iso DISEASES OF THE HOG. 
pigs; from six months to one year is the usual age. 
The disease does not seem to do any particular 
harm to the hog as far as its growth and health are 
concerned. 
Symptoms: The first thing noticed is an irreg- 
ular jerking motion of some of the muscles, espe- 
cially. those of the shoulder, fore leg, or neck. It 
gives the animal an unsteady gait. When the 
muscles of the trunk are the ones affected the ani- 
mal is pulled to one side or the other. I have seen 
cases where the pig started off its hind parts would 
drag so much to one side that it would cause the — 
animal to fall over. In slight cases there may only 
be a jerking of the muscle which is of little incon- 
venience to the animal. This derangement is easily 
diagnosed by the absence of fever, coma, delirium 
and rigid spasms of other nervous diseases which 
are not present in this one. 7 
Treatment: In the great majority ofcases treat- 
ment should not be tried. It usually does not affect 
the health of the animal and it can be fed for mar- 
ket as well as the others. If it should affect the 
muscles of the mouth so as to prevent the animal 
from eating as well as is necessary in feeding hogs 
medicine may be tried. The subcarbonate of iron 
in half to one dram doses in the food three times 
a day is a good remedy. The sulphate of zinc in 
two grain doses increased to three or four if the 
stomach will bear it or Fowler’s solution of arsenic 
in five drop doses three times a day in food is also” 
good. 
