. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 676 INFKCTIOUS DISEASES. this region are due to specific inoculation of external injuries. Fistulse originating in tlie parotid region and in the upper part of the neck usually resemble in appearance the maxillary fistulae. The external fungoid growth, however, is less exuberant, suppuration is less abun- dant, and the surrounding induration less extensive. Various localisations. Although the disease generally attacks the mouth, tongue or pharynx, it may invade the oesophagus, Fict. 272.—Actinomycosis of niaiumary gland
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 676 INFKCTIOUS DISEASES. this region are due to specific inoculation of external injuries. Fistulse originating in tlie parotid region and in the upper part of the neck usually resemble in appearance the maxillary fistulae. The external fungoid growth, however, is less exuberant, suppuration is less abun- dant, and the surrounding induration less extensive. Various localisations. Although the disease generally attacks the mouth, tongue or pharynx, it may invade the oesophagus, Fict. 272.—Actinomycosis of niaiumary gland (cow). reticulum, liver and intestine, larynx, trachea, lung, peritoneum, epiploon, and even the udder. Localisations in the udder and peritoneum are commonest in pigs, and it is believed that inoculation occurs either through the galacto- phorous sinuses or through the abdominal wounds made for purposes of castration. Causation. The cause of actinomycosis is to be sought in the development of Actiuoiiii/crs horis within living tissues. It seems pro- blematical whether the germs to be found in the pus or saliva of affected animals ever directly infect new hosts, and it is difficult to carry out infection in this manner even in very sensitive experimental. 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 Moussu, Gustave, 1864-; Dollar, Jno. A. W. (John A. W. ). Chicago : American Veterinary Pub. Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectveterin, bookyear1920
