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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
13/02/2015 |
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Data da última atualização: |
13/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCIMENTO, G. B.; SEVEGNAGO, R. P.; CHUD, T. C. S.; LEDUR, M. C.; FIGUEIREDO, E. A. P. de; MUNARI, D. P. |
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Afiliação: |
GUILHERME B. NASCIMENTO, UNESP; RODRIGO PELICIONI SAVEGNAGO, UNESP; UNESP; MONICA CORREA LEDUR, CNPSA; ELSIO ANTONIO PEREIRA DE FIGUEIREDO, CNPSA; DANÍSIO PRADO MUNARI, UNESP. |
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Título: |
Genetic parameter estimates and principal component analysis on performance and carcass traits of a terminal pig sire line. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Acta Agriculturae Scandinavica, Section A , 4 sept. 2014. |
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DOI: |
10.1080/09064702.2014.950322 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to estimate genetic parameters for five traits related to erformance and carcass in a terminal pig sire line using multitrait (MUV) and reduced rank animal models, and to analyze the relationship between the breeding values (EBVs) of the traits using genetic principal component analysis (PCA) applied directly on the mixed model equations (onestep PCA) and on the EBVs obtained using the MUV (two-step PCA). The heritabilities were very similar using both procedures ranged from 0.032 ± 0.014 for feed conversion to 0.102 ± 0.029 for lean meat. Except for some differences in the heritability for feed conversion ratio, the heritability estimates were remarkably similar using One-step PCA or MUV. The genetic correlations obtained using One-Step PCA were more reliable due to their lower standard errors compared to those obtained using MUV. The one-step PCA had better fit than MUV and could reduce the time computing due to the reduction of the additive genetic matrix. |
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Palavras-Chave: |
Análise multivariada; Herança genética; Qualidade da carne. |
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Thesagro: |
Carcaça; Genética animal; Método estatístico; Suíno. |
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Thesaurus Nal: |
Animal fats and oils; Backfat; bacon; Breeding value; Carcass composition; Genetic correlation; Heritability; Multivariate analysis; Sire evaluation; Swine. |
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Categoria do assunto: |
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Marc: |
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
