Endocrinological evaluation of southern muriquis (Brachyteles arachnoides - E. GEOFFROY, 1806) reproduction in captivity by measurement of fecal steroids metabolites / Avaliação endocrinológica da reprodução de muriquis do sul em cativeiro (Brachyteles arachnoides - E. GEOFFROY, 1806) por meio de dosagem de metabólitos de esteróides fecais

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The reproductive endocrinology of the southern muriqui (Brachyteles. Arachnoids) was evaluated through the dosage of fecal metabolites steroids for 04 adult females and fecal metabolites of testosterone and glucocorticoids for 04 adult males and 01 subadult male. The study was conducted over an eleven month period at two environmental conditions: a) an island of 600 m2, with natural vegetation, at Curitiba Zoo (PPC) and b) a large cage of 15,40X5,85X4,70m at Rio de Janeiro Primatological Centre (CPRJ). It was observed that females had large strogen interindividual variation and fecal progestins: three females did not show ovarian activity over a partial period of the study, while ovarian activity was observed for all sample periods for one female. Despite the detection of low levels of steroids, proceptive behaviour and copulations were observed. The PPC males showed significant levels of glicorticoids and testosteorne when compared to the CPRJ males (p<0.05). The subadult male exhibited the lowest level of testosterone metabolites and those differences were significant when compared to the adult males (p<0.05). For all males, copulations occurred when testosterone levels were highest and peaks of glucorticoids were linked to stressfull situations. This study have shown that the method used was effective for reproductive monitoring as well as for evaluating stressfull situations.

ASSUNTO(S)

metabólitos primates metabolites endocrinologia endocrinology estresse primatas steroids stress esteróides

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