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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
31/08/2017 |
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Data da última atualização: |
22/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BARBOSA, R. I.; MOURÃO JUNIOR, M.; CASADIO, G. M. L.; SILVA, S. J. R. da. |
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Afiliação: |
Reinaldo Imbrozio Barbosa, INPA; MOISES CORDEIRO MOURAO DE O JUNIOR, CPATU; Giliola Maria Lima Casadio, Roraima State Foundation for Environment and Water Resources; Silvio José Reis da Silva, State University of Roraima. |
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Título: |
Reproductive phenology of the main tree species in the Roraima Savanna, brazilian Amazon. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Ecotropica, v. 18, n. 2, p. 81-92, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The reproductive phenological patterns were investigated in the three most abundant tree species in the Roraima open savanna: Curatella americana L.f. (Dilleniaceae), Byrsonima crassifolia (L.) Kunth, and B. coccolobifolia Kunth (Malpighiaceae). A total of 112 trees were marked for study over a period of 24 months (2001-2003), and the existence of climatic synchrony and duration of phenological phases that characterize the reproductive patterns of each population were investigated. The results indicate (i) in C. americana and B. crassifolia reproductive phenological events were strongly associated with low amounts of rainfall, but climatic synchrony was not clearly pronounced in B. coccolobifolia, (ii) each species demonstrated its own distinct phenophase duration and population synchrony, and (iii) the phenological pattern for the three species can be defined as intermediate (between the beginning and end of the dry season), with all species using zoochory as the principal means of seed dispersal. We conclude that for all three species, the majority of phenological events occur during the dry season peak, which corresponds to the lowest amount of cloud cover and the highest amount of insolation across most of the savanna in Roraima. The phenological patterns and the reproductive cycles of the three species studied are similar to those observed in other savanna regions of Brazilian Amazonia and Venezuela. |
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Palavras-Chave: |
Fenologia reprodutiva. |
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Thesagro: |
Árvore; Floresta. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 01996naa a2200193 a 4500
001 2074772
005 2021-12-22
008 2012 bl uuuu u00u1 u #d
100 1 $aBARBOSA, R. I.
245 $aReproductive phenology of the main tree species in the Roraima Savanna, brazilian Amazon.$h[electronic resource]
260 $c2012
520 $aThe reproductive phenological patterns were investigated in the three most abundant tree species in the Roraima open savanna: Curatella americana L.f. (Dilleniaceae), Byrsonima crassifolia (L.) Kunth, and B. coccolobifolia Kunth (Malpighiaceae). A total of 112 trees were marked for study over a period of 24 months (2001-2003), and the existence of climatic synchrony and duration of phenological phases that characterize the reproductive patterns of each population were investigated. The results indicate (i) in C. americana and B. crassifolia reproductive phenological events were strongly associated with low amounts of rainfall, but climatic synchrony was not clearly pronounced in B. coccolobifolia, (ii) each species demonstrated its own distinct phenophase duration and population synchrony, and (iii) the phenological pattern for the three species can be defined as intermediate (between the beginning and end of the dry season), with all species using zoochory as the principal means of seed dispersal. We conclude that for all three species, the majority of phenological events occur during the dry season peak, which corresponds to the lowest amount of cloud cover and the highest amount of insolation across most of the savanna in Roraima. The phenological patterns and the reproductive cycles of the three species studied are similar to those observed in other savanna regions of Brazilian Amazonia and Venezuela.
650 $aÁrvore
650 $aFloresta
653 $aFenologia reprodutiva
700 1 $aMOURÃO JUNIOR, M.
700 1 $aCASADIO, G. M. L.
700 1 $aSILVA, S. J. R. da
773 $tEcotropica$gv. 18, n. 2, p. 81-92, 2012.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Pantanal. |
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Data corrente: |
04/01/2023 |
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Data da última atualização: |
04/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ARAÚJO, T. L. A. C. de; FEIJO, G. L. D.; NEVES, A. P.; NOGUEIRA, E.; OLIVEIRA, L. O. F. de; GOMES, M. de N. B.; EGITO, A. A. do; FERRAZ, A. L. J.; MENEZES, G. R. de O.; LATTA, K. I.; FERREIRA, J. R.; VIEIRA, D. G.; PEREIRA, E. S.; GOMES, R. da C. |
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Afiliação: |
THIAGO LUÍS ALVES CAMPOS DE ARAÚJO, UNIVERSIDADE FEDERAL DO CEARÁ; GELSON LUIS DIAS FEIJO, CNPGC; ANDREI PEREIRA NEVES, UNIVERSIDADE ESTADUAL DE LONDRINA; ERIKLIS NOGUEIRA, CPAP; LUIZ ORCIRIO FIALHO DE OLIVEIRA, CNPGC; MARINA DE NADAI BONIN GOMES, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; ANDREA ALVES DO EGITO, CNPGC; ANDRÉ LUIZ JULIEN FERRAZ, UNIVERSIDADE ESTADUAL DE MATO GROSSO DO SUL; GILBERTO ROMEIRO DE OLIVEIRA MENEZE, CNPGC; KARLA IZIDIO LATTA, UNIVERSIDADE ESTADUAL DE LONDRINA; JAQUELINE RODRIGUES FERREIRA, UNIVERSIDADE ESTADUAL DE LONDRINA; DOUGLAS GOMES VIEIRA, UNIVERSIDADE ESTADUAL DE LONDRINA; ELZANIA SALES PEREIRA, UNIVERSIDADE FEDERAL DO CEARÁ; RODRIGO DA COSTA GOMES, CNPGC. |
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Título: |
Effect of genetic merit for backfat thickness and paternal breed on performance, carcass traits, and gene expression in subcutaneous adipose tissue of feedlot-finished steers. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Livestock Science, v. 263, article 104998, 2022. |
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ISSN: |
1871-1413 |
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DOI: |
https://doi.org/10.1016/j.livsci.2022.104998 |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated selection for backfat thickness based on genetic merit (GMB) in Nellore (N) and crossbred (½ Aberdeen Angus + ½ Nellore, AN) steers, as well as the effects of this selection on animal performance, carcass traits, and gene expression in subcutaneous adipose tissue (SAT). The animals were obtained by mating Nellore cows with Nellore or Aberdeen Angus bulls. Both paternal genetic groups were selected to have positive (+, high GMB) or negative (-, low GMB) expected progeny differences for backfat thickness. Seventy-six animals (14 N+, 20 N-, 20 AN+, and 22 AN-) were reared on pasture and finished in the feedlot. The animals were slaughtered, and SAT samples were collected to investigate the relative expression of the acetyl-CoA carboxylase alpha (ACACA), adiponectin, C1Q and collagen domain containing (ADIPOQ), fatty acid synthase (FASN), perilipin 1 (PLIN1), peroxisome proliferator activated receptor gamma (PPARG), and sterol regulatory element binding protein (SREBF1) genes. Carcass weight and yield, conformation, finishing score, fat distribution score, and measurements of backfat thickness and rib eye area were evaluated. There was no effect of GMB on performance or on the relative expression of the genes studied. High GMB steers had greater backfat thickness and higher finishing, conformation and fat distribution scores in the carcass than low GMB animals. The use of high GMB animals provides better carcass finishing without affecting performance. The greater fat deposition in carcasses of high GMB animals is not associated with the relative expression of the genes studied. MenosThis study evaluated selection for backfat thickness based on genetic merit (GMB) in Nellore (N) and crossbred (½ Aberdeen Angus + ½ Nellore, AN) steers, as well as the effects of this selection on animal performance, carcass traits, and gene expression in subcutaneous adipose tissue (SAT). The animals were obtained by mating Nellore cows with Nellore or Aberdeen Angus bulls. Both paternal genetic groups were selected to have positive (+, high GMB) or negative (-, low GMB) expected progeny differences for backfat thickness. Seventy-six animals (14 N+, 20 N-, 20 AN+, and 22 AN-) were reared on pasture and finished in the feedlot. The animals were slaughtered, and SAT samples were collected to investigate the relative expression of the acetyl-CoA carboxylase alpha (ACACA), adiponectin, C1Q and collagen domain containing (ADIPOQ), fatty acid synthase (FASN), perilipin 1 (PLIN1), peroxisome proliferator activated receptor gamma (PPARG), and sterol regulatory element binding protein (SREBF1) genes. Carcass weight and yield, conformation, finishing score, fat distribution score, and measurements of backfat thickness and rib eye area were evaluated. There was no effect of GMB on performance or on the relative expression of the genes studied. High GMB steers had greater backfat thickness and higher finishing, conformation and fat distribution scores in the carcass than low GMB animals. The use of high GMB animals provides better carcass finishing without affecting performance. The g... Mostrar Tudo |
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Thesagro: |
Carcaça; Cruzamento Animal; Gado Nelore; Gene; Reprodução Animal. |
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Thesaurus NAL: |
Backfat; Breeding value; Crossing; Nellore; Steers; Tissues. |
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Categoria do assunto: |
--
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02910naa a2200433 a 4500
001 2150637
005 2023-01-04
008 2022 bl uuuu u00u1 u #d
022 $a1871-1413
024 7 $ahttps://doi.org/10.1016/j.livsci.2022.104998$2DOI
100 1 $aARAÚJO, T. L. A. C. de
245 $aEffect of genetic merit for backfat thickness and paternal breed on performance, carcass traits, and gene expression in subcutaneous adipose tissue of feedlot-finished steers.$h[electronic resource]
260 $c2022
520 $aThis study evaluated selection for backfat thickness based on genetic merit (GMB) in Nellore (N) and crossbred (½ Aberdeen Angus + ½ Nellore, AN) steers, as well as the effects of this selection on animal performance, carcass traits, and gene expression in subcutaneous adipose tissue (SAT). The animals were obtained by mating Nellore cows with Nellore or Aberdeen Angus bulls. Both paternal genetic groups were selected to have positive (+, high GMB) or negative (-, low GMB) expected progeny differences for backfat thickness. Seventy-six animals (14 N+, 20 N-, 20 AN+, and 22 AN-) were reared on pasture and finished in the feedlot. The animals were slaughtered, and SAT samples were collected to investigate the relative expression of the acetyl-CoA carboxylase alpha (ACACA), adiponectin, C1Q and collagen domain containing (ADIPOQ), fatty acid synthase (FASN), perilipin 1 (PLIN1), peroxisome proliferator activated receptor gamma (PPARG), and sterol regulatory element binding protein (SREBF1) genes. Carcass weight and yield, conformation, finishing score, fat distribution score, and measurements of backfat thickness and rib eye area were evaluated. There was no effect of GMB on performance or on the relative expression of the genes studied. High GMB steers had greater backfat thickness and higher finishing, conformation and fat distribution scores in the carcass than low GMB animals. The use of high GMB animals provides better carcass finishing without affecting performance. The greater fat deposition in carcasses of high GMB animals is not associated with the relative expression of the genes studied.
650 $aBackfat
650 $aBreeding value
650 $aCrossing
650 $aNellore
650 $aSteers
650 $aTissues
650 $aCarcaça
650 $aCruzamento Animal
650 $aGado Nelore
650 $aGene
650 $aReprodução Animal
700 1 $aFEIJO, G. L. D.
700 1 $aNEVES, A. P.
700 1 $aNOGUEIRA, E.
700 1 $aOLIVEIRA, L. O. F. de
700 1 $aGOMES, M. de N. B.
700 1 $aEGITO, A. A. do
700 1 $aFERRAZ, A. L. J.
700 1 $aMENEZES, G. R. de O.
700 1 $aLATTA, K. I.
700 1 $aFERREIRA, J. R.
700 1 $aVIEIRA, D. G.
700 1 $aPEREIRA, E. S.
700 1 $aGOMES, R. da C.
773 $tLivestock Science$gv. 263, article 104998, 2022.
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Embrapa Gado de Corte (CNPGC) |
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