Premium
ON THE RELATION BETWEEN THE SITE OF INJECTION OF ANDROSTERONE AND THE COMB RESPONSE IN THE FOWL
Author(s) -
Greenwood A. W.,
Blyth J. S. S.
Publication year - 1935
Publication title -
quarterly journal of experimental physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0370-2901
DOI - 10.1113/expphysiol.1935.sp000686
Subject(s) - fowl , androsterone , zoology , biology , medicine , endocrinology , anatomy , hormone , ecology , steroid
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.