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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
10/08/1999 |
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Data da última atualização: |
28/03/2017 |
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Autoria: |
MELO, M. I. V.; SERENO, J. R. B.; HENRY, M.; CASSALI, G. D. |
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Afiliação: |
UFMG/EV (Belo Horizonte, MG). UFMG/ICB (Belo Horizonte, MG). EMBRAPA Pantanal (Corumba, MS. |
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Título: |
Peripuberal sexual development of pantaneiro horse. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Theriogenology, v.50, p.727-737, 1998. |
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Idioma: |
Inglês |
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Conteúdo: |
Pantaneiro horses are a breed native to flood plains of Brazil, where they thrive with little fuman interference. The aims of this study were to characterize age-associated changes in testicular size, serum testosterone and sexual behavior and to determine age at puberty as well as to evaluate daily sperm production in the Pantaneiro stallion. After weaning the males were kept in bachelor groups away from the females, in a separated area in the natural environment of flood plains. Infantile period ended at approximately 14.4 mo of age. Sexual interst and breeding capability first appeared between the ages of 15.6 to 27.5 mo. The transition from prepuberal to postpuberal histological stage, occurred at approximately 27.8 mo of age. All animals were in the postpuberal period at 38.5 mo of age. Daily sperm production estimated with testicle homogenate, at 38.5 mo of age was low (1.4603 +- 0.48x10 sperm) and serum testosterone levels were similar to adult levels by 27.8 mo. In conclusion the 2 y old Pantaneiro stallions showed full sexual behavior and had adult testosterone levels, but at this age, the stage of development of the seminuiferous epithelium was variable and the efficiency of sperm production was still low. |
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Palavras-Chave: |
Cavalo pantaneiro; Pantaneiro horse; Production. |
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Thesagro: |
Produção; Reprodução. |
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Thesaurus Nal: |
reproduction; testosterone. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01847naa a2200241 a 4500
001 1798443
005 2017-03-28
008 1998 bl --- 0-- u #d
100 1 $aMELO, M. I. V.
245 $aPeripuberal sexual development of pantaneiro horse.
260 $c1998
520 $aPantaneiro horses are a breed native to flood plains of Brazil, where they thrive with little fuman interference. The aims of this study were to characterize age-associated changes in testicular size, serum testosterone and sexual behavior and to determine age at puberty as well as to evaluate daily sperm production in the Pantaneiro stallion. After weaning the males were kept in bachelor groups away from the females, in a separated area in the natural environment of flood plains. Infantile period ended at approximately 14.4 mo of age. Sexual interst and breeding capability first appeared between the ages of 15.6 to 27.5 mo. The transition from prepuberal to postpuberal histological stage, occurred at approximately 27.8 mo of age. All animals were in the postpuberal period at 38.5 mo of age. Daily sperm production estimated with testicle homogenate, at 38.5 mo of age was low (1.4603 +- 0.48x10 sperm) and serum testosterone levels were similar to adult levels by 27.8 mo. In conclusion the 2 y old Pantaneiro stallions showed full sexual behavior and had adult testosterone levels, but at this age, the stage of development of the seminuiferous epithelium was variable and the efficiency of sperm production was still low.
650 $areproduction
650 $atestosterone
650 $aProdução
650 $aReprodução
653 $aCavalo pantaneiro
653 $aPantaneiro horse
653 $aProduction
700 1 $aSERENO, J. R. B.
700 1 $aHENRY, M.
700 1 $aCASSALI, G. D.
773 $tTheriogenology$gv.50, p.727-737, 1998.
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Registro original: |
Embrapa Pantanal (CPAP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
10/02/2010 |
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Data da última atualização: |
10/02/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
PICCIANI, P. H. S.; MEDEIROS, E. S.; PAN, Z. ORTS, W. J.; MATTOSO, L. H. C.; SOARES, B. G. |
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Afiliação: |
LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA. |
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Título: |
Development of conducting polyaniline/poly(lactic acid) nanofibers by electrospinning. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Journal of applied polymer science, New York, v. 112, p. 744-753, 2009. |
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Idioma: |
Inglês |
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Thesaurus NAL: |
nanofibers. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00498naa a2200145 a 4500
001 1657435
005 2010-02-10
008 2009 bl --- 0-- u #d
100 1 $aPICCIANI, P. H. S.; MEDEIROS, E. S.; PAN, Z. ORTS, W. J.
245 $aDevelopment of conducting polyaniline/poly(lactic acid) nanofibers by electrospinning.
260 $c2009
650 $ananofibers
700 1 $aMATTOSO, L. H. C.
700 1 $aSOARES, B. G.
773 $tJournal of applied polymer science, New York$gv. 112, p. 744-753, 2009.
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