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Updated: May 22, 2025
The embryo next penetrates into the body of certain snails and encysts. The sporocyst, as it is now called, develops into a third generation known as redia which escape from the cyst. The daughter redia or cercaria, as they are now termed, leave the body of the snail and finally become encysted on the stems of grass, cresses and weeds.
INTESTINAL WORMS OF SHEEP. The most widely distributed and seemingly most injurious intestinal worm of sheep is the OEsopliagostomum columbianum. It penetrates the lining membrane of the intestines and encysts in the intestinal wall. A tumor, varying in size from that of a millet seed to a hazelnut, then forms in the wall of the intestine.
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