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Seasonal response of the pituitary and testes to gonadotropin-releasing hormone in the black bear (Ursus americanus)

โœ Scribed by Horan, K.T; Nelson, R.A; Palmer, S.S; Bahr, J.M


Book ID
121926990
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
764 KB
Volume
106
Category
Article
ISSN
0300-9629

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Male black bears undergo seasonal changes in testicular activity. The testes are fully functional from May through July, regress from July through December, and recrudesce from January until May. The mechanisms responsible for the initiation of testicular recrudescence in the bear are unknown. The o