Document Detail

Hormonal changes related to paternal and alloparental care in common marmosets (Callithrix jacchus).
MedLine Citation:
PMID:  16126204     Owner:  NLM     Status:  MEDLINE    
The physiological mechanisms of parental and alloparental care in cooperatively breeding nonhuman primate species such as the common marmoset (Callithrix jacchus) are poorly known. In this study, we examined prolactin and cortisol plasma levels of fathers and older offspring of both sexes, with and without previous experience in infant carrying, around parturition and during infant carrying. Blood samples were collected from fathers and older offspring and prolactin and cortisol were measured by RIA and EIA, respectively. Prolactin levels of both caretakers were not influenced by infant's birth, previous experience or proximity to parturition. However, prolactin levels increased in both caretakers while in physical contact with infants and also with the number of infants being carried in older offspring. These findings suggest that increased prolactin seems to be mainly due to physical effort rather than a physiological trigger of paternal and alloparental care in common marmosets. Cortisol levels were higher for experienced fathers shortly before parturition which could act to reinforce affiliative bonds between breeding males and females at this time or in the ability of males to detect the proximity of the parturition or both.
Maria Teresa da Silva Mota; Celso Rodrigues Franci; Maria Bernardete Cordeiro de Sousa
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-08-26
Journal Detail:
Title:  Hormones and behavior     Volume:  49     ISSN:  0018-506X     ISO Abbreviation:  Horm Behav     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-02-20     Completed Date:  2006-05-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0217764     Medline TA:  Horm Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  293-302     Citation Subset:  IM    
Departamento de Fisiologia, Centro de Biociências, UFRN, Campus Universitário, Natal, Brazil.
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MeSH Terms
Callithrix / blood*,  psychology
Cooperative Behavior
Hydrocortisone / blood*
Maternal Behavior / physiology*
Paternal Behavior*
Practice (Psychology)
Prolactin / blood*
Reg. No./Substance:
50-23-7/Hydrocortisone; 9002-62-4/Prolactin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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