THE HOG AND HIS DISEASES, 311 
day thought, and a disregard of them leads to the discomfort and disease 
of the animals, to extravagance in keeping, and to sickness of the human 
family. With these brief notes we pass to the consideration of the diseases, 
naming those which are confined to the hog, witha few others not so 
limited but needing particular mention. A large proportion of the disorders 
from which swine suffer are common to other animals, and hence need no 
further treatment than can be found by reference to preceding pages. 
ANTHRAX.—FOOT AND MOUTH DISEASE, ETC. 
As remarked above, swine will contract various malignant diseases by 
eating the flesh of animals which have been affected with the same, and 
also very often by drinking the milk of diseased cows. In such cases, the 
swine will present the same symptoms as are shown by the animals which 
have thus imparted the disease, and the treatment laid down for the disease 
of the animal whose flesh or milk has been taken will be required for the 
affected swine. The fact that a hog has partaken of such diseased flesh or 
milk is a sufficient guide in determining upon the character of its ailment, 
and no detailed mention of causes or symptoms is needed at this point, since 
these are not distinctive diseases of swine. 
CHOLERA.—BLUE DISEASE. 
This is a very contagious and fatal fever, which begins with shivering, 
a dull, drooping manner and loss of appetite, followed by offensive 
and perhaps bloody diarrhea, heat and redness of the surface, with blue, 
purplish, scarlet or black spots on the skin and mucous membranes. The 
animal lies on the belly and evinces pain. Vomiting of food or bile attends 
some cases, and a hard, dry cough is present in many instances. Other 
symptoms will be much thirst; quickened respiration and pulse; tem- 
perature 102° to 105° (detected by inserting a clinical thermometer in the 
rectum); thick fur on the tongue; hot, dry snout; unsteady gait behind, 
the surface of these parts then becoming cold; squealing when the belly: 
is handled; after a time all control of the hind parts is lost, the animai 
becomes stupid (whereas it is sometimes delirious in earlier stages), and the 
muscles twitch or jerk. In rare instances there may be constipatiou from 
the beginning, instead of the diarrhea. After a hog has been exposed to 
the malady the distinctive symptoms will not appear for three or four days 
in enna or one to two weeks in winter.- The disease generally proves 
fatal, death ensuing in from a few hours to five or six days. Occasionally an 
animal will pass through a slow and doubtful recovery. 
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