. Common diseases of farm animals. Veterinary medicine. 274 INFECTIOUS DISEASES The death rate in hog-cholera varies in the different forms of the disease. The average death rate is about fifty per cent. Differential Diagnosis.—The diagnosis of hog-cholera in the field must depend on the clinical symptoms, post-mortem lesions and history of tlie outbreak. The history should be that of a highly infectious disease. Abnormal body tempera- tures of a large percentage of the herd indicate the presence of an acute infectious disease. We should then destroy one of the sick hogs and make a careful pos
. Common diseases of farm animals. Veterinary medicine. 274 INFECTIOUS DISEASES The death rate in hog-cholera varies in the different forms of the disease. The average death rate is about fifty per cent. Differential Diagnosis.—The diagnosis of hog-cholera in the field must depend on the clinical symptoms, post-mortem lesions and history of tlie outbreak. The history should be that of a highly infectious disease. Abnormal body tempera- tures of a large percentage of the herd indicate the presence of an acute infectious disease. We should then destroy one of the sick hogs and make a careful post-mortem exami- nation (Fig. 80). An early diagnosis of the disease is necessary, as this enables us to use curative treatment when it will do some good, and take the necessary steps toward preventing the sjjread of the ^ jr ^^Ai ^M '^^^' disease to neighboring herds. ^ ^^Bl^^ —i Intestinal and lung ivorms are common in young hogs. The presence of these worms does not always indicate that they are the cause of the sick- ness and death of the animal. Such parasites are injurious and may cause disease, but it is only in rare cases that they cause death. " Pig typhoid " is sometimes spoken of as a highly infectious disease involving the intestines. A disease of hogs that may be termed typhus-fever sometimes affects a large number of the hogs in the herd. This disease occurs among hogs kept in small. Fig. 80.—Carcass of a rholera hog showing (A) different groups of lymphatic glands; (B) kidneys; and (C) ulcer on Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Craig, Robert Alexander, 1872-. Philadelphia London, J. B. Lippincott company
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Keywords: ., bookpublisherphilad, booksubjectveterinarymedicine, bookyear1919
