. The diseases of poultry. 38 DISEASES or cold, to draughts of cold air, and to sudden and extreme changes of tcinperature. This disease may, also, re- sult from the iuhalalion of irritating vapors, dust, and other foreign substances. A careful discrimination should be made between bronchitis arising from such causes and that due to contagious catarrh (roup), tuber - culosis, gape worms, and the aspergillus fungus. Symptoms.â The birds are some- what dull, with loss of appetite, ac- celerated breathing and cough. On listening to the respiration a blow- ing or whistling sound may be he
. The diseases of poultry. 38 DISEASES or cold, to draughts of cold air, and to sudden and extreme changes of tcinperature. This disease may, also, re- sult from the iuhalalion of irritating vapors, dust, and other foreign substances. A careful discrimination should be made between bronchitis arising from such causes and that due to contagious catarrh (roup), tuber - culosis, gape worms, and the aspergillus fungus. Symptoms.â The birds are some- what dull, with loss of appetite, ac- celerated breathing and cough. On listening to the respiration a blow- ing or whistling sound may be heard in the air tubes, in the early stages of the disease, caused by the air being drawn over the dry and thick - ened membrane; later, a rattling oi bubbling sound is heard caused by air passing through accumulations of mucus. In the majority of cases the sjmiptoms are not serious, and, under favorable conditions, they soon disappear. Occasionally, the . . , Fitr. 3. âRifTlit lunsi malady mcreases in intensity, the of a troose; «, prinLiry , , . bronchus; (''/'. openintrs I)lumage becomes rough, the wings throutrh which commu- . , , , . nication is established droop, the breathing is labored and wiui the air sacs; re, ,.â , , , â â , r .1 secoiidarv bronchi. difficult, the bird frequently opens its beak in order to obtain sufficient air, it is sleepy, torpid and exhausted. In such severe forms of the disease a large proportion of the affected birds die. Treatment.â The first indication in simple bron- chitis is to place the affected birds in a comfortable, drj^ and reasonably warm place, where they will not be subjected to draughts of air, but where the ventilation is good. Give soft and cooling food, such as stale bread,. 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 Salmon, D. E. Washington, D.
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