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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: |
09/01/2017 |
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Data da última atualização: |
02/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVES, A. A. C.; LOBO, A. M. B. O.; FACO, O.; SILVA, L. P. da; LOBO, R. N. B. |
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Afiliação: |
Anderson Antonio Carvalho Alves, Pos-Graduação - Universidade Estadual Paulista (UNESP) - Jaboticabal, SP, Brasil; ANA MARIA BEZERRA OLIVEIRA LOBO, CNPC; OLIVARDO FACO, CNPC; Luciano Pinheiro da Silva, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil.; RAIMUNDO NONATO BRAGA LOBO, CNPC. |
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Título: |
Genetic parameters for rank of the Santa Inês sheep in agricultural fairs using Bayesian procedures. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Italian Journal of Animal Science, v. 15, n. 4, p. 604-609, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The aim of this study was to estimate the genetic parameters for the ability of a sheep to rank among the top three in its age category (ABI3) and for its total score (TS) on the judgement championships held in different agricultural fairs in Brazil. Data files included 3180 records referring to 1896 animals for ABI3 and 4383 records referring to 2170 animals for TS. The relationship matrix was composed by 4069 animals. Variance components were estimated fitting threshold and linear animal models for ABI3 and TS, respectively, by Bayesian analysis using the Gibbs sampler. The posterior means of the heritability and repeatability were, respectively, 0.10±0.07 and 0.57±0.11 for ABI3 and 0.12±0.04 and 0.31±0.02 for TS. The low values for the heritabilities related to these traits reveal a strong influence of the environmental factors, as the differential management offered to the animals before and during the fair. The repeatability values for ABI3 suggest high correlation among the animal classifications in different fairs. However, for TS, the observed performance has moderate confidence to be repeated over time. We conclude that although reduced, there is genetic variability for the animal's performance in agricultural fairs. Nevertheless, due to the low heritability estimates, the expected response to direct selection for ABI3 and TS will be low. |
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Palavras-Chave: |
Evaluation; Genetic parameters; Threshold traits. |
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Thesagro: |
Genética animal; Julgamento; Ovino; Parâmetro genético; Variação genética. |
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Thesaurus Nal: |
Genetic variation; Heritability; repeatability; Sheep. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02286naa a2200313 a 4500
001 2060279
005 2017-03-02
008 2016 bl uuuu u00u1 u #d
100 1 $aALVES, A. A. C.
245 $aGenetic parameters for rank of the Santa Inês sheep in agricultural fairs using Bayesian procedures.$h[electronic resource]
260 $c2016
520 $aAbstract: The aim of this study was to estimate the genetic parameters for the ability of a sheep to rank among the top three in its age category (ABI3) and for its total score (TS) on the judgement championships held in different agricultural fairs in Brazil. Data files included 3180 records referring to 1896 animals for ABI3 and 4383 records referring to 2170 animals for TS. The relationship matrix was composed by 4069 animals. Variance components were estimated fitting threshold and linear animal models for ABI3 and TS, respectively, by Bayesian analysis using the Gibbs sampler. The posterior means of the heritability and repeatability were, respectively, 0.10±0.07 and 0.57±0.11 for ABI3 and 0.12±0.04 and 0.31±0.02 for TS. The low values for the heritabilities related to these traits reveal a strong influence of the environmental factors, as the differential management offered to the animals before and during the fair. The repeatability values for ABI3 suggest high correlation among the animal classifications in different fairs. However, for TS, the observed performance has moderate confidence to be repeated over time. We conclude that although reduced, there is genetic variability for the animal's performance in agricultural fairs. Nevertheless, due to the low heritability estimates, the expected response to direct selection for ABI3 and TS will be low.
650 $aGenetic variation
650 $aHeritability
650 $arepeatability
650 $aSheep
650 $aGenética animal
650 $aJulgamento
650 $aOvino
650 $aParâmetro genético
650 $aVariação genética
653 $aEvaluation
653 $aGenetic parameters
653 $aThreshold traits
700 1 $aLOBO, A. M. B. O.
700 1 $aFACO, O.
700 1 $aSILVA, L. P. da
700 1 $aLOBO, R. N. B.
773 $tItalian Journal of Animal Science$gv. 15, n. 4, p. 604-609, 2016.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca |
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Origem |
Tipo/Formato |
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Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
19/12/2012 |
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Data da última atualização: |
24/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
BRIGHENTI, A. M.; ROCHA, W. S. D. da; SOUZA SOBRINHO, F. de; CASTRO, C. de; MARTINS, C. E.; MULLER, M. D. |
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Afiliação: |
ALEXANDRE MAGNO B DOS SANTOS, CNPGL; WADSON SEBASTIAO DUARTE DA ROCHA, CNPGL; FAUSTO DE SOUZA SOBRINHO, CNPGL; CESAR DE CASTRO, CNPSO; CARLOS EUGENIO MARTINS, CNPGL; MARCELO DIAS MULLER, CNPGL. |
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Título: |
Application of reduced rates of ACCase-inhibiting herbicides to sunflower intercropped with brachiaria ruziziensis. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Helia, v. 34, n. 54, p. 39-48, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the tolerance of sunflower (Helianthus annuus) to acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides and to temporarily delay the growth of the forage grass (Brachiaria ruziziensis), avoiding competition and allowing the reestablishment of pasture. A randomized block design with four replicates was used in both experiments. The following treatments were applied in Experiment 1: I) 10 g ai ha-1 tepraloxydim; II) 20 g ai ha-1 tepraloxydim; III) 12.5 g ai ha-1 fluazifop-p-butyl; IV) 25 g ai ha-1 fluazifop-p-butyl; V) 12 g ai ha-1 clethodim; VI) 24 g ai ha-1 clethodim; VII) 6 g ai ha-1 haloxyfop-methyl; VIII) 12 g ai ha-1 haloxyfop-methyl; IX) unhoed check, and X) hoed check. The treatments applied in Experiment 2 were: I) hoed check; II) unhoed check; III) 10 g ai ha-1 tepraloxydim; IV) 20 g ai ha-1 tepraloxydim; V) 12.5 g ai ha-1 fluazifop-p-butyl, and VI) 25 g ai ha-1 fluazifop-p-butyl. All herbicide treatments were selective for the sunflower crop. The use of reduced rates of graminicides is a feasible option to delay the growth of B. ruziziensis, reducing its ability to compete the sunflower. All herbicide rates applied suppressed the growth of B. ruziziensis, permitting subsequent pasture reestablishment. However, tepraloxydim (20 g ai ha-1), clethodim (24 g ai ha-1), and haloxyfop-methyl (12 g ai ha-1) promoted poorer recovery of the forage grass. |
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Palavras-Chave: |
Clearfield; Integrated crop-livestock systems; Sustainable intensification. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02112naa a2200217 a 4500
001 1943155
005 2023-03-24
008 2011 bl uuuu u00u1 u #d
100 1 $aBRIGHENTI, A. M.
245 $aApplication of reduced rates of ACCase-inhibiting herbicides to sunflower intercropped with brachiaria ruziziensis.$h[electronic resource]
260 $c2011
520 $aThe objective of this study was to evaluate the tolerance of sunflower (Helianthus annuus) to acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides and to temporarily delay the growth of the forage grass (Brachiaria ruziziensis), avoiding competition and allowing the reestablishment of pasture. A randomized block design with four replicates was used in both experiments. The following treatments were applied in Experiment 1: I) 10 g ai ha-1 tepraloxydim; II) 20 g ai ha-1 tepraloxydim; III) 12.5 g ai ha-1 fluazifop-p-butyl; IV) 25 g ai ha-1 fluazifop-p-butyl; V) 12 g ai ha-1 clethodim; VI) 24 g ai ha-1 clethodim; VII) 6 g ai ha-1 haloxyfop-methyl; VIII) 12 g ai ha-1 haloxyfop-methyl; IX) unhoed check, and X) hoed check. The treatments applied in Experiment 2 were: I) hoed check; II) unhoed check; III) 10 g ai ha-1 tepraloxydim; IV) 20 g ai ha-1 tepraloxydim; V) 12.5 g ai ha-1 fluazifop-p-butyl, and VI) 25 g ai ha-1 fluazifop-p-butyl. All herbicide treatments were selective for the sunflower crop. The use of reduced rates of graminicides is a feasible option to delay the growth of B. ruziziensis, reducing its ability to compete the sunflower. All herbicide rates applied suppressed the growth of B. ruziziensis, permitting subsequent pasture reestablishment. However, tepraloxydim (20 g ai ha-1), clethodim (24 g ai ha-1), and haloxyfop-methyl (12 g ai ha-1) promoted poorer recovery of the forage grass.
653 $aClearfield
653 $aIntegrated crop-livestock systems
653 $aSustainable intensification
700 1 $aROCHA, W. S. D. da
700 1 $aSOUZA SOBRINHO, F. de
700 1 $aCASTRO, C. de
700 1 $aMARTINS, C. E.
700 1 $aMULLER, M. D.
773 $tHelia$gv. 34, n. 54, p. 39-48, 2011.
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Embrapa Gado de Leite (CNPGL) |
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