigs that have been dipped, by themselves in clean new quarters, and 
dip them once a week. Second; the sick pigs may be treated by burn¬ 
ing out any sores with lunar caustic and dipping them like the others. 
Usually however, it will be better to destroy them and burn the car¬ 
casses. Third; disinfect the premises. Rake up all the litter and burn 
it. Whitewash the fence posts, plough the pasture, scrub the feed 
troughs in boiling water, burn sulphur in closed buildings. It may 
be necessary to follow this proceedure a second or even a third time. 
Success at the start is the reward of thoroughness with which every 
detail of the work of isolation and disinfection is carried out. 
Lip and Leg Ulceration or Necrotic Dermatitis of Sheep. 
By Dr. Geo. H. Gcover. 
This is an infectious disease of sheep which has recently appeared 
in the West. It is caused by the same organism as sore mouth disease 
of pigs. This germ (bacillus necrophorous ) not only affects pigs, 
calves and sheep but may attack any warm blooded animal. People 
have been affected. 
Before this germ can invade the body it is necessary for the skin 
or mucous membrane to be broken; the germ once having gained 
entrance into the tissue, begins its special business of tissue destruction, 
in whatever part of the body it has found lodgment. This organism 
is no doubt the cause of many of the persistent sores on the feet and 
legs of horses, sometimes on the neck and shoulders. In sheep the 
