. Poultry production. Poultry. 262 POULTRY PRODUCTION water drank by fowls is gotten rid of by means of the breath- ing apparatus than is the case with other farm animals. The elaborateness of the apparatus itself would also suggest this probability. Besides a well-developed pair of lungs, there are connected with them four pairs of air sacs of considerable proportions placed on either side of the body, and ranging in position from the neck to the abdomen, with a Fig. 138. A farm poultry-house: no light, no ventilation. (Courtesy of Purdue Experiment Station.) single median sac located in the
. Poultry production. Poultry. 262 POULTRY PRODUCTION water drank by fowls is gotten rid of by means of the breath- ing apparatus than is the case with other farm animals. The elaborateness of the apparatus itself would also suggest this probability. Besides a well-developed pair of lungs, there are connected with them four pairs of air sacs of considerable proportions placed on either side of the body, and ranging in position from the neck to the abdomen, with a Fig. 138. A farm poultry-house: no light, no ventilation. (Courtesy of Purdue Experiment Station.) single median sac located in the cavity of the thorax. Besides opening into the lungs, these sacs communicate directly with the cavities of most of the bones of the body, with the exception of those of the forearm and hand of the wing and those the hock-joint of the leg. This elaborate system for gathering moisture from every part of the body trunk is working at a distinct disadvantage when the air which must be depended upon to take up the moisture vapor is already laden with 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 Lippincott, William Adams, 1882-1931. Philadelphia, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectpoultry
