. The diseases of animals; a book of brief and popular advice on the care and the common ailments of farm animals. Veterinary medicine; Domestic animals. 344 The Diseases of Animals. Fig. 53. Head and section of tape-worm. deposits eggs which pass out with the excrement. When these eggs are taken into another animal's system, either in the food or the water, they hatch into a minute, migratory, larval form, that bores its way through the tissues until it reaches some suitable place, often in the muscle, where it becomes encysted. These cysts are small, rounded, yellowish masses, containing the
. The diseases of animals; a book of brief and popular advice on the care and the common ailments of farm animals. Veterinary medicine; Domestic animals. 344 The Diseases of Animals. Fig. 53. Head and section of tape-worm. deposits eggs which pass out with the excrement. When these eggs are taken into another animal's system, either in the food or the water, they hatch into a minute, migratory, larval form, that bores its way through the tissues until it reaches some suitable place, often in the muscle, where it becomes encysted. These cysts are small, rounded, yellowish masses, containing the worm-like structure that is often visible to the naked eye. These cysts, when observed in the muscular tissue of pork, chicken, duck,etc., are commonly called "measles," and the meat is said to be "measly" (page 351). In fish, the encysted forms of worms found in the mus- cular tissue are commonly called "grubs," or "; The cycle of the round-worms found in the intes- tines is as follows : The egg deposited by the adult passes out with the excrement, and gets into the food or water which may be eaten by other animals In some instances, it is necessary that the egg be taken in by a certain animal, in which it undergoes a larval stage. In some worms, the young are brought forth alive. The life-history of the fringed tape-worm {Taenia marginata), which is frequently found infesting the livers and small intestines of sheep in the middle west, is unknown. When an animal is badly infested with intestinal worms, some of the following symptoms are usually shown: The coat is likely to be rough and staring,. 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 Mayo, Nelson Slater, 1866-. New York, Macmillan; London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdomesti, bookyear1917
