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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
24/09/2010 |
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Data da última atualização: |
30/08/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
BARICHELLO, F.; ALENCAR, M. M. de; TORRES JUNIOR, R. A. de A.; SILVA, L. O. C. da. |
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Afiliação: |
FABIANA BARICHELLO, PÓS-DOUTORANDA UNESP/JABOTICABAL; MAURICIO MELLO DE ALENCAR, CPPSE; ROBERTO AUGUSTO DE A TORRES JUNIOR, CNPGC; LUIZ OTAVIO CAMPOS DA SILVA, CNPGC. |
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Título: |
Heritability Estimates For Visual Score Data Using Linear And Threshold Models ? A Simulation Study. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 9., 2010, Leipzig. Proceedings... Leipzig: German Society fo Animal Science, 2010. |
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Descrição Física: |
1 CD-ROM |
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Idioma: |
Português |
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Conteúdo: |
Genetic improvement programs in Brazil involve the monitoring of several traits, such as body structure, precocity, and muscling, which are evaluated using visual scores that have a discrete nature. The systems used to evaluate animals vary in terms of the number of classes, the referential from which the scores are given, and the dispersion of observations in score classes. These traits are usually analyzed as if they were continuous using linear models, a methodology that is not optimal. More adequate methodologies, such as threshold models, have been described for these traits. Another approach to analyze discrete traits is using transformation procedures, which makes the use of a linear model more appealing. The objective in this study was to use simulation in order to evaluate the impact of different forms of assigning visual scores to a continuous trait, genetic parameters, and methodologies of analysis on variance component estimates. |
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Palavras-Chave: |
Analysis on variance; Body structure; Estrutura corporal; Genetic parameters; Precocity. |
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Thesaurus Nal: |
beef cattle. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01733nam a2200229 a 4500
001 1862897
005 2013-08-30
008 2010 bl uuuu u00u1 u #d
100 1 $aBARICHELLO, F.
245 $aHeritability Estimates For Visual Score Data Using Linear And Threshold Models ? A Simulation Study.
260 $aIn: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 9., 2010, Leipzig. Proceedings... Leipzig: German Society fo Animal Science$c2010
300 $c1 CD-ROM
520 $aGenetic improvement programs in Brazil involve the monitoring of several traits, such as body structure, precocity, and muscling, which are evaluated using visual scores that have a discrete nature. The systems used to evaluate animals vary in terms of the number of classes, the referential from which the scores are given, and the dispersion of observations in score classes. These traits are usually analyzed as if they were continuous using linear models, a methodology that is not optimal. More adequate methodologies, such as threshold models, have been described for these traits. Another approach to analyze discrete traits is using transformation procedures, which makes the use of a linear model more appealing. The objective in this study was to use simulation in order to evaluate the impact of different forms of assigning visual scores to a continuous trait, genetic parameters, and methodologies of analysis on variance component estimates.
650 $abeef cattle
653 $aAnalysis on variance
653 $aBody structure
653 $aEstrutura corporal
653 $aGenetic parameters
653 $aPrecocity
700 1 $aALENCAR, M. M. de
700 1 $aTORRES JUNIOR, R. A. de A.
700 1 $aSILVA, L. O. C. da
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/12/1993 |
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Data da última atualização: |
16/02/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
DE NARDO, E. A. B.; COSTA, A. S.; LOURENCAO, A. L.; FERNANDES, M. S. |
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Afiliação: |
ELISABETH A. B. DE NARDO, EMBRAPA-CNPDA; IAC; IAC; EMBRAPA-CNPDA. |
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Título: |
Melia azedarach extract interferes in the colonization of Bemisia tabaci on beans. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
In: INTERNATIONAL PLANT PROTECTION CONGRESS, 12., 1991, Rio de Janeiro. Oral and poster sessions - program and abstracts. Rio de Janeiro: [s.n.], 1991. |
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Páginas: |
n.p |
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Idioma: |
Inglês |
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Palavras-Chave: |
Colonization; Extract; Insect; Interference; Pest; Whitefly. |
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Thesagro: |
Bemisia Tabaci; Melia Azedarach. |
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Thesaurus NAL: |
beans. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/10811/1/1991PC-Nardo-Melia-1454.PDF
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Marc: |
LEADER 00797nam a2200253 a 4500
001 1010811
005 2023-02-16
008 1991 bl uuuu u00u1 u #d
100 1 $aDE NARDO, E. A. B.
245 $aMelia azedarach extract interferes in the colonization of Bemisia tabaci on beans.$h[electronic resource]
260 $aIn: INTERNATIONAL PLANT PROTECTION CONGRESS, 12., 1991, Rio de Janeiro. Oral and poster sessions - program and abstracts. Rio de Janeiro: [s.n.]$c1991
300 $an.p
650 $abeans
650 $aBemisia Tabaci
650 $aMelia Azedarach
653 $aColonization
653 $aExtract
653 $aInsect
653 $aInterference
653 $aPest
653 $aWhitefly
700 1 $aCOSTA, A. S.
700 1 $aLOURENCAO, A. L.
700 1 $aFERNANDES, M. S.
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