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Registros recuperados : 21 | |
2. | | PALHÃO, M. P.; PAGANINI FILHO, W.; VIANA, J. H. M.; GUIMARÃES, R. B.; FIGUEIREDO, A. C. S.; LUDGERO, B. F. A.; FERNANDES, C. A. de C. Acurácia da ultrassonografia e da avaliação comportamental na determinação das características funcionais de estruturas ovarianas císticas. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 10, p.823-827, 2014. Notas Científicas Biblioteca(s): Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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3. | | FERNANDES, C. A. DE C.; PALHÃO, M. P.; RIBEIRO, J. R.; VIANA, J. H. M.; GIOSO, M. M.; FIGUEIREDO, A. C. S.; OBA, E.; COSTA, D. S. Associação entre oxitetraciclina e cloprostenol no tratamento de vacas leiteiras com retenção de placenta. Revista Brasileira de Ciência Veterinária, v. 19, n. 3, p. 178-182, 2012. Biblioteca(s): Embrapa Gado de Leite. |
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4. | | FERNANDES, C. A. C.; OLIVEIRA, E. R.; VASCONCELOS, T. D.; ALVES, B. F. L.; GIOSO, M. M.; VIANA, J. H. M.; OBA, E.; FIGUEIREDO, A. C. S. Bipartição de embriões bovinos em diferentes estádios de desenvolvimento. Acta Scientiae Veterinariae, v. 35, p. s1215, 2007. Supl. 3. Edição dos anais da 21ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Salvador, 2007. Biblioteca(s): Embrapa Gado de Leite. |
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5. | | VIANA, J. H. M.; FIGUEIREDO, A. C. S.; SIQUEIRA, L. G. B. Brazilian embryo industry in context: pitfalls, lessons, and expectations for the future. Animal Reproduction, v. 14, n. 3, p. 476-481, 2017. Edição dos proceedings do 31º Annual Meeting of the Brazilian Embryo Technology Society, 2017, Cabo de Santo Agostinho. Biblioteca(s): Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia. |
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6. | | FERNANDES, C. A. C.; OBA, E.; VIANA, J. H. M.; FIGUEIREDO, A. C. S.; OLIVEIRA, E. R.; VASCONCELOS, T. D.; GIOSO, M. M. Economic evaluation of bovine embryo splitting. Acta Scientiae Veterinariae, v. 34, s506, 2006. Supl. 1. Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006. Biblioteca(s): Embrapa Gado de Leite. |
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7. | | FERNANDES, C. A. C.; RIBEIRO, J. A.; PALHÃO, M. P.; FIGUEIREDO, A. C. S.; VIANA, J. H. M.; COSTA, D. S.; ARASHIRO, E. K. N. Effect of season and weight gain on pregnancy rates of embryo recipients raised under pasture conditions. In: ANNUAL CONFERENCE OF THE INTERNATIONAL EMBRYO TRANSFER SOCIETY, 2013, Hannover. Proceedings... Hannover: [s.n.], 2013. Biblioteca(s): Embrapa Gado de Leite. |
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8. | | VIANA, J. H. M.; VARGAS, M. S. B.; SIQUEIRA, L. G. B.; CAMARGO, L. S. de A.; FIGUEIREDO, A. C. S.; FERNANDES, C. A. C.; PALHÃO, M. P. Efficacy of induction of luteolysis in superovulated cows is dependent on time of prostaglandin F2alpha analog treatment: effects on plasma progesterone and luteinizing hormone profiles. Theriogenology, v. 86, n. 4, p. 934-939, 2016. Biblioteca(s): Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia. |
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9. | | FIGUEIREDO, A. C. S.; FERNANDES, C. A. C.; NERI, H. L. H.; PEREIRA, G. H. S.; PEREIRA, J. R.; VIANA, J. H. M.; VIEIRA, M. R. Efficiency of in vivo embryo production using sorted semen in cattle. Animal Reproduction, v. 15, n. 3, p. 452, Jul./Sept. 2018. Proceedings of the 32nd Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Florianópolis, SC, Brazil, August 16th to 18th, 2018. Abstracts. Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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10. | | FERNANDES, C. A. C.; FIGUEIREDO, A. C. S.; OLIVEIRA, E. R.; VASCONCELOS, T. D.; ALVES, B. F. L.; GIOSO, M. M.; VIANA, J. H. M.; OBA, E. Estrus detection efficiency in embryo recipients synchronized with cloprostenol Acta Scientiae Veterinariae, v. 34, s493, 2006. Supl. 1. Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006. Biblioteca(s): Embrapa Gado de Leite. |
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11. | | FERNANDES, C. A. C.; FIGUEIREDO, A. C. S.; OLIVEIRA, E. R.; VASCONCELOS, T. D.; ALVES, B. F. L.; GIOSO, M. M.; VIANA, J. H. M. Folltropin-V® dose trial on superovulation protocol in european beef cows. Acta Scientiae Veterinariae, v. 34, s514, 2006. Supl. 1. Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006. Biblioteca(s): Embrapa Gado de Leite. |
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12. | | CANELLA FILHO, C. F. C.; FERNANDES, C. A. C.; VIANA, J. H. M.; FIGUEIREDO, A. C. S.; GIOSO, M. M.; LUDGERO, B. F. A.; OLIVEIRA, E. R.; VASCONCELOS, T. D. Intra-uterine treatment for infections in cows. Acta Scientiae Veterinariae, v. 34, s500, 2006. Supl. 1. Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006. Biblioteca(s): Embrapa Gado de Leite. |
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13. | | FERNANDES, C. A. C.; OBA, E.; FIGUEIREDO, A. C. S.; OLIVEIRA, E. R.; ALVES, B. F. L.; VIANA, J. H. M. Perdas embrionárias e fetais em gestações gemelares de receptoras de embriões bovinos. Acta Scientiae Veterinariae, v. 35, p. s1074, 2007. Supl. 3. Edição dos anais da 21ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Salvador, 2007. Biblioteca(s): Embrapa Gado de Leite. |
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15. | | FERNANDES, C. A. de C.; PEREIRA, J. R.; SOUZA, V. O.; FIGUEIREDO, A. C. S. de; VIANA, J. H. M.; SIQUEIRA, L. G. B.; PALHAO, M. P. Timing of early resynchronization protocols affects subsequent pregnancy outcome in dairy cows. Theriogenology, v. 167, p. 61-66, 2021. Biblioteca(s): Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia. |
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16. | | FERNANDES, C. A. C.; FIGUEIREDO, A. C. S.; TORRES, C. A. A.; MIYAUCHI, T. A.; PALHÃO, M. P.; VIANA, J. H. M.; GIMENEZ, M. Transfer of two demi embryos increases pregnancy rate but not the birth rate Animal Reproduction, v. 12, n. 3, 2015. Edição dos proceedings do 29º Annual Meeting of the Brazilian Embryo Technology Society, 2015, Gramado. Biblioteca(s): Embrapa Gado de Leite. |
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17. | | ALVES, B. F. L.; FERNANDES, C. A. C.; GIOSO, M. M.; VIANA, J. H. M.; FIGUEIREDO, A. C. S.; OLIVEIRA, E. R.; VASCONCELOS, T. D. Tratamento de cistos ovarianos com fertirelina associada ao cloprostenol. Acta Scientiae Veterinariae, v. 35, p. s1286, 2007. Supl. 3. Edição dos anais da 21ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Salvador, 2007. Biblioteca(s): Embrapa Gado de Leite. |
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18. | | FERNANDES, C. A. C.; ALVES, B. F. L.; OLIVEIRA, E. R.; FIGUEIREDO, A. C. S.; VIANA, J. H. M.; GIOSO, M. M. Tratamento de infecções uterinas com cloprostenol em vacas ciclando e não ciclando. Acta Scientiae Veterinariae, v. 36, p. s601, 2008. Supl. 2. Edição dos anais da 22ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Guarujá, 2008. Biblioteca(s): Embrapa Gado de Leite. |
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19. | | ALVES, B. F. L.; FERNANDES, C. A. C.; OLIVEIRA, E. R.; FIGUEIREDO, A. C. S.; VASCONCELOS, T. D.; VIANA, J. H. M.; GIOSO, M. M. Tratamento de infecções uterinas em bovinos com cloprostenol. Acta Scientiae Veterinariae, v. 35, p. s1062, 2007. Supl. 3. Edição dos anais da 21ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Salvador, 2007. Biblioteca(s): Embrapa Gado de Leite. |
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20. | | SARTORI, R.; PRATA, A. B.; FIGUEIREDO, A. C. S.; SANCHES, B. V.; PONTES, G. C. S.; VIANA, J. H. M.; PONTES, J. H.; VASCONCELOS, J. L. M.; PEREIRA, M. H. C.; DODE, M. A. N.; MONTEIRO JÚNIOR, P. L. J.; BARUSELLI, P. S. Update and overview on assisted reproductive technologies (ARTs) in Brazil. Animal Reproduction, v. 13, n. 3, p. 300-312, Jul./Sept. 2016. Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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Registros recuperados : 21 | |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
04/06/2014 |
Data da última atualização: |
06/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 4 |
Autoria: |
NEVES, H. H.; CARVALHEIRO, R.; O'BRIEN, A. M.; UTSUNOMIYA, Y. T.; CARMO, A. S. do; SCHENKEL, F. S.; SÖLKNER, J.; MCEWAN, J. C.; VAN TASSELL, C. P.; COLE, J. B.; SILVA, M. V. G. B.; QUEIROZ, S. A.; SONSTEGARD, T. S.; GARCIA, J. F. |
Afiliação: |
Haroldo HR Neves; Roberto Carvalheiro; Ana M Pérez O'Brien; Yuri T Utsunomiya; Adriana S. do Carmo; Flávio S Schenkel; Johann Sölkner; John C McEwan; Curtis P Van Tassell; John B Cole; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; Sandra A Queiroz; Tad S Sonstegard; José Fernando Garcia. |
Título: |
Accuracy of genomic predictions in Bos indicus (Nellore) cattle. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Genetics Selection Evolution, v. 46, article 17, 2014. |
DOI: |
https://doi.org/10.1186/1297-9686-46-17 |
Idioma: |
Inglês |
Conteúdo: |
Background- Nellore cattle play an important role in beef production in tropical systems and there is great interest in determining if genomic selection can contribute to accelerate genetic improvement of production and fertility in this breed. We present the first results of the implementation of genomic prediction in a Bos indicus (Nellore) population. Methods - Influential bulls were genotyped with the Illumina Bovine HD chip in order to assess genomic predictive ability for weight and carcass traits, gestation length, scrotal circumference and two selection indices. 685 samples and 320 238 single nucleotide polymorphisms (SNPs) were used in the analyses. A forward-prediction scheme was adopted to predict the genomic breeding values (DGV). In the training step, the estimated breeding values (EBV) of bulls were deregressed (dEBV) and used as pseudo-phenotypes to estimate marker effects using four methods: genomic BLUP with or without a residual polygenic effect (GBLUP20 and GBLUP0, respectively), a mixture model (Bayes C) and Bayesian LASSO (BLASSO). Empirical accuracies of the resulting genomic predictions were assessed based on the correlation between DGV and dEBV for the testing group. Results - Accuracies of genomic predictions ranged from 0.17 (navel at weaning) to 0.74 (finishing precocity). Across traits, Bayesian regression models (Bayes C and BLASSO) were more accurate than GBLUP. The average empirical accuracies were 0.39 (GBLUP0), 0.40 (GBLUP20) and 0.44 (Bayes C and BLASSO). Bayes C and BLASSO tended to produce deflated predictions (i.e. slope of the regression of dEBV on DGV greater than 1). Further analyses suggested that higher-than-expected accuracies were observed for traits for which EBV means differed significantly between two breeding subgroups that were identified in a principal component analysis based on genomic relationships. Conclusions -Bayesian regression models are of interest for future applications of genomic selection in this population, but further improvements are needed to reduce deflation of their predictions. Recurrent updates of the training population would be required to enable accurate prediction of the genetic merit of young animals. The technical feasibility of applying genomic prediction in a Bos indicus (Nellore) population was demonstrated. Further research is needed to permit cost-effective selection decisions using genomic information. MenosBackground- Nellore cattle play an important role in beef production in tropical systems and there is great interest in determining if genomic selection can contribute to accelerate genetic improvement of production and fertility in this breed. We present the first results of the implementation of genomic prediction in a Bos indicus (Nellore) population. Methods - Influential bulls were genotyped with the Illumina Bovine HD chip in order to assess genomic predictive ability for weight and carcass traits, gestation length, scrotal circumference and two selection indices. 685 samples and 320 238 single nucleotide polymorphisms (SNPs) were used in the analyses. A forward-prediction scheme was adopted to predict the genomic breeding values (DGV). In the training step, the estimated breeding values (EBV) of bulls were deregressed (dEBV) and used as pseudo-phenotypes to estimate marker effects using four methods: genomic BLUP with or without a residual polygenic effect (GBLUP20 and GBLUP0, respectively), a mixture model (Bayes C) and Bayesian LASSO (BLASSO). Empirical accuracies of the resulting genomic predictions were assessed based on the correlation between DGV and dEBV for the testing group. Results - Accuracies of genomic predictions ranged from 0.17 (navel at weaning) to 0.74 (finishing precocity). Across traits, Bayesian regression models (Bayes C and BLASSO) were more accurate than GBLUP. The average empirical accuracies were 0.39 (GBLUP0), 0.40 (GBLUP20) and 0.44 (Bayes ... Mostrar Tudo |
Palavras-Chave: |
Genomic selection; Nellore cattle. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/116427/1/Cnpgl-2014-Genetics-Selection-Evolution-Accuracy-of-genomic.pdf
|
Marc: |
LEADER 03329naa a2200313 a 4500 001 1987574 005 2024-02-06 008 2014 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1186/1297-9686-46-17$2DOI 100 1 $aNEVES, H. H. 245 $aAccuracy of genomic predictions in Bos indicus (Nellore) cattle.$h[electronic resource] 260 $c2014 520 $aBackground- Nellore cattle play an important role in beef production in tropical systems and there is great interest in determining if genomic selection can contribute to accelerate genetic improvement of production and fertility in this breed. We present the first results of the implementation of genomic prediction in a Bos indicus (Nellore) population. Methods - Influential bulls were genotyped with the Illumina Bovine HD chip in order to assess genomic predictive ability for weight and carcass traits, gestation length, scrotal circumference and two selection indices. 685 samples and 320 238 single nucleotide polymorphisms (SNPs) were used in the analyses. A forward-prediction scheme was adopted to predict the genomic breeding values (DGV). In the training step, the estimated breeding values (EBV) of bulls were deregressed (dEBV) and used as pseudo-phenotypes to estimate marker effects using four methods: genomic BLUP with or without a residual polygenic effect (GBLUP20 and GBLUP0, respectively), a mixture model (Bayes C) and Bayesian LASSO (BLASSO). Empirical accuracies of the resulting genomic predictions were assessed based on the correlation between DGV and dEBV for the testing group. Results - Accuracies of genomic predictions ranged from 0.17 (navel at weaning) to 0.74 (finishing precocity). Across traits, Bayesian regression models (Bayes C and BLASSO) were more accurate than GBLUP. The average empirical accuracies were 0.39 (GBLUP0), 0.40 (GBLUP20) and 0.44 (Bayes C and BLASSO). Bayes C and BLASSO tended to produce deflated predictions (i.e. slope of the regression of dEBV on DGV greater than 1). Further analyses suggested that higher-than-expected accuracies were observed for traits for which EBV means differed significantly between two breeding subgroups that were identified in a principal component analysis based on genomic relationships. Conclusions -Bayesian regression models are of interest for future applications of genomic selection in this population, but further improvements are needed to reduce deflation of their predictions. Recurrent updates of the training population would be required to enable accurate prediction of the genetic merit of young animals. The technical feasibility of applying genomic prediction in a Bos indicus (Nellore) population was demonstrated. Further research is needed to permit cost-effective selection decisions using genomic information. 653 $aGenomic selection 653 $aNellore cattle 700 1 $aCARVALHEIRO, R. 700 1 $aO'BRIEN, A. M. 700 1 $aUTSUNOMIYA, Y. T. 700 1 $aCARMO, A. S. do 700 1 $aSCHENKEL, F. S. 700 1 $aSÖLKNER, J. 700 1 $aMCEWAN, J. C. 700 1 $aVAN TASSELL, C. P. 700 1 $aCOLE, J. B. 700 1 $aSILVA, M. V. G. B. 700 1 $aQUEIROZ, S. A. 700 1 $aSONSTEGARD, T. S. 700 1 $aGARCIA, J. F. 773 $tGenetics Selection Evolution$gv. 46, article 17, 2014.
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Embrapa Gado de Leite (CNPGL) |
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