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Photoperiodic time measurement during the termination of photorefractoriness in the starling (Sturnus vulgaris L.)

✍ Scribed by Günther Schleussner; Eberhard Gwinner

Book ID
113159047
Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
673 KB
Volume
75
Category
Article
ISSN
0016-6480

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✍ Wieselthier, Arthur S. ;Van Tienhoven, A. 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 584 KB

Thyroidectomy of Starlings prior to exposure to long photoperiods (17L:7D) resulted in a failure of testes to regress after a n initial size increase. Thyroidectomy after four weeks of such exposure resulted i n testicular regression followed by a second period of size increase. Testicular size was