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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/01/2020 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, C. S.; SERAPIÃO, R. V.; CAMARGO, A. J. DOS R.; FREITAS, C. de; IGUMA, L. T.; CARVALHO, B. C. de; CAMARGO, L. S. de A.; OLIVEIRA, L. Z.; VERNEQUE, R. da S. |
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Afiliação: |
CLARA SLADE OLIVEIRA, CNPGL; Raquel Varella Serapião; Agostinho Jorge dos Reis Camargo; CELIO DE FREITAS, CNPGL; Lilian Tamy Iguma; BRUNO CAMPOS DE CARVALHO, CNPGL; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL; Letícia Zoccolaro Oliveira; RUI DA SILVA VERNEQUE, CNPGL. |
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Título: |
Oocyte origin affects the in vitro embryo production and development of Holstein (Bos taurus taurus) - Gyr (Bos taurus indicus) reciprocal cross embryos. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Animal Reproduction Science, v. 209, article 106165, 2019. |
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DOI: |
https://doi.org/10.1016/j.anireprosci.2019.106165 |
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Idioma: |
Inglês |
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Conteúdo: |
A reciprocal crossbred embryo production approach was used to assess effects of maternal breed on embryo development in tropical conditions (average temperature 22.0 °C and 77.9% relative humidity). Oocytes were recovered by ovum pick-up (OPU) from Gyr and Holstein donors (n = 90 Holstein and 83 Gyr OPUs). Female F1 embryos were produced by fertilization with sperm bearing X-chromosomes from Holstein semen (n = 615 Gyr oocytes) or Gyr semen (n = 255 Holstein oocytes). Blastocysts were transferred to recipients 168 h post-insemination (h.p.i.) (n= 70?144) and there were assessments of pregnancies until birth. Oocyte number per OPU (Gyr 10.0 ± 0.7 compared with Holstein 6.3 ± 0.4) and percentage viable oocytes (Gyr 78.8 ± 1.9% compared with Holstein 71.2 ± 2.2%) were less for Holstein donor animals. There was a 2.8 fold fewer total number of F1 blastocysts when Holstein donors were used (Gyr: 260, Holstein: 91). Pregnancy assessment during the different stages of gestation indicated the percentage pregnancy was less when embryos were produced from Holstein oocytes (Gyr and Holstein respectively: early pregnancy, 47.9% compared with 38.6%; mid-pregnancy, 44.4% compared with 31.4%; late pregnancy, 41.0% compared with 22.9%). Pregnancy length was also affected by maternal breed (Gyr: 280.8 ± 0.6, Holstein: 286.3 ± 0.7). It is concluded that in a tropical environment the maternal breed affects crossbred embryo development with pregnancy rates during the latter stages of gestation being greater when Gyr oocytes are used for production of embryos. MenosA reciprocal crossbred embryo production approach was used to assess effects of maternal breed on embryo development in tropical conditions (average temperature 22.0 °C and 77.9% relative humidity). Oocytes were recovered by ovum pick-up (OPU) from Gyr and Holstein donors (n = 90 Holstein and 83 Gyr OPUs). Female F1 embryos were produced by fertilization with sperm bearing X-chromosomes from Holstein semen (n = 615 Gyr oocytes) or Gyr semen (n = 255 Holstein oocytes). Blastocysts were transferred to recipients 168 h post-insemination (h.p.i.) (n= 70?144) and there were assessments of pregnancies until birth. Oocyte number per OPU (Gyr 10.0 ± 0.7 compared with Holstein 6.3 ± 0.4) and percentage viable oocytes (Gyr 78.8 ± 1.9% compared with Holstein 71.2 ± 2.2%) were less for Holstein donor animals. There was a 2.8 fold fewer total number of F1 blastocysts when Holstein donors were used (Gyr: 260, Holstein: 91). Pregnancy assessment during the different stages of gestation indicated the percentage pregnancy was less when embryos were produced from Holstein oocytes (Gyr and Holstein respectively: early pregnancy, 47.9% compared with 38.6%; mid-pregnancy, 44.4% compared with 31.4%; late pregnancy, 41.0% compared with 22.9%). Pregnancy length was also affected by maternal breed (Gyr: 280.8 ± 0.6, Holstein: 286.3 ± 0.7). It is concluded that in a tropical environment the maternal breed affects crossbred embryo development with pregnancy rates during the latter stages of gestation ... Mostrar Tudo |
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Palavras-Chave: |
Maternal breed; Oocyte quality. |
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Thesaurus Nal: |
Crossbreds; Gir (cattle breed); Girolando. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02523naa a2200289 a 4500
001 2118697
005 2024-02-06
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.anireprosci.2019.106165$2DOI
100 1 $aOLIVEIRA, C. S.
245 $aOocyte origin affects the in vitro embryo production and development of Holstein (Bos taurus taurus) - Gyr (Bos taurus indicus) reciprocal cross embryos.$h[electronic resource]
260 $c2019
520 $aA reciprocal crossbred embryo production approach was used to assess effects of maternal breed on embryo development in tropical conditions (average temperature 22.0 °C and 77.9% relative humidity). Oocytes were recovered by ovum pick-up (OPU) from Gyr and Holstein donors (n = 90 Holstein and 83 Gyr OPUs). Female F1 embryos were produced by fertilization with sperm bearing X-chromosomes from Holstein semen (n = 615 Gyr oocytes) or Gyr semen (n = 255 Holstein oocytes). Blastocysts were transferred to recipients 168 h post-insemination (h.p.i.) (n= 70?144) and there were assessments of pregnancies until birth. Oocyte number per OPU (Gyr 10.0 ± 0.7 compared with Holstein 6.3 ± 0.4) and percentage viable oocytes (Gyr 78.8 ± 1.9% compared with Holstein 71.2 ± 2.2%) were less for Holstein donor animals. There was a 2.8 fold fewer total number of F1 blastocysts when Holstein donors were used (Gyr: 260, Holstein: 91). Pregnancy assessment during the different stages of gestation indicated the percentage pregnancy was less when embryos were produced from Holstein oocytes (Gyr and Holstein respectively: early pregnancy, 47.9% compared with 38.6%; mid-pregnancy, 44.4% compared with 31.4%; late pregnancy, 41.0% compared with 22.9%). Pregnancy length was also affected by maternal breed (Gyr: 280.8 ± 0.6, Holstein: 286.3 ± 0.7). It is concluded that in a tropical environment the maternal breed affects crossbred embryo development with pregnancy rates during the latter stages of gestation being greater when Gyr oocytes are used for production of embryos.
650 $aCrossbreds
650 $aGir (cattle breed)
650 $aGirolando
653 $aMaternal breed
653 $aOocyte quality
700 1 $aSERAPIÃO, R. V.
700 1 $aCAMARGO, A. J. DOS R.
700 1 $aFREITAS, C. de
700 1 $aIGUMA, L. T.
700 1 $aCARVALHO, B. C. de
700 1 $aCAMARGO, L. S. de A.
700 1 $aOLIVEIRA, L. Z.
700 1 $aVERNEQUE, R. da S.
773 $tAnimal Reproduction Science$gv. 209, article 106165, 2019.
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Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/11/2020 |
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Data da última atualização: |
17/11/2020 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
LOUREÇON, T. V.; MAGALHAES, W. L. E.; BOLZON de MUNIZ, G. I.; VIRTANEN, T.; JÄÄSKELÄINEN, A.-S.; LIITIA, T.; ALAKURTTI, S.; HUGHES, M.; TAMMINEN, T. |
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Afiliação: |
Tainise V. Lourençon, Aalto University; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Graciela Inês Bolzòn de Muñiz, UFPR; T. VIRTANEN, VTT TechnicaL Research Centre of Finland; A.-S. JÄÄSKELÄINEN, VTT TechnicaL Research Centre of Finland; T. LIITIA, VTT TechnicaL Research Centre of Finland; S. ALAKURTTI, VTT TechnicaL Research Centre of Finland; M. HUGHES, Aalto University; T. TAMMINEN, VTT TechnicaL Research Centre of Finland. |
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Título: |
Hardwood kraft lignin fractions as phenol substitute in phenol-form aldehyde resins. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: EUROPEAN WORKSHOP ON LIGNOCELLLULOSICS AND PULP, 15., 2018, Aveiro. Proceedings for posters presentations. [S.l.: s.n.], 2018. p. 399-402. |
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Idioma: |
Inglês |
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Conteúdo: |
The subs titution of phenol by lignin in phenol-formaldehyde (PF) resins is one of most promis ing end uses for lignin valorization. lignin from grasses and softwood has been the focus of the studies in this field as they present higher number of theoretical reactive sites for the resin synthesis. Hpeerrfeoinrm waen ecexa imn iPnFe rtehsei ncso,m sypnotshiteisoinze adn dby c hseumbsitciatul rteinagc tpivhietyn oolf ihna 5rd0w woto%d. lTighnei nr efrsauclttiso onfs ,t hanisd s tthuediyr give a clear demonstration that the lower frequency of reactive sites present in hardwood lignin did not influence negatively on the resin synthesis, bringing new perspectives to this technical lignin. |
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Palavras-Chave: |
Kraft; Phenolic resins; Reactive sites; Resina fenólica; Technical lignin. |
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Thesagro: |
Lignina. |
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Thesaurus NAL: |
Fractionation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01614nam a2200289 a 4500
001 2126680
005 2020-11-17
008 2018 bl uuuu u00u1 u #d
100 1 $aLOUREÇON, T. V.
245 $aHardwood kraft lignin fractions as phenol substitute in phenol-form aldehyde resins.$h[electronic resource]
260 $aIn: EUROPEAN WORKSHOP ON LIGNOCELLLULOSICS AND PULP, 15., 2018, Aveiro. Proceedings for posters presentations. [S.l.: s.n.], 2018. p. 399-402.$c2018
520 $aThe subs titution of phenol by lignin in phenol-formaldehyde (PF) resins is one of most promis ing end uses for lignin valorization. lignin from grasses and softwood has been the focus of the studies in this field as they present higher number of theoretical reactive sites for the resin synthesis. Hpeerrfeoinrm waen ecexa imn iPnFe rtehsei ncso,m sypnotshiteisoinze adn dby c hseumbsitciatul rteinagc tpivhietyn oolf ihna 5rd0w woto%d. lTighnei nr efrsauclttiso onfs ,t hanisd s tthuediyr give a clear demonstration that the lower frequency of reactive sites present in hardwood lignin did not influence negatively on the resin synthesis, bringing new perspectives to this technical lignin.
650 $aFractionation
650 $aLignina
653 $aKraft
653 $aPhenolic resins
653 $aReactive sites
653 $aResina fenólica
653 $aTechnical lignin
700 1 $aMAGALHAES, W. L. E.
700 1 $aBOLZON de MUNIZ, G. I.
700 1 $aVIRTANEN, T.
700 1 $aJÄÄSKELÄINEN, A.-S.
700 1 $aLIITIA, T.
700 1 $aALAKURTTI, S.
700 1 $aHUGHES, M.
700 1 $aTAMMINEN, T.
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