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Registro Completo |
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Biblioteca(s): |
Embrapa Acre; Embrapa Arroz e Feijão; Embrapa Caprinos e Ovinos; Embrapa Cerrados; Embrapa Gado de Leite; Embrapa Meio-Norte; Embrapa Pecuária Sudeste; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia; Embrapa Roraima; Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. MenosEmbrapa Acre; Embrapa Arroz e Feijão; Embrapa Caprinos e Ovinos; Embrapa Cerrados; Embrapa Gado de Leite; Embrapa Meio-Norte; Embrapa Pecuária Sudeste; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia... Mostrar Todas |
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Data corrente: |
20/08/2004 |
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Data da última atualização: |
09/11/2021 |
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Tipo da produção científica: |
Autoria/Organização/Edição de Livros |
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Autoria: |
MARTINS, C. F.; DODE, M. A. N.; SILVA, A. E. D. F. (ed.). |
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Afiliação: |
CARLOS FREDERICO MARTINS, CPAC; MARGOT ALVES NUNES DODE, Cenargen; ANTÔNIO EMÍDIO DIAS FELICIANO SILVA, Centro Paulista de Estudos Agropecuários. |
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Título: |
Atlas de morfologia espermática bovina. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Brasília, DF: Embrapa, 2016. |
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Páginas: |
98 p. |
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Descrição Física: |
il. |
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Idioma: |
Português |
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Notas: |
Planaltina, DF: Embrapa Cerrados, 2016. |
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Conteúdo: |
Capítulo 1 - Morfofisiologia espermática, aspectos da criopreservação de sêmen bovino e importância da avaliação laboratorial; Capítulo 2 - Avaliação espermática laboratorial; Capítulo 3 - Atlas microfotográfico. |
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Palavras-Chave: |
Espermatozóides; Fisiologia espermática; Líquido seminal; Sêmen bovino. |
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Thesagro: |
Bovino; Esperma; Espermatozoide; Sêmen. |
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Categoria do assunto: |
--
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/147291/1/atlas-morfologia1412.pdf
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Marc: |
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008 2016 bl uuuu 00u1 u #d
100 1 $aMARTINS, C. F.
245 $aAtlas de morfologia espermática bovina.
260 $aBrasília, DF: Embrapa$c2016
300 $a98 p.$cil.
500 $aPlanaltina, DF: Embrapa Cerrados, 2016.
520 $aCapítulo 1 - Morfofisiologia espermática, aspectos da criopreservação de sêmen bovino e importância da avaliação laboratorial; Capítulo 2 - Avaliação espermática laboratorial; Capítulo 3 - Atlas microfotográfico.
650 $aBovino
650 $aEsperma
650 $aEspermatozoide
650 $aSêmen
653 $aEspermatozóides
653 $aFisiologia espermática
653 $aLíquido seminal
653 $aSêmen bovino
700 1 $aDODE, M. A. N.
700 1 $aSILVA, A. E. D. F.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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Data corrente: |
21/05/2010 |
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Data da última atualização: |
15/02/2024 |
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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: |
VIANA, J. H. M.; PALHÃO, M. P.; SIQUEIRA, L. G. B.; FONSECA, J. F. da; CAMARGO, L. S. de A. |
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Afiliação: |
JOAO HENRIQUE MOREIRA VIANA, CNPGL; M. P. PALHÃO, UFV; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; JEFERSON FERREIRA DA FONSECA, CNPC; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL. |
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Título: |
Ovarian follicular dynamics, follicle deviation, and oocyte yield in Gyr breed (Bos indicus) cows undergoing repeated ovum pick-up. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Theriogenology, v. 73, n. 7, p. 966-972, 2010. |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2009.11.025 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate ovarian follicular dynamics during intervals between successive ovum pick-up (OPU) and determine its effects on the number and quality of recovered cumulus-oocyte complexes (COCs) in Zebu cows (Bos indicus). Pluriparous nonlactating Gyr cows (Bos indicus; n = 10) underwent four consecutive OPU sessions at 96-h intervals. The dynamics of ovarian follicular growth between OPU sessions was monitored by twice-daily ultrasonographic examinations. A single dominant follicle (DF) or two codominant (CDF) follicles (>9 mm) were present in 63.3% (19 of 30) of intervals studied, with follicle deviation beginning when the future dominant follicle (F1) achieved a diameter of 6.2 0.3 mm. The phenomenon of codominance was observed in four (13.3%) of the inter-OPU intervals. The remaining intervals (36.6%, 11 of 30) were characterized by a greater follicular population, lower rate of follicular growth, and a smaller diameter F1 (P < 0.0001). There was a tendency (P = 0.08) toward an increase in the number of recovered COCs when dominant follicles were not present (NDF). The quality of COCs was not affected by the presence of a single dominant follicle, but codominant follicles resulted in recovery of a lower proportion of viable embryos (40.0%, 62.1%, and 63.6%; P < 0.05) and higher proportions of degenerate COCs (56.0%, 30.3%, and 28.6%; P < 0.05) for CDF, NDF, and DF respectively.We concluded that, in Zebu cows, (a) repeated follicle spirations altered ovarian follicular dynamics, perhaps by increasing follicular growth rate; (b) follicular dominance could be established in cows undergoing twice-a-week OPU; and (c) the presence of a dominant follicle during short inter-OPU intervals may not affect COC quality, except when a codominant follicle was present. # 2010 Elsevier Inc. All rights reserved. MenosThe objective of this study was to evaluate ovarian follicular dynamics during intervals between successive ovum pick-up (OPU) and determine its effects on the number and quality of recovered cumulus-oocyte complexes (COCs) in Zebu cows (Bos indicus). Pluriparous nonlactating Gyr cows (Bos indicus; n = 10) underwent four consecutive OPU sessions at 96-h intervals. The dynamics of ovarian follicular growth between OPU sessions was monitored by twice-daily ultrasonographic examinations. A single dominant follicle (DF) or two codominant (CDF) follicles (>9 mm) were present in 63.3% (19 of 30) of intervals studied, with follicle deviation beginning when the future dominant follicle (F1) achieved a diameter of 6.2 0.3 mm. The phenomenon of codominance was observed in four (13.3%) of the inter-OPU intervals. The remaining intervals (36.6%, 11 of 30) were characterized by a greater follicular population, lower rate of follicular growth, and a smaller diameter F1 (P < 0.0001). There was a tendency (P = 0.08) toward an increase in the number of recovered COCs when dominant follicles were not present (NDF). The quality of COCs was not affected by the presence of a single dominant follicle, but codominant follicles resulted in recovery of a lower proportion of viable embryos (40.0%, 62.1%, and 63.6%; P < 0.05) and higher proportions of degenerate COCs (56.0%, 30.3%, and 28.6%; P < 0.05) for CDF, NDF, and DF respectively.We concluded that, in Zebu cows, (a) repeated follicle spirations ... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Dinâmica folicular; Folículo; Follicle ablation; OPU; Ovarian follicle; Ovarian follicular development; Zebu cattle. |
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Thesagro: |
Ciclo estral; Endocrinologia; Gado; Reprodução animal. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02867naa a2200325 a 4500
001 1883063
005 2024-02-15
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2009.11.025$2DOI
100 1 $aVIANA, J. H. M.
245 $aOvarian follicular dynamics, follicle deviation, and oocyte yield in Gyr breed (Bos indicus) cows undergoing repeated ovum pick-up.$h[electronic resource]
260 $c2010
520 $aThe objective of this study was to evaluate ovarian follicular dynamics during intervals between successive ovum pick-up (OPU) and determine its effects on the number and quality of recovered cumulus-oocyte complexes (COCs) in Zebu cows (Bos indicus). Pluriparous nonlactating Gyr cows (Bos indicus; n = 10) underwent four consecutive OPU sessions at 96-h intervals. The dynamics of ovarian follicular growth between OPU sessions was monitored by twice-daily ultrasonographic examinations. A single dominant follicle (DF) or two codominant (CDF) follicles (>9 mm) were present in 63.3% (19 of 30) of intervals studied, with follicle deviation beginning when the future dominant follicle (F1) achieved a diameter of 6.2 0.3 mm. The phenomenon of codominance was observed in four (13.3%) of the inter-OPU intervals. The remaining intervals (36.6%, 11 of 30) were characterized by a greater follicular population, lower rate of follicular growth, and a smaller diameter F1 (P < 0.0001). There was a tendency (P = 0.08) toward an increase in the number of recovered COCs when dominant follicles were not present (NDF). The quality of COCs was not affected by the presence of a single dominant follicle, but codominant follicles resulted in recovery of a lower proportion of viable embryos (40.0%, 62.1%, and 63.6%; P < 0.05) and higher proportions of degenerate COCs (56.0%, 30.3%, and 28.6%; P < 0.05) for CDF, NDF, and DF respectively.We concluded that, in Zebu cows, (a) repeated follicle spirations altered ovarian follicular dynamics, perhaps by increasing follicular growth rate; (b) follicular dominance could be established in cows undergoing twice-a-week OPU; and (c) the presence of a dominant follicle during short inter-OPU intervals may not affect COC quality, except when a codominant follicle was present. # 2010 Elsevier Inc. All rights reserved.
650 $aCiclo estral
650 $aEndocrinologia
650 $aGado
650 $aReprodução animal
653 $aBrasil
653 $aDinâmica folicular
653 $aFolículo
653 $aFollicle ablation
653 $aOPU
653 $aOvarian follicle
653 $aOvarian follicular development
653 $aZebu cattle
700 1 $aPALHÃO, M. P.
700 1 $aSIQUEIRA, L. G. B.
700 1 $aFONSECA, J. F. da
700 1 $aCAMARGO, L. S. de A.
773 $tTheriogenology$gv. 73, n. 7, p. 966-972, 2010.
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