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Diurnal variations in serum testosterone concentrations of captive adult male chacma baboons ( Papio ursinus )
Author(s) -
Bielert C.,
HowardTripp M. E.,
van der Walt L. A.
Publication year - 1981
Publication title -
american journal of primatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 81
eISSN - 1098-2345
pISSN - 0275-2565
DOI - 10.1002/ajp.1350010407
Subject(s) - adult male , testosterone (patch) , biology , captivity , endocrinology , zoology , medicine
Captive adult male chacma baboons ( Papio ursinus ) housed with natural lighting exposure and blood sampled at 3‐hr intervals showed significant diurnal variations in serum testosterone concentrations. Low mean concentrations were found at 0800 hr approximately 1 hr after sunrise and mean concentrations were their highest at 2000 hr approximately 1 ¼ hr after sunset.
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