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| Registros recuperados : 244 | |
| 143. |  | SIVIERO, A.; RONCATTO, G.; LESSA, L. S.; SCHOTT, B.; SOARES FILHO, W. dos S. Mancha areolada dos citros causada por Thanatephorus cucumeris no Acre. Tropical Plant Pathology, Brasília, DF, v. 34, ago. 2009. Suplemento. Edição dos Resumos do XLII Congresso Brasileiro de Fitopatologia, Rio de Janeiro, ago. 2009. Suplemento. Resumo 544.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 144. | | SIVIERO, A.; ROWEDER, C.; MACEDO, P. E. F. de; THOMPSON, R. M.; OLIVEIRA, L. C. de. Mancha foliar e desfolha causada por Cylindrocladium spp. em genótipos de eucalipto no Acre, Amazônia. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 49., 2016, Maceió. Anais eletrônicos... Maceió: SBF: Ufal: Ceca, 2016. 1 p.| Biblioteca(s): Embrapa Acre. |
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| 145. | | SIVIERO, A.; ROWEDER, C.; MACEDO, P. E. F. de; GOMES, N. S. B.; FURTADO, E. L. Manchas foliares em plantios de eucalipto no Acre, Amazônia / Leaf spots in Eucalyptus plantations in Acre, Amazon. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 48.; CONGRESSO BRASILEIRO DE PATOLOGIA PÓS COLHEITA, 2., 2015, São Pedro. Fitopatologia de precisão - fronteiras da ciência: anais. São Pedro, SP: SBF, 2015. 1 p. 1 CD-ROM.| Biblioteca(s): Embrapa Acre. |
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| 147. | | MOREIRA, G. T. S.; SIVIERO, A.; MACEDO, P. E. F. de. Levantamento de doenças fúngicas em frutos de cacau e cupuaçu no Acre. In: SEMINÁRIO DA EMBRAPA ACRE DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO, 3., 2020, Rio Branco, AC. Ciência e tecnologia na sociedade digital (edição on-line): anais. Rio Branco, AC: Embrapa Acre, 2021. p. 89-93. Banner. (Embrapa Acre. Eventos técnicos & científicos, 3). Editores: Virgínia de Souza Álvares, Fabiano Marçal Estanislau.| Biblioteca(s): Embrapa Acre. |
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| 151. | | SOUSA, G. A.; IMADA, K. S.; PINHO, U. M. F. de; MING, L. C.; SIVIERO, A. Reserva Extrativista Chico Mendes, Acre, Brasil: relato de experiência sobre hábitos e segurança alimentar nos seringais Sibéria e Albrácia. Ethnoscientia, v. 8, n. 1, p. 90-101, 2023.| Biblioteca(s): Embrapa Acre. |
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| 152. | | RONCATTO, G.; ASSIS, G. M. L. de; OLIVEIRA, T. K. de; SIVIERO, A.; LESSA, L. S. Seleção e avaliação de espécies e variedades copa/porta-enxertos de maracujazeiros para as condições do Acre. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 20.; ANNUAL MEETING OF THE INTERAMERICAN SOCIETY FOR TROPICAL HORTICULTURE, 54., 2008, Vitória. Frutas para todos : estratégias, tecnologias e visão sustentável. Vitória: INCAPER: Sociedade Brasileira de Fruticultura, 2008. 6 p. 1 DVD.| Biblioteca(s): Embrapa Acre. |
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| 157. | | SIVIERO, A.; CUNHA, E. T.; MOURA, G. de M.; THUNG, M. Reação de cultivares de mandioca a Phytophthora drechsleri, em condições naturais de infecção. Fitopatologia Brasileira, Brasília, DF, v. 21, p. 384, ago. 1996. Suplemento. R 298. Edição dos Resumos do XXIX Congresso Brasileiro de Fitopatologia.| Biblioteca(s): Embrapa Acre. |
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| 158. | | SIVIERO, A.; DELUNARDO, T. A.; HAVERROTH, M.; LESSA, L. S.; RAIMUNDO, C. F. E.; PARDINAS, O. B. Amplification of Manihot sp. genetics variability in Amazon througt the use of cassava ethnovarieties. In: CONGRESSO INTERNACIONAL DE ETNOBIOLOGIA, 11., 2008, Cusco, Peru. Sesión de posters... Cusco: International Society of Ethnobiology, 2008. 1 p.| Biblioteca(s): Embrapa Acre. |
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| 159. | | BENTO, L. V. de O.; BARROS, C.; SANTOS, R. C. dos; SIVIERO, A.; HAVERROTH, M.; ROMAN, A. L. C. Agrobiodiversidade dos quintais urbanos de Rio Branco, AC. In: CONGRESSO NORTE NORDESTE DE PESQUISA E INOVAÇÃO, 7., 2012, Palmas. Ciência, tecnologia e inovação: ações sustentáveis para o desenvolvimento regional: anais. Palmas: Instituto Federal de Educação, Ciência e Tecnologia do Tocantins, 2012. 8 p.| Biblioteca(s): Embrapa Acre. |
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| Registros recuperados : 244 | |
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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 Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
18/05/2020 |
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Data da última atualização: |
10/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
VIZONA, R. G.; PEREZ, B. da C.; PEIXOTO, M. G. C. D.; VIANA, J. H. M.; VENTURA, R. V.; VERCESI FILHO, A. E.; BALIEIRO, J. C. de C. |
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Afiliação: |
RAFAEL GUIMARÃES VIZONA, USP; BRUNO DA COSTA PEREZ, USP; MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; JOAO HENRIQUE MOREIRA VIANA, Cenargen; RICARDO VIEIRA VENTURA, USP; ANÍBAL EUGENIO VERCESI FILHO, CAPTA BOVINOS DE LEITE; JULIO CESAR DE CARVALHO BALIEIRO, USP. |
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Título: |
Genetic analysis of in-vitro embryo production traits in Dairy Gir cattle. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Theriogenology, v. 148, p. 149-161, 2020. |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2020.02.014 |
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Idioma: |
Inglês |
|
Conteúdo: |
The potential of dams as oocyte donors can be a selection criterion for animal breeding programs, but also an involuntary driver of the process. In both cases, it is important to determine genetic components influencing the outcome of in vitro embryo production (IVEP). The objective of the present study was to perform a detailed genetic analysis for in vitro embryo production traits in Dairy Gir cows. A dataset containing 11,450 records of ovum pick-up (OPU) and in vitro fertilization (IVF) procedures from 2684 Dairy Gir donors was evaluated. Analyzed traits were number (NOV) and percentage (POV) of viable oocytes; number (NGI) and percentage (PGI) of grade I oocytes; number (NEMB) and percentage (PEMB) of viable embryos. All analyzes were performed using animal models by a Bayesian framework. Heritability estimates varied from 0.16 to 0.32 for count traits and from 0.01 to 0.06 for percentage traits. The proportion of the total variation represented by the additive genetic effect of sire (semen used in IVF) for NEMB and PEMB was 7% and 5% respectively. Associations between estimated breeding values from progeny tested bulls for IVEP traits, milk production, age at first calving and conformation traits were mainly low or close to zero. Results indicate that selection for IVEP traits is possible in Dairy Gir cattle and would not impair genetic progress for traits already considered as selection criteria. The NOV seems to be a promising target trait. However, a selection index could help to avoid the use of sires with negative genetic merit for percentage traits, minimizing possible deterioration in the long term. MenosThe potential of dams as oocyte donors can be a selection criterion for animal breeding programs, but also an involuntary driver of the process. In both cases, it is important to determine genetic components influencing the outcome of in vitro embryo production (IVEP). The objective of the present study was to perform a detailed genetic analysis for in vitro embryo production traits in Dairy Gir cows. A dataset containing 11,450 records of ovum pick-up (OPU) and in vitro fertilization (IVF) procedures from 2684 Dairy Gir donors was evaluated. Analyzed traits were number (NOV) and percentage (POV) of viable oocytes; number (NGI) and percentage (PGI) of grade I oocytes; number (NEMB) and percentage (PEMB) of viable embryos. All analyzes were performed using animal models by a Bayesian framework. Heritability estimates varied from 0.16 to 0.32 for count traits and from 0.01 to 0.06 for percentage traits. The proportion of the total variation represented by the additive genetic effect of sire (semen used in IVF) for NEMB and PEMB was 7% and 5% respectively. Associations between estimated breeding values from progeny tested bulls for IVEP traits, milk production, age at first calving and conformation traits were mainly low or close to zero. Results indicate that selection for IVEP traits is possible in Dairy Gir cattle and would not impair genetic progress for traits already considered as selection criteria. The NOV seems to be a promising target trait. However, a selection index... Mostrar Tudo |
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Palavras-Chave: |
Bayesian inference; Fertility; Genetic parameter; Inferência bayesiana; Ovum pick-up; Zebu cattle. |
|
Thesagro: |
Biotecnologia; Bovino; Fertilidade; Gado Zebu; Parâmetro Genético; Reprodução Animal. |
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Thesaurus NAL: |
Biotechnology. |
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Categoria do assunto: |
--
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 02682naa a2200361 a 4500
001 2133328
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008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2020.02.014$2DOI
100 1 $aVIZONA, R. G.
245 $aGenetic analysis of in-vitro embryo production traits in Dairy Gir cattle.$h[electronic resource]
260 $c2020
520 $aThe potential of dams as oocyte donors can be a selection criterion for animal breeding programs, but also an involuntary driver of the process. In both cases, it is important to determine genetic components influencing the outcome of in vitro embryo production (IVEP). The objective of the present study was to perform a detailed genetic analysis for in vitro embryo production traits in Dairy Gir cows. A dataset containing 11,450 records of ovum pick-up (OPU) and in vitro fertilization (IVF) procedures from 2684 Dairy Gir donors was evaluated. Analyzed traits were number (NOV) and percentage (POV) of viable oocytes; number (NGI) and percentage (PGI) of grade I oocytes; number (NEMB) and percentage (PEMB) of viable embryos. All analyzes were performed using animal models by a Bayesian framework. Heritability estimates varied from 0.16 to 0.32 for count traits and from 0.01 to 0.06 for percentage traits. The proportion of the total variation represented by the additive genetic effect of sire (semen used in IVF) for NEMB and PEMB was 7% and 5% respectively. Associations between estimated breeding values from progeny tested bulls for IVEP traits, milk production, age at first calving and conformation traits were mainly low or close to zero. Results indicate that selection for IVEP traits is possible in Dairy Gir cattle and would not impair genetic progress for traits already considered as selection criteria. The NOV seems to be a promising target trait. However, a selection index could help to avoid the use of sires with negative genetic merit for percentage traits, minimizing possible deterioration in the long term.
650 $aBiotechnology
650 $aBiotecnologia
650 $aBovino
650 $aFertilidade
650 $aGado Zebu
650 $aParâmetro Genético
650 $aReprodução Animal
653 $aBayesian inference
653 $aFertility
653 $aGenetic parameter
653 $aInferência bayesiana
653 $aOvum pick-up
653 $aZebu cattle
700 1 $aPEREZ, B. da C.
700 1 $aPEIXOTO, M. G. C. D.
700 1 $aVIANA, J. H. M.
700 1 $aVENTURA, R. V.
700 1 $aVERCESI FILHO, A. E.
700 1 $aBALIEIRO, J. C. de C.
773 $tTheriogenology$gv. 148, p. 149-161, 2020.
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