Author:
LEWIS JAMES,MAHMOUD I. Y.,KLICKA JOHN
Abstract
Plasma concentrations of progesterone and oestradiol-17β were determined by radioimmunoassay procedures in the sexually mature female snapping turtle at four different stages of the annual ovarian cycle. The highest level of progesterone in the peripheral plasma was detected during the luteal stage (June), whereas the concentration of oestradiol was highest (280 pg/ml) in May, immediately before ovulation.
Subject
Endocrinology,Endocrinology, Diabetes and Metabolism
Cited by
29 articles.
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1. Gonadotrophic, prolactin, corticosterone, and gonadal hormones levels over 15 months in Giant Amazon River Turtles - Podocnemis expansa (Schweigger, 1812) (Testudines: Podocnemididae), in captive conditions;Brazilian Journal of Biology;2017-05-04
2. Hormones, Brain, and Behavior in Reptiles;Hormones, Brain and Behavior;2017
3. Sexual Dimorphism and Seasonal Variation of Reproductive Hormones in the Pascagoula Map Turtle,Graptemys gibbonsi;Copeia;2015-03
4. Seasonal changes in plasma steroid levels in relation to ovarian steroidogenic ultrastructural features and progesterone receptors in the house gecko, Hemidactylus flaviviridis, in Oman;General and Comparative Endocrinology;2012-05
5. Hormones, Brain, and Behavior in Reptiles;Hormones, Brain and Behavior;2009