. A text-book of agricultural zoology. Zoology, Agricultural; Zoology, Economic. 66 STEONGYLIDiE OK PALISADE-WOEMS. exit, and live for some time free in the intestinal contents, where they breed, the ova coming umbj in the horse's excreta. The red species is by far the most abundant. They are mainly observed in young horses. From investigations during the past two years, it seems that these pests are much on the increase. Fortunately they can be soon checked by the administration of Thymol as a ' The Gape Worm (Syngamus tracheali.!^. Poultry, especially if constantly kept on the sa
. A text-book of agricultural zoology. Zoology, Agricultural; Zoology, Economic. 66 STEONGYLIDiE OK PALISADE-WOEMS. exit, and live for some time free in the intestinal contents, where they breed, the ova coming umbj in the horse's excreta. The red species is by far the most abundant. They are mainly observed in young horses. From investigations during the past two years, it seems that these pests are much on the increase. Fortunately they can be soon checked by the administration of Thymol as a ' The Gape Worm (Syngamus tracheali.!^. Poultry, especially if constantly kept on the same land, often sufifer considerable loss from the ravages of a red worm called the "Gape Worm" or "Forked ; This nematode lives in the air-passages of fowls, chicks, pheasants, and certain wild birds. On opening the trachea and bronchi of a bird showing symptoms of this disease, we find often as many as twenty red. Pig. 24.—Gapk Worm (Syngamus trachccdh). cS and ? in copvld. forked worms surrounded by a frothy saliva. The small arm of the fork is the male, which remains almost permanently attached to the female. The former is about one-fifth of an inch long, the latter about four-fifths. Thpy are coughed up by the fowls when they are mature—that is, when full of ova. The eggs escape from the body by its cadaveric decay and lie about upon the ground and in the water, from whence other birds 1 Journal of the Agric. Coll., part 6-" An Epizooty produced by species ot bcLerosiomum ni Arab Horses," by P. V. 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 Theobald, Frederick Vincent, 1868-1930. Edinburgh and London, W. Blackwood and Sons
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1899
