Characterization of Cycling in a Hoolock Gibbon (Hoolock leuconedys)

Autor:	Alexandra M Haley, Erin B Guntrum, Susan W. Margulis
Rok vydání:	2021
Předmět:	Animal science biology Reproductive hormones Sexual maturity Animal Science and Zoology Hoolock gibbon Estrone-3-glucuronide biology.organism_classification Cycling Cycle length Ecology Evolution Behavior and Systematics Feces
Zdroj:	Folia Primatologica. 92:235-240
ISSN:	1421-9980 0015-5713
DOI:	10.1159/000519077
Popis:	Here we examine the patterns of reproductive hormones (progesterone and estrone-3 glucuronide, or E1G) in one female hoolock gibbon (Hoolock leuconedys) housed at the Gibbon Conservation Center, throughout the maturation period. Three hundred forty-five fecal samples were collected from the individual over a 5-year period (2012–2017) beginning at the age of 6 years and ending at the age of 11. The average measured progesterone concentration increased from 19.572 ± 1.706 ng/g feces in 2012 to 107.922 ± 12.094 ng/g feces in 2016/17 (p < 0.00001). The average measured estrogen value increased from 1.234 ± 0.063 ng/g feces in 2012 to 2.783 ± 0.274 ng/g feces in 2016/17 (p < 0.00001). This was accompanied by the emergence of a clear hormonal cycling pattern in the 2016/17 samples that was absent in all earlier samples. These data are consistent with the known sexual maturation period for other gibbon species, which typically occurs between the ages of 6 and 8 but shows some variation. To our knowledge, this is the first hormonal study and first data on cycle length for a hoolock gibbon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b8be11096a52e5f3e5b9866e51629f38 https://doi.org/10.1159/000519077 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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