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[Circadian and circannuel fluctuations of pineal metatonin content in Testudo hermanni G. (Reptilia-Chelonia) under natural conditions of photoperiod and temperature (author's transl)].

作者信息

Vivien-Roels B, Arendt J

出版信息

Ann Endocrinol (Paris). 1979 Jan-Feb;40(1):93-4.

PMID:443751
Abstract

Pineal content of melatonin is measured by RIA. The tortoise, Testudo hermanni, in natural lighting, shows peak night-time melatonin levels during summer (may to september) at the period of greatest activity. During hibernation, melatonin levels are very low and no circadian variation can be detected.

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