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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
13/12/2018 |
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Data da última atualização: |
13/12/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
BRUNES, L. C.; MAGNABOSCO, C. de U.; BALDI, F. S.; COSTA, M. F. O. e; QUEIROZ, L. C. R. de; LOBO, R. B.; GUIMARAES, N. C.; LOPES, F. B. |
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Afiliação: |
LUDMILLA COSTA BRUNES; CLAUDIO DE ULHOA MAGNABOSCO, CPAC; FERNANDO SEBASTIAN BALDI; MARCOS FERNANDO OLIVEIRA E COSTA, CNPAF; LUÍS CÂNDIDO RIBEIRO DE QUEIROZ; RAYSILDO BARBOSA LÔBO; NAYANNY CORRÊA GUIMARÃES; FERNANDO BRITO LOPES. |
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Título: |
Estimates of genetic parameters for carcass and reproductive traits in Nelore cattle. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais eletrônicos. Goiânia: Sociedade Brasileira de Zootecnia, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
The search for a more efficient beef cattle production system has led to the use of considerable number of traits as selection criteria. As such, the success of breeding programs relies on accurate estimates of genetic parameters of economic important traits. Thereby, the aim of this study was to estimate the genetic parameters for rib eye area (REA), backfat thickness (BF), rump fat thickness (RFT), days open (DO) and calving interval (CI) measured on 4,100 Nelore cattle. The data set is Vera Cruz Ranch, a cattle ranch that participates in the Brazilian National Association of Breeders and Researchers (ANCP). Heritabilities and correlations were estimated using univariate and bivariate linear mixed model. The model included contemporary groups (year and season of birth, sex and management group), cow age at calving (in classes and as linear and quadratic covariate) as fixed effects, and genetic and residual components as random effects. The estimates of heritability for REA (0.38), BF (0.34), RFT (0.34), DO (0.18), and CI (0.21) indicate that they could be improved by direct selection. Rib eye area shows moderate correlation (0.36 and 0.38) with BF and RFT. The backfat thickness measured in the rib and the rump showed a high genetic correlation with each other (0.81). REA presented a correlation of -0.09 and -0.14 with CI and OD, respectively. Similarly, the genetic correlations between CI, DO and BF (-0.11 and -0.20); and CI, DO and RFT (-0.10 and -0.16) were negative. Although the genetic correlation between carcass and reproductive efciency traits is low there are still genes that affect both traits as such the genetic selection for one might decrease the other. On the other hand, the correlation between CI and DO was of high magnitude (0.43), confirming the simultaneous influence of a group of genes on both traits. Genetic selection for carcass and reproductive traits efficiency traits is feasible, however, it is necessary to include both groups as a selection criterion. This is because, genetic selection for carcass will present low response in reproductive efficiency characteristics and vice versa. MenosThe search for a more efficient beef cattle production system has led to the use of considerable number of traits as selection criteria. As such, the success of breeding programs relies on accurate estimates of genetic parameters of economic important traits. Thereby, the aim of this study was to estimate the genetic parameters for rib eye area (REA), backfat thickness (BF), rump fat thickness (RFT), days open (DO) and calving interval (CI) measured on 4,100 Nelore cattle. The data set is Vera Cruz Ranch, a cattle ranch that participates in the Brazilian National Association of Breeders and Researchers (ANCP). Heritabilities and correlations were estimated using univariate and bivariate linear mixed model. The model included contemporary groups (year and season of birth, sex and management group), cow age at calving (in classes and as linear and quadratic covariate) as fixed effects, and genetic and residual components as random effects. The estimates of heritability for REA (0.38), BF (0.34), RFT (0.34), DO (0.18), and CI (0.21) indicate that they could be improved by direct selection. Rib eye area shows moderate correlation (0.36 and 0.38) with BF and RFT. The backfat thickness measured in the rib and the rump showed a high genetic correlation with each other (0.81). REA presented a correlation of -0.09 and -0.14 with CI and OD, respectively. Similarly, the genetic correlations between CI, DO and BF (-0.11 and -0.20); and CI, DO and RFT (-0.10 and -0.16) were negative. Alt... Mostrar Tudo |
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Thesagro: |
Carcaça; Gado Nelore; Parâmetro Genético; Reprodução Animal; Reprodutor. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188389/1/Carcaca-e-eficiencia-reprodutiva-ingles-24-04.pdf
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Marc: |
LEADER 03095nam a2200253 a 4500
001 2101495
005 2018-12-13
008 2018 bl uuuu u00u1 u #d
100 1 $aBRUNES, L. C.
245 $aEstimates of genetic parameters for carcass and reproductive traits in Nelore cattle.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais eletrônicos. Goiânia: Sociedade Brasileira de Zootecnia$c2018
520 $aThe search for a more efficient beef cattle production system has led to the use of considerable number of traits as selection criteria. As such, the success of breeding programs relies on accurate estimates of genetic parameters of economic important traits. Thereby, the aim of this study was to estimate the genetic parameters for rib eye area (REA), backfat thickness (BF), rump fat thickness (RFT), days open (DO) and calving interval (CI) measured on 4,100 Nelore cattle. The data set is Vera Cruz Ranch, a cattle ranch that participates in the Brazilian National Association of Breeders and Researchers (ANCP). Heritabilities and correlations were estimated using univariate and bivariate linear mixed model. The model included contemporary groups (year and season of birth, sex and management group), cow age at calving (in classes and as linear and quadratic covariate) as fixed effects, and genetic and residual components as random effects. The estimates of heritability for REA (0.38), BF (0.34), RFT (0.34), DO (0.18), and CI (0.21) indicate that they could be improved by direct selection. Rib eye area shows moderate correlation (0.36 and 0.38) with BF and RFT. The backfat thickness measured in the rib and the rump showed a high genetic correlation with each other (0.81). REA presented a correlation of -0.09 and -0.14 with CI and OD, respectively. Similarly, the genetic correlations between CI, DO and BF (-0.11 and -0.20); and CI, DO and RFT (-0.10 and -0.16) were negative. Although the genetic correlation between carcass and reproductive efciency traits is low there are still genes that affect both traits as such the genetic selection for one might decrease the other. On the other hand, the correlation between CI and DO was of high magnitude (0.43), confirming the simultaneous influence of a group of genes on both traits. Genetic selection for carcass and reproductive traits efficiency traits is feasible, however, it is necessary to include both groups as a selection criterion. This is because, genetic selection for carcass will present low response in reproductive efficiency characteristics and vice versa.
650 $aCarcaça
650 $aGado Nelore
650 $aParâmetro Genético
650 $aReprodução Animal
650 $aReprodutor
700 1 $aMAGNABOSCO, C. de U.
700 1 $aBALDI, F. S.
700 1 $aCOSTA, M. F. O. e
700 1 $aQUEIROZ, L. C. R. de
700 1 $aLOBO, R. B.
700 1 $aGUIMARAES, N. C.
700 1 $aLOPES, F. B.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
27/11/2017 |
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Data da última atualização: |
27/11/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LEMES, B. M.; RISTOW, N.; BET, C. D.; OLIVEIRA, C. S. de; BENINCA, C.; LAZZAROTTO, M.; SCHNITZLER, E. |
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Afiliação: |
Bárbara Mikulis Lemes, UEPG; Nadine Ristow, UEPG; Camila Delinski Bet, UEPG; Cristina Soltovski de Oliveira, UEPG; Cleoci Beninca, IFSC; MARCELO LAZZAROTTO, CNPF; Egon Schnitzler, UEPG. |
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Título: |
Extração e caracterização de amido nativo de pinhão de diferentes procedências (PR, SC, RS). |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO DE ANÁLISE TÉRMICA, 8., 2017, Ponta Grossa. Livro de resumos. [Ponta Grossa: UEPG, 2017]. |
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Páginas: |
p. 47. |
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Idioma: |
Português |
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Palavras-Chave: |
Análise térmica; Thermal analisys. |
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Thesagro: |
Amido; Araucaria angustifolia; Pinhão. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167507/1/2017-MarceloL-SAT-Extracao.pdf
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Marc: |
LEADER 00763nam a2200241 a 4500
001 2080739
005 2017-11-27
008 2017 bl uuuu u00u1 u #d
100 1 $aLEMES, B. M.
245 $aExtração e caracterização de amido nativo de pinhão de diferentes procedências (PR, SC, RS).$h[electronic resource]
260 $aIn: SIMPÓSIO DE ANÁLISE TÉRMICA, 8., 2017, Ponta Grossa. Livro de resumos. [Ponta Grossa: UEPG$c2017
300 $ap. 47.
650 $aAmido
650 $aAraucaria angustifolia
650 $aPinhão
653 $aAnálise térmica
653 $aThermal analisys
700 1 $aRISTOW, N.
700 1 $aBET, C. D.
700 1 $aOLIVEIRA, C. S. de
700 1 $aBENINCA, C.
700 1 $aLAZZAROTTO, M.
700 1 $aSCHNITZLER, E.
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Embrapa Florestas (CNPF) |
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