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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/01/2012 |
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Data da última atualização: |
22/01/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOBO, R. N. B.; FERNANDES JÚNIOR, G. A.; LOBO, A. M. B. O. |
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Afiliação: |
RAIMUNDO NONATO BRAGA LOBO, CNPC; Gerardo Alves Fernandes Júnior, UNESP, Jaboticabal, SP.; ANA MARIA BEZERRA OLIVEIRA LOBO, CNPC. |
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Título: |
Genetic (co)variance components for ratio of lamb weight to ewe metabolic weight as an indicator of ewe efficiency. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Livestock Science, Amsterdam, v. 143, p. 214-219, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Data from a multibreed commercial flock located at Mid-West of Brazil, supported by Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC),were used to estimate genetic parameters of traits related to ewe productivity by Average Information Restricted Maximum Likelihood method applied to an animal model. The analyzed traits were litter weight at birth (LWB) and atweaning (LWW), eweweight atweaning (EW)and ewe production efficiency, estimated by WEE=LWW/EW0.75. The heritabilities were 0.26±0.05, 0.32±0.06, 0.37±0.03 and 0.10±0.02 for LWB, LWW, EWand WEE, respectively. Significant effects for direct heterosis were observed for LWWand EW. Recombination losseswere important for EWandWEE. Genetic correlations of LWBwith LWW, EWandWEEwere 0.68, 0.37 and 0.15, respectively; of LWWwith EW and WEE were 0.30 and 0.34, respectively; and between EW and WEE was ?0.25. Even though it is a low heritability trait, WEE can be indicated as a selection criteria for improving the ewe productivity without increasing the mature weight of animals due to its genetic correlations with LWWand other traits. |
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Palavras-Chave: |
Animal model; Brasil; Correlação genética; Herdabilidade; Modelo animal; Multibreed flock; Non-additive effects. |
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Thesagro: |
Cordeiro; Melhoramento genético animal; Ovino; Peso ao nascer. |
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Thesaurus Nal: |
Birth weight; Genetic correlation; Heritability; Sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02052naa a2200325 a 4500
001 1912522
005 2016-01-22
008 2012 bl uuuu u00u1 u #d
100 1 $aLOBO, R. N. B.
245 $aGenetic (co)variance components for ratio of lamb weight to ewe metabolic weight as an indicator of ewe efficiency.
260 $c2012
520 $aData from a multibreed commercial flock located at Mid-West of Brazil, supported by Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC),were used to estimate genetic parameters of traits related to ewe productivity by Average Information Restricted Maximum Likelihood method applied to an animal model. The analyzed traits were litter weight at birth (LWB) and atweaning (LWW), eweweight atweaning (EW)and ewe production efficiency, estimated by WEE=LWW/EW0.75. The heritabilities were 0.26±0.05, 0.32±0.06, 0.37±0.03 and 0.10±0.02 for LWB, LWW, EWand WEE, respectively. Significant effects for direct heterosis were observed for LWWand EW. Recombination losseswere important for EWandWEE. Genetic correlations of LWBwith LWW, EWandWEEwere 0.68, 0.37 and 0.15, respectively; of LWWwith EW and WEE were 0.30 and 0.34, respectively; and between EW and WEE was ?0.25. Even though it is a low heritability trait, WEE can be indicated as a selection criteria for improving the ewe productivity without increasing the mature weight of animals due to its genetic correlations with LWWand other traits.
650 $aBirth weight
650 $aGenetic correlation
650 $aHeritability
650 $aSheep
650 $aCordeiro
650 $aMelhoramento genético animal
650 $aOvino
650 $aPeso ao nascer
653 $aAnimal model
653 $aBrasil
653 $aCorrelação genética
653 $aHerdabilidade
653 $aModelo animal
653 $aMultibreed flock
653 $aNon-additive effects
700 1 $aFERNANDES JÚNIOR, G. A.
700 1 $aLOBO, A. M. B. O.
773 $tLivestock Science, Amsterdam$gv. 143, p. 214-219, 2012.
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| 20. |  | ALVES, R. N. B. A importância da matéria orgânica nos solos tropicais. Portal EcoDebate, 20 out. 2014. Publicado também em: http://www.plurale.com.br/site/noticias-detalhes.php?cod=13823&codSecao=2; Publicado também em: http://ifagroecologia.blogspot.com.br/2014/10/importancia-da-materia-organica-nos.html; Publicado também em:...| Tipo: Artigo de Divulgação na Mídia |
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