Diseases of poultry; their etiology, Diseases of poultry; their etiology, diagnosis, treatment, and prevention diseasesofpoultr00pear Year: 1915 142 Diseases of Poultry Stiles says: ' An extermination of slugs will insure im- munity against Davainea proglottina, but no precise directions can be given to prevent chickens from becoming infected with other tape worms until the life history of these parasites is better understood. It will be well, however, to keep the chickens housed in the morning until the sun is well up and the ground is drj, for they will thus be less likely to meet with the


Diseases of poultry; their etiology, Diseases of poultry; their etiology, diagnosis, treatment, and prevention diseasesofpoultr00pear Year: 1915 142 Diseases of Poultry Stiles says: ' An extermination of slugs will insure im- munity against Davainea proglottina, but no precise directions can be given to prevent chickens from becoming infected with other tape worms until the life history of these parasites is better understood. It will be well, however, to keep the chickens housed in the morning until the sun is well up and the ground is drj, for they will thus be less likely to meet with the supposable intermediate hosts of other worms.' Round Worms Round worms can be found in the intestine and especially the ceca of almost any fowl. They are much more common than the tape worms. Normally the round worms cause Fig. 22. Worms protruding from a section of the intestine of a fowl. (After Bradshaw.) no serious trouble to fowls. Under certain conditions, how- ever, they may become so numerous as to be a serious menace to the flock. At such times they have a decided effect on the digestion; the irritation often causes diarrhea. When


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