| |
|
|
| Registros recuperados : 335 | |
| Registros recuperados : 335 | |
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Corte. |
|
Data corrente: |
27/03/2009 |
|
Data da última atualização: |
13/05/2009 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
BARICHELLO, F.; ALENCAR, M. M. de; TORRES JUNIOR, R. A. de A. |
|
Afiliação: |
Fabiana Barichello, Pós-graduanda UNESP/Jaboticabal; Maurício Mello de Alencar, CPPSE; Roberto Augusto de Almeida Torres Junior, CNPGC. |
|
Título: |
Analyses of breeding values for simulated discrete visual score data with different distributions and different genetic parameters |
|
Ano de publicação: |
2008 |
|
Fonte/Imprenta: |
In: WORLD CONFERENCE ANIMAL PRODUCTION, 10., 2008, Cape Town. Abstracts... Cape Town: WAAP: SASAS: Wageningen Academic, 2008. |
|
Páginas: |
p. 44 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The aim was to evaluate me effect of me form (Y) of assigning discrete visual scores (VS) based on a continuous underlying scale (US) on me estimares of me breeding values (BV) for two heritability values (H: 0.25 and 0.49) and two contemporary group variançevalues (GC: 0.04 and 0.16). Herds wim 40 bulls and 1,200 cows, mated at ranJam, were simulated for 20 years. Direçt and maternal BV; maternal permanent environmental, contemporary group and age of dam effects were generated and combined wim an independent error term to form me phenotype in me USo The VS data were assigned according to symmetric relative and fixed and asymmetric rdative distributions. The BV was estimated using a linear modeI wim me Gibbs SampIer. The procedure was repeated five times for each situation. CorreIation (R) between estimated and true BV was obtained for each animal cIass (sires, dams and olfspring).~ignificant elfects ofH on R for alI animal classes were found (0.49 presented greater R). For bulls, significant elfects ofH x GC interaction on R were found (greater H and smalIer GC presented greater R). Y had no elfect on R. Larger sampIes mar be needed for better evaluating me elfeçts of me factors on BV estimares for VS. |
|
Palavras-Chave: |
Bovino de corte. |
|
Thesagro: |
Melhoramento Genético Animal; Parâmetro Genético. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01919naa a2200193 a 4500
001 1326774
005 2009-05-13
008 2008 bl --- 0-- u #d
100 1 $aBARICHELLO, F.
245 $aAnalyses of breeding values for simulated discrete visual score data with different distributions and different genetic parameters
260 $c2008
300 $ap. 44
520 $aThe aim was to evaluate me effect of me form (Y) of assigning discrete visual scores (VS) based on a continuous underlying scale (US) on me estimares of me breeding values (BV) for two heritability values (H: 0.25 and 0.49) and two contemporary group variançevalues (GC: 0.04 and 0.16). Herds wim 40 bulls and 1,200 cows, mated at ranJam, were simulated for 20 years. Direçt and maternal BV; maternal permanent environmental, contemporary group and age of dam effects were generated and combined wim an independent error term to form me phenotype in me USo The VS data were assigned according to symmetric relative and fixed and asymmetric rdative distributions. The BV was estimated using a linear modeI wim me Gibbs SampIer. The procedure was repeated five times for each situation. CorreIation (R) between estimated and true BV was obtained for each animal cIass (sires, dams and olfspring).~ignificant elfects ofH on R for alI animal classes were found (0.49 presented greater R). For bulls, significant elfects ofH x GC interaction on R were found (greater H and smalIer GC presented greater R). Y had no elfect on R. Larger sampIes mar be needed for better evaluating me elfeçts of me factors on BV estimares for VS.
650 $aMelhoramento Genético Animal
650 $aParâmetro Genético
653 $aBovino de corte
700 1 $aALENCAR, M. M. de
700 1 $aTORRES JUNIOR, R. A. de A.
773 $tIn: WORLD CONFERENCE ANIMAL PRODUCTION, 10., 2008, Cape Town. Abstracts... Cape Town: WAAP: SASAS: Wageningen Academic, 2008.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
