HAYATI Journal of Biosciences
Vol. 13 No. 2 (2006): June 2006

Diurnal Patterns of Testosterone and Cortisol Metabolites in Fecal of Javan Gibbons (Hylobates moloch) in Captivity

PUDJI ASTUTI (Unknown)
TUTY LASWARDI YUSUF (Unknown)
ERIC HAYES (Unknown)
HERA MAHESHWARI (Unknown)
LUTHFIRALDA SJAHFIRDI (Unknown)
DONDIN SAJUTHI (Unknown)

Article Info

Publish Date
02 Dec 2009

Abstract

The aims of this research were to determine diurnal patterns of testosterone and cortisol metabolites to predict the testis functional status. In this study, fecal testosterone and cortisol were quantified in 77 samples from three male Hylobates moloch during a course of three months period. These data showed that the highest concentration of fecal testosterone occured at 18.00-06.00 (23.61 ng/g dried feces), then declined gradually. The lowest concentration was in the evening (5.54 ng/g dried feces). Our tests showed that there was a decrease in the mean testosterone concentration from 06.00-10.00 to 10.00-14.00 to 14.00-18.00. For cortisol, the highest concentration occured at 06.00-10.00 (597.84 ng/g dried feces), then decline gradually in the evening (225.73 ng/g dried feces). Key words: Hylobates moloch, feces, testosterone, cortisol, diurnal pattern

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Journal Info
HAYATI Journal of Biosciences
Website

Abbrev

hayati

Publisher

Institut Pertanian Bogor

Subject

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

Description

HAYATI Journal of Biosciences (HAYATI J Biosci) publishes articles and short communication in tropical bioscience fields such as development, biotechnology, biodiversity and environmental issues. HAYATI J Biosci covers wide range of all life forms topics including virus, microbes, fungi, plants, ...