Dr. Hess stock book : a scientific treatise on horses, cattle, sheep, hogs and poultry drhessstockbooks00hess Year: 1901 62 DR. HESS SCIENTIFIC TREATISE. tubercules are generally composed of a cheesy substance; they may be very minute or attain considerable size. They may also be found in almost any tissue of the body, such as the lungs, lymphatic glands, intes- tines, muscles, liver, pancreas, kidneys, mammary gland, and other tissues. v Causes: The causes of tuber- culosis can frequently be traced to low hy- gienic surroundings, such as damp, illy venti- lated stables, overcrowding, inbr
Dr. Hess stock book : a scientific treatise on horses, cattle, sheep, hogs and poultry drhessstockbooks00hess Year: 1901 62 DR. HESS SCIENTIFIC TREATISE. tubercules are generally composed of a cheesy substance; they may be very minute or attain considerable size. They may also be found in almost any tissue of the body, such as the lungs, lymphatic glands, intes- tines, muscles, liver, pancreas, kidneys, mammary gland, and other tissues. v Causes: The causes of tuber- culosis can frequently be traced to low hy- gienic surroundings, such as damp, illy venti- lated stables, overcrowding, inbreeding and from inoculation, or even from inspired air containing the bacilli of tuberculosis. It can Suffer,nSfrom Tuberculosis, be transmitted from the parents to the offspring. The disease affects almost all domestic animals, as well as man. Symptoms: Tuberculosis is usually not rapidly fatal. The disease may be present for months without any appreciable symptoms. Animals that were in prime condition when slaughtered have been found to contain tubercules. * The ani- mal may show some loss of condition, with roughness of the hair, tenderness upon pressure upon the back and loins; there may be present an occasional cough, especially in animals cha^r-d from a warm stable to a cold atmosphere, the appetite ma> remain good. If a cow, the secretion of milk is sometimes diminished, becomes bluish in tint and contains less fat. The udder may also show signs of disease by presenting hard nodules under the skin, the temperature may remain normal; if the bowels are affected there may be diarrhoea alternating with constipation. If the lungs are affected for the greater part the cough will be more marked, pressure upon the sides of the chest will give the animal pain. As the disease pro- gresses these symptoms become more marked, the animal be- comes poor and emaciated, the movements very sluggish, the eyes look dull, the skin is dry and covers the ribs closely. Slight exercise produc
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