Common Diseases of Farm Animals by D. V. M. R. A. Craig
page 282 of 328 (85%)
page 282 of 328 (85%)
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healthy animals. The dose of virus recommended varies from one to two cubic
centimetres for each hog. In vaccinating _small pigs_ not more than five, and in large hogs not more than twenty, cubic centimetres should be injected at any one point. The _body temperature_ of each animal should be taken. A body temperature of 103.5\260 F. in a mature hog and a body temperature of 104\260 F. in a young hog may indicate hog-cholera. Exercise, feeding and close confinement in a warm place may raise the body temperature above the normal. Hogs that are to be vaccinated or treated should not be given feed for at least twelve hours before handling them. If possible they should be confined in a roomy, clean, well-bedded pen. If this is practised, they are cleaner and easier to handle and their body temperatures are less apt to vary. After the treatment or vaccination the hogs should be fed a light diet for a period of at least ten days, and the ration increased gradually in order to avoid causing acute indigestion. This is necessary because of the elevation in body temperature resulting from the inability of the animal to digest heavy feeds, kitchen slops and sour milk. If poor judgment is used in caring for the vaccinated hogs, and the person who vaccinates them uses careless methods, heavy losses from acute indigestion, blood poisoning, or hog-cholera may occur. QUESTIONS 1. What is the specific cause of hog-cholera? Give and describe the different methods of spreading the disease. |
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