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DC Field | Value | Language |
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dc.contributor.author | Nogueira, Guilherme de Paula | - |
dc.date.accessioned | 2014-05-20T15:11:33Z | - |
dc.date.accessioned | 2016-10-25T17:45:51Z | - |
dc.date.available | 2014-05-20T15:11:33Z | - |
dc.date.available | 2016-10-25T17:45:51Z | - |
dc.date.issued | 2004-06-01 | - |
dc.identifier | http://dx.doi.org/10.1590/S0100-879X2004000600018 | - |
dc.identifier.citation | Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 37, n. 6, p. 913-922, 2004. | - |
dc.identifier.issn | 0100-879X | - |
dc.identifier.uri | http://hdl.handle.net/11449/28076 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/28076 | - |
dc.description.abstract | Twelve female ponies were examined daily for 30 days and classified as ovulating (OV; N = 6; 197 ± 6 kg) or prepubertal (PP; N = 6; 196 ± 9 kg). Follicles were detected by ultrasound and gonadotropins quantified by radioimmunoassay. The mean diameter of the largest follicles was significantly larger in OV (38 ± 1 mm) than in PP (26 ± 2 mm) but there was no difference between groups in the size of the second largest follicle. There were more small follicles (<24 mm) in the PP than in the OV group, but PP fillies had a smaller number of follicles >29 mm than the OV fillies. Follicle-stimulating hormone (FSH) levels did not differ between groups but PP fillies had lower luteinizing hormone (LH) peak (8 ± 1 ng/ml) and basal (4 ± 0.5 ng/ml) levels, lower peak magnitude (2 ± 0.2 ng/ml) and period average (5 ± 0.6 ng/ml) than OV fillies (32 ± 4.5, 8 ± 1.2, 17.1 ± 6, and 15 ± 2.3 ng/ml, respectively). The PP group, in contrast to the OV group, showed no relationship between FSH surge and follicle wave emergence. We conclude that an LH concentration higher than 8 ng/ml is needed for follicle growth to a preovulatory size. Wave emergence and FSH secretion seem to be independent events, probably due to an inhibitory neural system in these PP animals. PP fillies may provide a physiological model for the study of follicle wave emergence which apparently does not depend on gonadotropin levels. | en |
dc.format.extent | 913-922 | - |
dc.language.iso | eng | - |
dc.publisher | Associação Brasileira de Divulgação Científica (ABRADIC) | - |
dc.source | SciELO | - |
dc.subject | Follicles | en |
dc.subject | FSH | en |
dc.subject | LH and prepubertal fillies | en |
dc.title | Follicle profile and plasma gonadotropin concentration in pubertal female ponies | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | Universidade Estadual Paulista Faculdade de Medicina Veterinária Produção e Saúde Animal | - |
dc.description.affiliationUnesp | Universidade Estadual Paulista Faculdade de Medicina Veterinária Produção e Saúde Animal | - |
dc.identifier.doi | 10.1590/S0100-879X2004000600018 | - |
dc.identifier.scielo | S0100-879X2004000600018 | - |
dc.rights.accessRights | Acesso aberto | - |
dc.identifier.file | S0100-879X2004000600018.pdf | - |
dc.relation.ispartof | Brazilian Journal of Medical and Biological Research | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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