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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com rosangela.lacerda@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
10/07/2017 |
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Data da última atualização: |
27/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREZ, B. C.; BALIEIRO, J. C. C.; VENTURA, R. V.; BRUNELI, F. A. T.; PEIXOTO, M. G. C. D. |
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Afiliação: |
B. C. PEREZ; J. C. C. BALIEIRO; R. V. VENTURA; FRANK ANGELO TOMITA BRUNELI, CNPGL; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL. |
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Título: |
Inbreeding effects on in vitro embryo production traits in Guzerá cattle. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Animal, 2017. |
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Páginas: |
8 p. |
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DOI: |
10.1017/S1751731117000854 |
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Idioma: |
Inglês |
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Conteúdo: |
Inbreeding has been associated with the impairment of reproductive performance in many cattle breeds. Although the usage of reproductive biotechnologies has been increasing in bovine populations, not much attention has been given to the impact of inbreeding over cow?s performance on artificial reproduction. The objective of this study was to estimate the impact of inbreeding on in vitro embryo production in a Guzerá breed population. The inbreeding coefficient (F), calculated as half of the co-ancestry of the individual?s parents, was used as an estimate of inbreeding. The inbreeding coefficients of the donor, sire (used on in vitro fertilization) and of the embryos were included, separately, in the proposed models either as classificatory or continuous variables (linear and quadratic effects). The percentage of non-inbred individuals (or embryos) and mean F of donors, embryos and sires were 29.38%; 35.76%; 42.86% and 1.98±2.68; 1.32±3.13; 2.08±2.79, respectively. Two different models were considered, one for oocyte production traits and other for embryo production traits. The increase of F of the donor significantly (P<0.05) impaired the number of viable oocytes (N OV), number of grade I oocytes (N GI) and number of cleaved embryos (N CLV). Moreover, the donor?s F influenced the percentage of grade I oocytes (P GI), percentage of viable embryos (P EMB) and percentage of cleaved embryos that turned into embryos (P CXE). No significant (P>0.05) effects were observed for the sire (father of the embryos) inbreeding coefficient over the traits analysed. Embryo?s F influenced (P<0.05) the number of viable embryos (N EMB), percentage of viable embryos (P EMB) and percentage of cleaved embryos that turn into embryos (P CXE). Results suggested that an increase in the inbreeding coefficient might impair the embryos ability to survive through challenges imposed by the in vitro environment. Submitting highly inbred Guzerá female donors to in vitro embryo production may, in the long-term, have negative implications on the number of embryos obtained per cow and increase the relative costs of the improvement programmes based on this technology. High levels of inbreeding should be avoided when selecting Guzerá female donors and planning in vitro fertilization mating. MenosInbreeding has been associated with the impairment of reproductive performance in many cattle breeds. Although the usage of reproductive biotechnologies has been increasing in bovine populations, not much attention has been given to the impact of inbreeding over cow?s performance on artificial reproduction. The objective of this study was to estimate the impact of inbreeding on in vitro embryo production in a Guzerá breed population. The inbreeding coefficient (F), calculated as half of the co-ancestry of the individual?s parents, was used as an estimate of inbreeding. The inbreeding coefficients of the donor, sire (used on in vitro fertilization) and of the embryos were included, separately, in the proposed models either as classificatory or continuous variables (linear and quadratic effects). The percentage of non-inbred individuals (or embryos) and mean F of donors, embryos and sires were 29.38%; 35.76%; 42.86% and 1.98±2.68; 1.32±3.13; 2.08±2.79, respectively. Two different models were considered, one for oocyte production traits and other for embryo production traits. The increase of F of the donor significantly (P<0.05) impaired the number of viable oocytes (N OV), number of grade I oocytes (N GI) and number of cleaved embryos (N CLV). Moreover, the donor?s F influenced the percentage of grade I oocytes (P GI), percentage of viable embryos (P EMB) and percentage of cleaved embryos that turned into embryos (P CXE). No significant (P>0.05) effects were observed for the s... Mostrar Tudo |
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Palavras-Chave: |
Bovine artificial reproduction; Ovum pick-up; Zebu cattle. |
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Thesaurus Nal: |
in vitro fertilization; inbreeding depression. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03023naa a2200253 a 4500
001 2072429
005 2023-01-27
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1017/S1751731117000854$2DOI
100 1 $aPEREZ, B. C.
245 $aInbreeding effects on in vitro embryo production traits in Guzerá cattle.$h[electronic resource]
260 $c2017
300 $a8 p.
520 $aInbreeding has been associated with the impairment of reproductive performance in many cattle breeds. Although the usage of reproductive biotechnologies has been increasing in bovine populations, not much attention has been given to the impact of inbreeding over cow?s performance on artificial reproduction. The objective of this study was to estimate the impact of inbreeding on in vitro embryo production in a Guzerá breed population. The inbreeding coefficient (F), calculated as half of the co-ancestry of the individual?s parents, was used as an estimate of inbreeding. The inbreeding coefficients of the donor, sire (used on in vitro fertilization) and of the embryos were included, separately, in the proposed models either as classificatory or continuous variables (linear and quadratic effects). The percentage of non-inbred individuals (or embryos) and mean F of donors, embryos and sires were 29.38%; 35.76%; 42.86% and 1.98±2.68; 1.32±3.13; 2.08±2.79, respectively. Two different models were considered, one for oocyte production traits and other for embryo production traits. The increase of F of the donor significantly (P<0.05) impaired the number of viable oocytes (N OV), number of grade I oocytes (N GI) and number of cleaved embryos (N CLV). Moreover, the donor?s F influenced the percentage of grade I oocytes (P GI), percentage of viable embryos (P EMB) and percentage of cleaved embryos that turned into embryos (P CXE). No significant (P>0.05) effects were observed for the sire (father of the embryos) inbreeding coefficient over the traits analysed. Embryo?s F influenced (P<0.05) the number of viable embryos (N EMB), percentage of viable embryos (P EMB) and percentage of cleaved embryos that turn into embryos (P CXE). Results suggested that an increase in the inbreeding coefficient might impair the embryos ability to survive through challenges imposed by the in vitro environment. Submitting highly inbred Guzerá female donors to in vitro embryo production may, in the long-term, have negative implications on the number of embryos obtained per cow and increase the relative costs of the improvement programmes based on this technology. High levels of inbreeding should be avoided when selecting Guzerá female donors and planning in vitro fertilization mating.
650 $ain vitro fertilization
650 $ainbreeding depression
653 $aBovine artificial reproduction
653 $aOvum pick-up
653 $aZebu cattle
700 1 $aBALIEIRO, J. C. C.
700 1 $aVENTURA, R. V.
700 1 $aBRUNELI, F. A. T.
700 1 $aPEIXOTO, M. G. C. D.
773 $tAnimal, 2017.
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Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 6 | |
| 1. |  | PATRÍCIO, M. A. O.; CAMARAO, A. P.; RODRIGUES FILHO, J. A. Composição botânica da dieta consumida por bovinos em pastagens de quicuio-da-amazônia (Brachiaria humidicola) e braquiarão (Brachiaria brizantha), com e sem queima. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA UFRA, 2.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL (AVALIAÇÃO-2004), 8., 2005, Belém, PA. Ciência e tecnologia com inclusão social: anais. Belém, PA: UFRA: Embrapa Amazônia Oriental, 2005. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | PATRICIO, M. A. O.; CAMARAO, A. P.; RODRIGUES FILHO, J. A.; DUTRA, S.; MENDONÇA, C. L. G. de. Composição botânica da dieta consumida por bovinos em pastagens de quicuio-da-amazônia (Brachiaria humidicola) e braquiarão (Brachiaria brizantha), consorciada com leguminosas, com e sem queima (segunda fase experimental). In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA UFRA, 2.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL (AVALIAÇÃO-2004), 8., 2005, Belém, PA. Ciência e tecnologia com inclusão social: anais. Belém, PA: UFRA: Embrapa Amazônia Oriental, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | DOGNANI, R.; PIERRE, E.; SILVA, M. do C. P.; PATRÍCIO, M. A. C.; COSTA, S. C. da; PRADO, J. R. do; LISBÔA, J. A. N. Epidemiologia descritiva da raiva dos herbívoros notificados no estado do Paraná entre 1977 e 2012. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 36, n. 12, p. 1145-1154, dez. 2016.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | CASSOLI, C. S. da S.; JORGE, E. C.; PATRÍCIO, M.; ALVES, H. J.; ALMEIDA, E. A. de; LEDUR, M. C.; COUTINHO, L. L. ESTs and putative line-specific (broiler and layer) SNPs identified in genes expressed in Gallus gallus pituitary and hypothalamus. Genetics and Molecular Biology, v.30, n.4, p.1077-1081, 2007. Projeto n. 01.02.10.210-10.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 6. | | SILVA, L. F. P.; JORGE, E. C.; ZAROS, L. G.; PATRICIO, M.; LEITE, S. C.; REGITANO, L. C. de A.; OLIVEIRA, M. C. de S.; SILVEIRA, A. C.; FURLAN, L. R.; COUTINHO, L. H. Annotation of Bos indicus functional genome. In: PLANT AND ANIMAL GENOMES CONFERENCE, 12., 2004, San Diego. Abstracts... San Diego: Scherego International, 2004.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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