PHOTOPERIODICALLY INDUCED TESTICULAR RECRUDESCENCE IN THE TRANSEQUATORIAL MIGRANTDOLICHONYXRELATIVE TO NATURAL PHOTOPERIODS
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چکیده
منابع مشابه
Spontaneous testicular recrudescence of Syrian hamsters: role of stimulatory photoperiods.
The gonads of hamsters maintained in short photoperiods first undergo regression and then spontaneous recrudescence. The latter is indicative of refractoriness of the neuroendocrine axis to short day lengths. We tested the hypothesis that the absence of long-day stimulation contributes to the development of refractoriness to short photoperiods. Male Syrian hamsters were maintained for 26 weeks ...
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In an elaborate sequence of experiments, Bissonnette (1930, 1931, 1937) demonstrated a positive correlation between testicular growth in European Starlings (Sturnus vulgaris) and seasonally increasing photoperiods occurring during the winter and spring months in north temperate zone latitudes. These results eventually led to the classification of the starling as a primary photoperiodic species ...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1969
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1540098