. Diseases of poultry; their etiology, diagnosis, treatment, and prevention. Poultry. External Parasites 221 the birds most likely to be infected are those with a deficient supply of oil in the skin. The conditions which favor its. -''l.^r'^TV^:^ 'V. Fig. 44. — Photograph of the six-legged larva of Knemidocoptes {Derma- torydes) mutans. (After Haiduk.) spread in a flock are dry, barren runs, especially on alkaline soils or in yards filled with ashes or cinders. Foul roosting places also favor the spread of the disease. The disease is. Please note that these images are extracted from scanned pa
. Diseases of poultry; their etiology, diagnosis, treatment, and prevention. Poultry. External Parasites 221 the birds most likely to be infected are those with a deficient supply of oil in the skin. The conditions which favor its. -''l.^r'^TV^:^ 'V. Fig. 44. — Photograph of the six-legged larva of Knemidocoptes {Derma- torydes) mutans. (After Haiduk.) spread in a flock are dry, barren runs, especially on alkaline soils or in yards filled with ashes or cinders. Foul roosting places also favor the spread of the disease. The disease is. 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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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpoultry, bookyear1915
