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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; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
15/12/2009 |
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Data da última atualização: |
29/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOBO, A. M. B. O.; LOBO, R. N. B.; PAIVA, S. R.; OLIVEIRA, S. M. P. de; FACO, O. |
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Afiliação: |
ANA MARIA BEZERRA OLIVEIRA LÔBO, UNIVERSIDADE FEDERAL DO CEARÁ; RAIMUNDO NONATO BRAGA LOBO, CNPC; SAMUEL REZENDE PAIVA, CENARGEN; SÔNIA MARIA PINHEIRO DE OLIVEIRA, UNIVERSIDADE FEDERAL DO CEARÁ; OLIVARDO FACO, CNPC. |
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Título: |
Genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Genetics and Molecular Biology, v. 32, n. 4, p. 761-770, 2009. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
The genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population were estimated by applying the Average Information Restricted Maximum Likelihood method to an animal model. Data from a flock supported by the Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC) were used. The traits studied included birth weight (BW), weaning weight (WW), slaughter weight (SW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain from weaning to slaughter (GWS), weight gain from weaning to yearling (GWY), age at first lambing (AFL), lambing interval (LI), gestation length (GL), lambing date (LD - number of days between the start of breeding season and lambing), litter weight at birth (LWB) and litter weight at weaning (LWW). The direct heritabilities were 0.35, 0.81, 0.65, 0.49, 0.20, 0.15 and 0.39 for BW, WW, SW, YW, GBW, GWS and GWY, respectively, and 0.04, 0.06, 0.10, 0.05, 0.15 and 0.11 for AFL, LI, GL, LD, LWB and LWW, respectively. Positive genetic correlations were observed among body weights. In contrast, there was a negative genetic correlation between GBW and GWS (-0.49) and GBW and GWY (-0.56). Positive genetic correlations were observed between AFL and LI, LI and GL, and LWB and LWW. These results indicate a strong maternal influence in this herd and the presence of sufficient genetic variation to allow mass selection for growth traits. Additive effects were of little importance for reproductive traits, and other strategies are necessary to improve the performance of these animals. MenosThe genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population were estimated by applying the Average Information Restricted Maximum Likelihood method to an animal model. Data from a flock supported by the Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC) were used. The traits studied included birth weight (BW), weaning weight (WW), slaughter weight (SW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain from weaning to slaughter (GWS), weight gain from weaning to yearling (GWY), age at first lambing (AFL), lambing interval (LI), gestation length (GL), lambing date (LD - number of days between the start of breeding season and lambing), litter weight at birth (LWB) and litter weight at weaning (LWW). The direct heritabilities were 0.35, 0.81, 0.65, 0.49, 0.20, 0.15 and 0.39 for BW, WW, SW, YW, GBW, GWS and GWY, respectively, and 0.04, 0.06, 0.10, 0.05, 0.15 and 0.11 for AFL, LI, GL, LD, LWB and LWW, respectively. Positive genetic correlations were observed among body weights. In contrast, there was a negative genetic correlation between GBW and GWS (-0.49) and GBW and GWY (-0.56). Positive genetic correlations were observed between AFL and LI, LI and GL, and LWB and LWW. These results indicate a strong maternal influence in this herd and the presence of sufficient genetic variation to allow mass selection for growth traits. Additive effects were of little importance for reproductive tr... Mostrar Tudo |
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Palavras-Chave: |
Cross-breeding; Herdabilidade; Peso de leitegada. |
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Thesagro: |
Genética Animal; Ovino; Peso ao Nascer; Variação Genética. |
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Thesaurus Nal: |
Age; Body weight; Crossbreds; Genetic correlation; Genetic variation; Heritability; Litter weight; Parturition interval; Sheep meat. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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Marc: |
LEADER 02609naa a2200361 a 4500
001 1578074
005 2023-08-29
008 2009 bl uuuu u00u1 u #d
100 1 $aLOBO, A. M. B. O.
245 $aGenetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population.$h[electronic resource]
260 $c2009
520 $aThe genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population were estimated by applying the Average Information Restricted Maximum Likelihood method to an animal model. Data from a flock supported by the Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC) were used. The traits studied included birth weight (BW), weaning weight (WW), slaughter weight (SW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain from weaning to slaughter (GWS), weight gain from weaning to yearling (GWY), age at first lambing (AFL), lambing interval (LI), gestation length (GL), lambing date (LD - number of days between the start of breeding season and lambing), litter weight at birth (LWB) and litter weight at weaning (LWW). The direct heritabilities were 0.35, 0.81, 0.65, 0.49, 0.20, 0.15 and 0.39 for BW, WW, SW, YW, GBW, GWS and GWY, respectively, and 0.04, 0.06, 0.10, 0.05, 0.15 and 0.11 for AFL, LI, GL, LD, LWB and LWW, respectively. Positive genetic correlations were observed among body weights. In contrast, there was a negative genetic correlation between GBW and GWS (-0.49) and GBW and GWY (-0.56). Positive genetic correlations were observed between AFL and LI, LI and GL, and LWB and LWW. These results indicate a strong maternal influence in this herd and the presence of sufficient genetic variation to allow mass selection for growth traits. Additive effects were of little importance for reproductive traits, and other strategies are necessary to improve the performance of these animals.
650 $aAge
650 $aBody weight
650 $aCrossbreds
650 $aGenetic correlation
650 $aGenetic variation
650 $aHeritability
650 $aLitter weight
650 $aParturition interval
650 $aSheep meat
650 $aGenética Animal
650 $aOvino
650 $aPeso ao Nascer
650 $aVariação Genética
653 $aCross-breeding
653 $aHerdabilidade
653 $aPeso de leitegada
700 1 $aLOBO, R. N. B.
700 1 $aPAIVA, S. R.
700 1 $aOLIVEIRA, S. M. P. de
700 1 $aFACO, O.
773 $tGenetics and Molecular Biology$gv. 32, n. 4, p. 761-770, 2009.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| 4. |  | ANDRIOLI, A. Manejo reprodutivo. In: CHAPAVAL, L.; OLIVEIRA, A. A. da F.; ALVES, F. S. F.; ANDRIOLI, A.; ARAUJO, A. M. de; OLIVINDO, C. de S. Manual do produtor de cabras leiteiras. Viçosa, MG: Aprenda Fácil: Embrapa, 2006. Cap.5, p. 95-126.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 13. | | ANDRIOLI, A.; SIMPLÍCIO, A. A.; MACHADO, R. Taxa de ovulação no pós-parto em cabras SRD no Nordeste do Brasil. Revista Brasileira de Reprodução Animal, Belo Horizonte, v. 13, p. 159-160, 1989. Suplemento 1. Ref. 069. Revista Brasileira de Reprodução Animal, Belo Horizonte, v. 13, p. 158, 1989. Suplemento 1. Ref. 068. Edição das conferências e resumos do 8o. Congresso Brasileiro de Reprodução Animal, Belo Horizonte, jul. 1989.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 17. | | MACHAD0, R.; SIMPLICIO, A. A.; ANDRIOLI, A. Body weight, scrotal-testicular measurements and semen characteristics of three different goat genotypes. Revista Terra Arida, n. 11, n. 1, p. 123-132, Abr. 1992. Simposio Internacional de Explotacion Caprina en zonas aridas, Coquimbo, Chile, Oct 1990.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 336 | |
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