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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: |
07/07/2017 |
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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: |
PADILHA, A. H.; COSTA, C. N.; NETO, J. B.; DALTRO, D. dos S.; COBUCI, J. A. |
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Afiliação: |
Alessandro Haiduck Padilha, Universidade Federal do Rio Grande do Sul; CLAUDIO NAPOLIS COSTA, CNPGL; José Braccini Neto, Universidade Federal do Rio Grande do Sul; Darlene dos Santos Daltro, Universidade Federal do Rio Grande do Sul; Jaime Araújo Cobuci, Universidade Federal do Rio Grande do Sul. |
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Título: |
Selecting random regression models under different minimum number of test day records. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Livestock Science, v. 199, p. 69-73, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to compare EBVs, reliability and genetic parameters in random regression models with Legendre polynomials using structures of data sets with different minimum number of test days in lactation. The original data base was edited in order to prepare for subsets by deleting cows that did not have at least 4, 6, 8 or 10 test day (TD) records in lactation. The original intervals between monthly TD were used. Random regression models with third (M3), fourth (M4) and fifth-order (M5) Legendre polynomial were used. The lowest values of AIC, BIC, −2LogL and RV was found in the models with highest Legendre polynomials orders within structure with 6, 8 and 10 TD and lowest in structure with 4 TD. The eigenvalues indicated models with lowest Legendre polynomial orders as M3 and M4 in all structures. Heritability on days in milk ranged from 0.24 to 0.48 for M3 and from 0.17 to 0.31 for M4 and M5. Spearman correlations of EBVs of bulls and cows between M3, M4 and M5 were higher than 0.99 in all structures. Average reliability of EBVs of a group of bulls in common was around 0.82, 0.82, 0.80 and 0.63 in structures with at least 4, 6, 8 and 10 TD, respectively. Results indicate M3 and M4 as sufficient for genetic evaluations in all data sets of Holstein cattle. Random regression models will have similar reliability and ranks of EBVs in data sets with a minimum of 4, 6 or 8 TD. |
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Palavras-Chave: |
Genetic correlations; Legendre polynomial; Test day milk yield. |
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Thesaurus Nal: |
reliability. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02054naa a2200217 a 4500
001 2072290
005 2023-01-27
008 2017 bl uuuu u00u1 u #d
100 1 $aPADILHA, A. H.
245 $aSelecting random regression models under different minimum number of test day records.$h[electronic resource]
260 $c2017
520 $aThe objective of this study was to compare EBVs, reliability and genetic parameters in random regression models with Legendre polynomials using structures of data sets with different minimum number of test days in lactation. The original data base was edited in order to prepare for subsets by deleting cows that did not have at least 4, 6, 8 or 10 test day (TD) records in lactation. The original intervals between monthly TD were used. Random regression models with third (M3), fourth (M4) and fifth-order (M5) Legendre polynomial were used. The lowest values of AIC, BIC, −2LogL and RV was found in the models with highest Legendre polynomials orders within structure with 6, 8 and 10 TD and lowest in structure with 4 TD. The eigenvalues indicated models with lowest Legendre polynomial orders as M3 and M4 in all structures. Heritability on days in milk ranged from 0.24 to 0.48 for M3 and from 0.17 to 0.31 for M4 and M5. Spearman correlations of EBVs of bulls and cows between M3, M4 and M5 were higher than 0.99 in all structures. Average reliability of EBVs of a group of bulls in common was around 0.82, 0.82, 0.80 and 0.63 in structures with at least 4, 6, 8 and 10 TD, respectively. Results indicate M3 and M4 as sufficient for genetic evaluations in all data sets of Holstein cattle. Random regression models will have similar reliability and ranks of EBVs in data sets with a minimum of 4, 6 or 8 TD.
650 $areliability
653 $aGenetic correlations
653 $aLegendre polynomial
653 $aTest day milk yield
700 1 $aCOSTA, C. N.
700 1 $aNETO, J. B.
700 1 $aDALTRO, D. dos S.
700 1 $aCOBUCI, J. A.
773 $tLivestock Science$gv. 199, p. 69-73, 2017.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
11/03/2011 |
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Data da última atualização: |
04/07/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOUZA, S. C.; RODRIGUES, M. dos S.; FERREIRA, L. C. O.; ARRUDA, M. S. P.; GUILHON, G. M. S. P.; SOUZA FILHO, A. P. da S.; SANTOS, L. da S. |
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Afiliação: |
SAVYO CASTRO SOUZA, UFPA; MARCELO DOS SANTOS RODRIGUES, UFPA; LUED CARLOS OLIVEIRA FERREIRA, UFPA; MARA SILVIA PINHEIRO ARRUDA, UFPA; GISELLE MARIA SKELDING PINHEIRO GUILHON, UFPA; ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU; LOURIVAL DA SILVA SANTOS, UFPA. |
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Título: |
Ensaios alelopáticos dos extratos brutos das folhas de Myrcia paivae. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL SOCIEDADE BRASILEIRA DE QUÍMICA, 33., 2010, Águas de Lindóia. A química construindo um futuro melhor. [São Paulo]: SBQ, 2010. |
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Idioma: |
Português |
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Palavras-Chave: |
Alelopáticos; Bioensaios. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/29309/1/EnsaiosAlelopaticos.pdf
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Marc: |
LEADER 00699nam a2200193 a 4500
001 1880447
005 2022-07-04
008 2010 bl uuuu u00u1 u #d
100 1 $aSOUZA, S. C.
245 $aEnsaios alelopáticos dos extratos brutos das folhas de Myrcia paivae.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL SOCIEDADE BRASILEIRA DE QUÍMICA, 33., 2010, Águas de Lindóia. A química construindo um futuro melhor. [São Paulo]: SBQ$c2010
653 $aAlelopáticos
653 $aBioensaios
700 1 $aRODRIGUES, M. dos S.
700 1 $aFERREIRA, L. C. O.
700 1 $aARRUDA, M. S. P.
700 1 $aGUILHON, G. M. S. P.
700 1 $aSOUZA FILHO, A. P. da S.
700 1 $aSANTOS, L. da S.
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