Experimental Physiology
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Quarterly Journal of Experimental Physiology 25.3 pp 267-277
© The Physiological Society 1935
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ON THE RELATION BETWEEN THE SITE OF INJECTION OF ANDROSTERONE AND THE COMB RESPONSE IN THE FOWL

A. W. Greenwood 1 and J. S. S. Blyth 1

1 Institute of Animal Genetics, University of Edinburgh

1. Injections of androsterone directly into the substance of the capon's comb produced a response greater than that elicited by the same dose when injected intramuscularly in the pectoral region.

2. In a preliminary test of the effect of the hormone in intact birds, two females responding to the treatment, showed less increase in comb size than the capons, as recorded in the length plus height measurements, but developed well-marked swellings at the base of the comb, which are considered to be manifestations of a local effect. A normal male showed no reaction to the same treatment, while an incompletely castrated male, with a comb similar in size to those of the females, gave a marked response.

3. The significance of the results is briefly discussed.

Submitted on September 4, 1935






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Copyright © 1935 by the The Physiological Society.