. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 288 DISEASES OF THE LIVEK. the liver and to puncture and evacuate the contents of some of the cysta; but the result would be illusory, because some vesicles would always be inaccessible, and economically intervention would be incomplete and useless. Although there is no useful method of treatment, prophylaxis is possible and valuable. It consists in preventing the development of taeniae in farm and sporting dogs. For this purpose it is sufficient to prevent their obtaining raw offal containing vesicles of echinococci from sheep
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 288 DISEASES OF THE LIVEK. the liver and to puncture and evacuate the contents of some of the cysta; but the result would be illusory, because some vesicles would always be inaccessible, and economically intervention would be incomplete and useless. Although there is no useful method of treatment, prophylaxis is possible and valuable. It consists in preventing the development of taeniae in farm and sporting dogs. For this purpose it is sufficient to prevent their obtaining raw offal containing vesicles of echinococci from sheep, oxen, or pigs, and also to free them from any helminths which they may harbour. In this way they no longer spread eggs of taeniae. ^rxx?Z&C OaI riaX' <^ jiof-^- Fig. 133.—Pig's liver with echinococciis cysts. (After Eailliet.) with their faeces in the neighbourhood of ponds or drinking places, and the cattle do not ingest the embryos. SUPPURATIVE ECHINOCOCCOSIS. Causation. Simple echinococcosis may remain undetected for a long time, and young animals affected with it may grow up without exhibiting marked general disturbance. The old echinococci end by degenerating, the wall of the cyst becomes modified, the liquid it contains, turbid, lactescent, then caseous; the vesicle becomes wrinkled, and finally nothing resembling the primary vesicle remains. The liquid is soon absorbed, and the primary cyst is only represented by a caseous magma, which undergoes calcareous infiltration and progressive atrophy. Under other circumstances the development of the echinococcus. 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, John A. W. , joint author. New York, W. R. Jenkins
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