. Diseases of poultry; their etiology, diagnosis, treatment, and prevention. Poultry. 158 Diseases of Poultry When the inflammation reaches the spaces or sacs beneath the eyes it causes the formation of a secretion very similar to that of the nose, and as this becomes thick it collects, dis- tends the walls of these spaces, and produces a warm and painful swelling, which is seen just below the eyes and may reach the size of a hickory nut. This swelling presses with much force on the eyeball, which is displaced and more or. Ym. 'SO. ââ Showing appearance of a hen a day before death from roup. (
. Diseases of poultry; their etiology, diagnosis, treatment, and prevention. Poultry. 158 Diseases of Poultry When the inflammation reaches the spaces or sacs beneath the eyes it causes the formation of a secretion very similar to that of the nose, and as this becomes thick it collects, dis- tends the walls of these spaces, and produces a warm and painful swelling, which is seen just below the eyes and may reach the size of a hickory nut. This swelling presses with much force on the eyeball, which is displaced and more or. Ym. 'SO. ââ Showing appearance of a hen a day before death from roup. (After Harrison and Streit.) less deformed; and in extreme cases even the bones of the head may give way before it. The closure of the eyes prevents the badly affected birds from finding food ; the accumulation of mucus in the nostrils completely obstructs these passages, so that the beak must be kept open in order to breathe; the obstruction of the windpipe and the smaller air tubes causes loud breathing sounds and difficult respiration. In the severe and advanced cases the birds a som- nolent condition, unable to see or to eat; their strength is rapidly exhausted, and many of them die within a week or ten days. A part of the affected indi-. 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 Pearl, Raymond, 1879-1940; Surface, Frank M. (Frank Macy), 1882- joint author; Curtis, Maynie R. (Maynie Rose), b. 1880, joint author. New York, The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpoultry, bookyear1915
