. Parasites and parasitosis of the domestic animals : the zoo?logy and control of the animal parasites and the pathogenesis and treatment of parasitic diseases . Domestic animals. THE THOKN-HEADED WORM. THE LEECHES 307 the southern portion. The implantation of the worms upon the in testinal wall by means of their hooked rostrum causes limited inflam^ matory areas of red or yellowish color. The tumifaction of the wall causes the serosa to be pushed out in the form of nodules which may be of yellowish color and somewhat tubercular in appearance. Exceptionally it has been observed that the parasi
. Parasites and parasitosis of the domestic animals : the zoo?logy and control of the animal parasites and the pathogenesis and treatment of parasitic diseases . Domestic animals. THE THOKN-HEADED WORM. THE LEECHES 307 the southern portion. The implantation of the worms upon the in testinal wall by means of their hooked rostrum causes limited inflam^ matory areas of red or yellowish color. The tumifaction of the wall causes the serosa to be pushed out in the form of nodules which may be of yellowish color and somewhat tubercular in appearance. Exceptionally it has been observed that the parasite has bored through the walls of the intestine and given rise to a purulent peritonitis. As apphes to helminthiasis in general, the disturbances which these worms produce will be in proportion to their mmiber. Pain may be evidenced by continual gruntiag and rest- lessness, and there is the general derangement of digestion and the unthrift usual to heavy invasion of the intestines by worms. Young pigs suffer most and, in these particularly, there may be muscular twitchings and epilep- tiform seizures, such symptoms usually being followed by death. Treatment.—Due to the firm attachment of the worms, nttle or nothing can be accomplished by treat- ment. If this is attempted, the same remedies may be used as recommended for the ascarids (p. 241).. 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 Underhill, Benjamin Mott. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdomesti, bookyear1920
