. Veterinary studies for agricultural students. Veterinary medicine. BOVINE TUBERCULOSIS. 1SI disposing conditions undoubtedly have much to do with the de- velopment of this disease; for instance, close confinement, lack of ventilation and sunshine, injudicious inbreeding and inherited susceptibility. Modes of entrance. —(i ) Lungs, with inhaled air; (2) stomach and intestines, with food and drink; (3) by inoculation through broken skin or mucous membrane ; (4) by infection in utcro, i. e., before birth. This (4) is very rare and probably of small importance compared with the FIG. 57.
. Veterinary studies for agricultural students. Veterinary medicine. BOVINE TUBERCULOSIS. 1SI disposing conditions undoubtedly have much to do with the de- velopment of this disease; for instance, close confinement, lack of ventilation and sunshine, injudicious inbreeding and inherited susceptibility. Modes of entrance. —(i ) Lungs, with inhaled air; (2) stomach and intestines, with food and drink; (3) by inoculation through broken skin or mucous membrane ; (4) by infection in utcro, i. e., before birth. This (4) is very rare and probably of small importance compared with the FIG. 57. BOVINE TUBERCULOSIS. CI/. 11. Ii.) A case showing plain symptoms of disease. Rare type. Structures affected. —Tuberculosis may affect any tissue or organ of the body. Milk from tuberculous cows may be tubercu- lous, but the danger is especially great when the udders are af- fected. Extent of tissue diseased may vary from a few small lym- phatic glands to a general invasion of lungs, liver, kidneys, mesen- teric glands, peritoneum and pleura. Symptoms. —These vary according to extent and location of the disease. A few cases become thin and rough in appearance, and have chronic cough or chronic diarrhoea and show that they Digitized by Microsoft®. 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 Reynolds, Myron Herbert, 1865-. St. Paul, St. Anthony Park, Minn. , The author
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectveterin, bookyear1903
