Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/1/18 |
Resumo: | In captive common marmoset groups, the reproductive inhibition observed in subordinate female seems to be a result of olfactory, visual and behavioral cues from the dominant female. However, few studies have examined the relationship among adult males living in the same social group. These studies have shown that reproductive failure among peer males seems to be based on hormonal and behavioral mechanisms. New insights on sexual strategies in primates have been shown using fecal steroids, but so far no information is available for common marmoset males. In the present study, we evaluated the influence of light-dark cycle, age and reproductive condition on the profile of fecal androgens in males living in the same family group. Feces were collected from six fathers and six sons for androgen determination during the light phase of the 24-h cycle for eight days randomly distributed over a 4-week period. Androgen levels were determined by enzyme immunoassay technique. Adult sons showed higher androgen levels (166.97 ± 22.95 ng/g) than fathers (80.69 ± 44.38 ng/g) and juveniles (49.06 ± 23.15 ng/g; P < 0.05). No diurnal variation (P > 0.05) in fecal androgen profile was observed in adults or juveniles. No indication of androgen-mediated social competition between fathers and adult sons was demonstrable. These results provide basic information on fecal androgen profile useful to investigate the socioendocrinology of free-ranging common marmoset males and verify that, in contrast to daughters, the reproductive suppression of sons is not based on physiological inhibition of their gonads |
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Castro, D. C.Sousa, Maria Bernardete Cordeiro de2010-08-09T13:58:50Z2010-08-09T13:58:50Z2005Castro, D. C. ; Sousa, M.B.C. . Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups. Brazilian Journal of Medical and Biological Research , Brasil, v. 38, n. 1, p. 65-72, 2005https://repositorio.ufrn.br/jspui/handle/1/18In captive common marmoset groups, the reproductive inhibition observed in subordinate female seems to be a result of olfactory, visual and behavioral cues from the dominant female. However, few studies have examined the relationship among adult males living in the same social group. These studies have shown that reproductive failure among peer males seems to be based on hormonal and behavioral mechanisms. New insights on sexual strategies in primates have been shown using fecal steroids, but so far no information is available for common marmoset males. In the present study, we evaluated the influence of light-dark cycle, age and reproductive condition on the profile of fecal androgens in males living in the same family group. Feces were collected from six fathers and six sons for androgen determination during the light phase of the 24-h cycle for eight days randomly distributed over a 4-week period. Androgen levels were determined by enzyme immunoassay technique. Adult sons showed higher androgen levels (166.97 ± 22.95 ng/g) than fathers (80.69 ± 44.38 ng/g) and juveniles (49.06 ± 23.15 ng/g; P < 0.05). No diurnal variation (P > 0.05) in fecal androgen profile was observed in adults or juveniles. No indication of androgen-mediated social competition between fathers and adult sons was demonstrable. These results provide basic information on fecal androgen profile useful to investigate the socioendocrinology of free-ranging common marmoset males and verify that, in contrast to daughters, the reproductive suppression of sons is not based on physiological inhibition of their gonadsporSaguis comunsAndrógenos fecaisSupressão de reprodução de saguisCommon marmosetsFecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groupsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALFecalAndrogenLevels_Castro_2005.pdfFecalAndrogenLevels_Castro_2005.pdfapplication/pdf519898https://repositorio.ufrn.br/bitstream/1/18/1/FecalAndrogenLevels_Castro_2005.pdfbf55b212e153cb3046d9c1ab25e7bc86MD51CC-LICENSElicense_urllicense_urltext/plain; charset=utf-849https://repositorio.ufrn.br/bitstream/1/18/2/license_urlc0b3e2a72fe5e4b72fa5798bb22cd3a3MD52license_textlicense_texttext/html; charset=utf-820990https://repositorio.ufrn.br/bitstream/1/18/3/license_text7ff64c63f088f3a7c490807bfb1081d3MD53license_rdflicense_rdfapplication/rdf+xml; charset=utf-820464https://repositorio.ufrn.br/bitstream/1/18/4/license_rdfd540d98f4c56c073d1d99228e27d53caMD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.ufrn.br/bitstream/1/18/5/license.txt8a4605be74aa9ea9d79846c1fba20a33MD55TEXT2005Art_MBernardete_Fecal.pdf.txt2005Art_MBernardete_Fecal.pdf.txtExtracted texttext/plain31026https://repositorio.ufrn.br/bitstream/1/18/10/2005Art_MBernardete_Fecal.pdf.txt051020fc0325c3d020967df255602452MD510THUMBNAIL2005Art_MBernardete_Fecal.pdf.jpg2005Art_MBernardete_Fecal.pdf.jpgIM Thumbnailimage/jpeg9566https://repositorio.ufrn.br/bitstream/1/18/11/2005Art_MBernardete_Fecal.pdf.jpg03b21e9e8e5ef8fe5cb9bbcd28f917b1MD5111/182021-11-09 17:05:40.004oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-11-09T20:05:40Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
title |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
spellingShingle |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups Castro, D. C. Saguis comuns Andrógenos fecais Supressão de reprodução de saguis Common marmosets |
title_short |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
title_full |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
title_fullStr |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
title_full_unstemmed |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
title_sort |
Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups |
author |
Castro, D. C. |
author_facet |
Castro, D. C. Sousa, Maria Bernardete Cordeiro de |
author_role |
author |
author2 |
Sousa, Maria Bernardete Cordeiro de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Castro, D. C. Sousa, Maria Bernardete Cordeiro de |
dc.subject.por.fl_str_mv |
Saguis comuns Andrógenos fecais Supressão de reprodução de saguis Common marmosets |
topic |
Saguis comuns Andrógenos fecais Supressão de reprodução de saguis Common marmosets |
description |
In captive common marmoset groups, the reproductive inhibition observed in subordinate female seems to be a result of olfactory, visual and behavioral cues from the dominant female. However, few studies have examined the relationship among adult males living in the same social group. These studies have shown that reproductive failure among peer males seems to be based on hormonal and behavioral mechanisms. New insights on sexual strategies in primates have been shown using fecal steroids, but so far no information is available for common marmoset males. In the present study, we evaluated the influence of light-dark cycle, age and reproductive condition on the profile of fecal androgens in males living in the same family group. Feces were collected from six fathers and six sons for androgen determination during the light phase of the 24-h cycle for eight days randomly distributed over a 4-week period. Androgen levels were determined by enzyme immunoassay technique. Adult sons showed higher androgen levels (166.97 ± 22.95 ng/g) than fathers (80.69 ± 44.38 ng/g) and juveniles (49.06 ± 23.15 ng/g; P < 0.05). No diurnal variation (P > 0.05) in fecal androgen profile was observed in adults or juveniles. No indication of androgen-mediated social competition between fathers and adult sons was demonstrable. These results provide basic information on fecal androgen profile useful to investigate the socioendocrinology of free-ranging common marmoset males and verify that, in contrast to daughters, the reproductive suppression of sons is not based on physiological inhibition of their gonads |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2010-08-09T13:58:50Z |
dc.date.available.fl_str_mv |
2010-08-09T13:58:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Castro, D. C. ; Sousa, M.B.C. . Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups. Brazilian Journal of Medical and Biological Research , Brasil, v. 38, n. 1, p. 65-72, 2005 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/1/18 |
identifier_str_mv |
Castro, D. C. ; Sousa, M.B.C. . Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups. Brazilian Journal of Medical and Biological Research , Brasil, v. 38, n. 1, p. 65-72, 2005 |
url |
https://repositorio.ufrn.br/jspui/handle/1/18 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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