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Immunocytochemical Localization of GnRH Precursor in the Hypothalamus of European Starlings during Sexual Maturationand Photorefractoriness
Author(s) -
Parry Dilys M.,
Goldsmith Arthur R.,
Millar Robert P.,
Glennie Linda M.
Publication year - 1997
Publication title -
journal of neuroendocrinology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.062
H-Index - 116
eISSN - 1365-2826
pISSN - 0953-8194
DOI - 10.1046/j.1365-2826.1997.00575.x
Subject(s) - hypothalamus , medicine , endocrinology , immunocytochemistry , biology
Immunocytochemistry with quantitative image analysis, for both GnRH and its precursor proGnRH‐GAP, was used in male European starlings ( Sturnus vulgaris ) to investigate four stages of a photoperiodically‐induced reproductive cycle. Four different groups of birds were examined: photosensitive but sexually immature, sexually mature, undergoing gonadal regression, and after the completion of regression and fully photorefractory.