. Diseases of the dog and their treatment. Fig. 100.—Dog with tetanus. It may originate from a scratch or from a very large wound. Thetemporary trismus seen in young animals that have eaten decayed meatshould be classed under ptomaine poisoning, and not under anatomical examination is almost always negative; hypera^miaand congestion of the cord which is occasionally seen is of secondaryimportance as it seems to have no actual bearing on the true cause of thedisease. Symptoms.—The period of inctd)ation in a dog is not known posi-tively, as the cases are so rare, but probably it is a
. Diseases of the dog and their treatment. Fig. 100.—Dog with tetanus. It may originate from a scratch or from a very large wound. Thetemporary trismus seen in young animals that have eaten decayed meatshould be classed under ptomaine poisoning, and not under anatomical examination is almost always negative; hypera^miaand congestion of the cord which is occasionally seen is of secondaryimportance as it seems to have no actual bearing on the true cause of thedisease. Symptoms.—The period of inctd)ation in a dog is not known posi-tively, as the cases are so rare, but probably it is about the same as ahorse—from five to twenty days—depending probably on the vir-ulence of the bacilli. The general symptoms are stiff stilty gait, the neckand head are extended, the expression is staring and anxious, the ears aredrawn forward and pointed, the membrana nictitans is draw^n over theeye, wrinkling of the skin of the f9rehead, retraction of the angle of the. TETANUS 311 mouth, with difficulty in eating and drinking, the penis is erect and themuscles of the body are hard and outlined, the animal is nervous andanxious; the pulse and temperature are generally little altered. In onecase there was an elevation of temperature; the case recovered. Theduration of the disease is about a week, but it may vary. As recoveriesare recorded from time to time, it cannot be regarded as always incurable. Therapeutics.—The treatment is generally palliative. The woundmust be examined and treated with antiseptics, and use such sedativesas morphine, dilute hydrocyanic acid, chloral; it must be rememberedthe most important matter is to keep up the animals strength witheasily digested food—scraped meat, beaten up eggs. Where the trismusmakes it impossible to administer food by the mouth, it should be givenin the form of nutritive clysters. Tetanus antitoxin may be tried; the dose is 5 daily. CONSTITUTIONAL DISEASES. Anaemia and Chlorosis. By ansemia in
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