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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
30/11/2020 |
Data da última atualização: |
23/02/2021 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
PINHEIRO JUNIOR, C. R.; PEREIRA, M. G.; FONTANA, A.; PINTO, L. A. da S. R. |
Afiliação: |
CARLOS ROBERTO PINHEIRO JUNIOR, UFRRJ; MARCOS GERVASIO PEREIRA, UFRRJ; ADEMIR FONTANA, CNPS; LUIZ ALBERTO DA SILVA RODRIGUES PINTO, UFRRJ. |
Título: |
Carbono das frações húmicas de perfis de solo da XIII RCC. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
In: SILVA, M. B. e; LUMBRERAS, J. F.; COELHO, M. R.; OLIVEIRA, V. A. de (ed.). Guia de campo da XIII Reunião Brasileira de Classificação e Correlação de Solos: RCC do Maranhão. Brasília, DF: Embrapa, 2020. E-book. cap. 16. |
Idioma: |
Português |
Conteúdo: |
O objetivo deste trabalho foi quantificar as frações húmicas de perfis de solos selecionados da XIII RCC, e discutir suas relações associadas aos processos pedogenéticos. |
Thesagro: |
Matéria Orgânica; Perfil do Solo. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218466/1/Guia-de-campo-da-XIII-RCC-Maranhao.epub
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Marc: |
LEADER 00885naa a2200181 a 4500 001 2127308 005 2021-02-23 008 2020 bl uuuu u00u1 u #d 100 1 $aPINHEIRO JUNIOR, C. R. 245 $aCarbono das frações húmicas de perfis de solo da XIII RCC.$h[electronic resource] 260 $c2020 520 $aO objetivo deste trabalho foi quantificar as frações húmicas de perfis de solos selecionados da XIII RCC, e discutir suas relações associadas aos processos pedogenéticos. 650 $aMatéria Orgânica 650 $aPerfil do Solo 700 1 $aPEREIRA, M. G. 700 1 $aFONTANA, A. 700 1 $aPINTO, L. A. da S. R. 773 $tIn: SILVA, M. B. e; LUMBRERAS, J. F.; COELHO, M. R.; OLIVEIRA, V. A. de (ed.). Guia de campo da XIII Reunião Brasileira de Classificação e Correlação de Solos: RCC do Maranhão. Brasília, DF: Embrapa, 2020. E-book. cap. 16.
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Embrapa Solos (CNPS) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
20/04/2015 |
Data da última atualização: |
12/08/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
RIBEIRO JÚNIOR, G. de O.; VELASCO, F. O.; FARIA JÚNIOR, W. G. de; TEIXEIRA, A. de M.; MACHADO, F. S.; MAGALHÃES, F. A.; JAYME, D. G.; GONÇALVES, L. C. |
Afiliação: |
G. DE O. RIBEIRO JÚNIOR, UFMG; F. O. VELASCO, UFMG; W. G. DE FARIA JÚNIOR, UFRR; A. DE M. TEIXEIRA, UFU; FERNANDA SAMARINI MACHADO, CNPGL; F. A. MAGALHÃES, UFMG; D. G. JAYME, UFMG; L. C. GONÇALVES, UFMG. |
Título: |
In situ degradation kinetic of Andropogon gayanus grass silages harvested at three stages of maturity. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v. 66, n. 6, p. 1883-1890, 2014. |
DOI: |
https://doi.org/10.1590/1678-6780 |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT - Maturity is considered the primary factor affecting the nutritive value of forages. The aim of this study was to evaluate and compare dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) ruminal degradation kinetics of Andropogon gayanus grass silages harvested at three stages of maturity (56, 84 and 112 d). Dried and ground silage samples (5 mm) were incubated in nylon bags inside the rumen for 0, 6, 12, 24, 48, 72 and 96 h to estimate the kinetics of ruminal DM, CP and NDF degradation. The ruminal kinetic parameters of the silages from each treatment (56, 84 and 112 d of regrowth) in each animal (5 cows) were determined by the model: y = a + b(1 ? e?c(t?L)). The parameters generated by the model were analyzed as randomized block design, with grass regrowth age as the fixed effect and animal the as random effect (blocks). The grass silage ensiled with 56 days of regrowth had the highest (P<0.05) effective degradability of DM and NDF calculated for fractional rate of particulate passage of 2%/h. All silages had low CP soluble fraction (<25.4%) and effective degradability calculated for fractional rate of particulate passage of 2%/h (<40.1%). A greater (P<0.05) NDF lag time was observed for the silages ensiled with 84 and 112d compared to the silage produced with 56d of regrowth. The ruminal degradation kinetics of Andropogon gayanus grass silages showed that the grass ensiled with 56 days of regrowth had higher nutritional value. RESUMO - Maturity is considered the primary factor affecting the nutritive value of forages. The aim of this study was to evaluate and compare dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) ruminal degradation kinetics of Andropogon gayanus grass silages harvested at three stages of maturity (56, 84 and 112 d). Dried and ground silage samples (5 mm) were incubated in nylon bags inside the rumen for 0, 6, 12, 24, 48, 72 and 96 h to estimate the kinetics of ruminal DM, CP and NDF degradation. The ruminal kinetic parameters of the silages from each treatment (56, 84 and 112 d of regrowth) in each animal (5 cows) were determined by the model: y = a + b(1 ? e?c(t?L)). The parameters generated by the model were analyzed as randomized block design, with grass regrowth age as the fixed effect and animal the as random effect (blocks). The grass silage ensiled with 56 days of regrowth had the highest (P<0.05) effective degradability of DM and NDF calculated for fractional rate of particulate passage of 2%/h. All silages had low CP soluble fraction (<25.4%) and effective degradability calculated for fractional rate of particulate passage of 2%/h (<40.1%). A greater (P<0.05) NDF lag time was observed for the silages ensiled with 84 and 112d compared to the silage produced with 56d of regrowth. The ruminal degradation kinetics of Andropogon gayanus grass silages showed that the grass ensiled with 56 days of regrowth had higher nutritional value. MenosABSTRACT - Maturity is considered the primary factor affecting the nutritive value of forages. The aim of this study was to evaluate and compare dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) ruminal degradation kinetics of Andropogon gayanus grass silages harvested at three stages of maturity (56, 84 and 112 d). Dried and ground silage samples (5 mm) were incubated in nylon bags inside the rumen for 0, 6, 12, 24, 48, 72 and 96 h to estimate the kinetics of ruminal DM, CP and NDF degradation. The ruminal kinetic parameters of the silages from each treatment (56, 84 and 112 d of regrowth) in each animal (5 cows) were determined by the model: y = a + b(1 ? e?c(t?L)). The parameters generated by the model were analyzed as randomized block design, with grass regrowth age as the fixed effect and animal the as random effect (blocks). The grass silage ensiled with 56 days of regrowth had the highest (P<0.05) effective degradability of DM and NDF calculated for fractional rate of particulate passage of 2%/h. All silages had low CP soluble fraction (<25.4%) and effective degradability calculated for fractional rate of particulate passage of 2%/h (<40.1%). A greater (P<0.05) NDF lag time was observed for the silages ensiled with 84 and 112d compared to the silage produced with 56d of regrowth. The ruminal degradation kinetics of Andropogon gayanus grass silages showed that the grass ensiled with 56 days of regrowth had higher nutritional value. RESUMO - Maturity... Mostrar Tudo |
Palavras-Chave: |
Gamba grass; Maturity; Preserved forage; Ruminal degradability; Tropical grass. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122515/1/Cnpgl-2014-ArqBrasMedVetZ-In-situ.pdf
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Marc: |
LEADER 03871naa a2200277 a 4500 001 2013820 005 2022-08-12 008 2014 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1590/1678-6780$2DOI 100 1 $aRIBEIRO JÚNIOR, G. de O. 245 $aIn situ degradation kinetic of Andropogon gayanus grass silages harvested at three stages of maturity.$h[electronic resource] 260 $c2014 520 $aABSTRACT - Maturity is considered the primary factor affecting the nutritive value of forages. The aim of this study was to evaluate and compare dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) ruminal degradation kinetics of Andropogon gayanus grass silages harvested at three stages of maturity (56, 84 and 112 d). Dried and ground silage samples (5 mm) were incubated in nylon bags inside the rumen for 0, 6, 12, 24, 48, 72 and 96 h to estimate the kinetics of ruminal DM, CP and NDF degradation. The ruminal kinetic parameters of the silages from each treatment (56, 84 and 112 d of regrowth) in each animal (5 cows) were determined by the model: y = a + b(1 ? e?c(t?L)). The parameters generated by the model were analyzed as randomized block design, with grass regrowth age as the fixed effect and animal the as random effect (blocks). The grass silage ensiled with 56 days of regrowth had the highest (P<0.05) effective degradability of DM and NDF calculated for fractional rate of particulate passage of 2%/h. All silages had low CP soluble fraction (<25.4%) and effective degradability calculated for fractional rate of particulate passage of 2%/h (<40.1%). A greater (P<0.05) NDF lag time was observed for the silages ensiled with 84 and 112d compared to the silage produced with 56d of regrowth. The ruminal degradation kinetics of Andropogon gayanus grass silages showed that the grass ensiled with 56 days of regrowth had higher nutritional value. RESUMO - Maturity is considered the primary factor affecting the nutritive value of forages. The aim of this study was to evaluate and compare dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) ruminal degradation kinetics of Andropogon gayanus grass silages harvested at three stages of maturity (56, 84 and 112 d). Dried and ground silage samples (5 mm) were incubated in nylon bags inside the rumen for 0, 6, 12, 24, 48, 72 and 96 h to estimate the kinetics of ruminal DM, CP and NDF degradation. The ruminal kinetic parameters of the silages from each treatment (56, 84 and 112 d of regrowth) in each animal (5 cows) were determined by the model: y = a + b(1 ? e?c(t?L)). The parameters generated by the model were analyzed as randomized block design, with grass regrowth age as the fixed effect and animal the as random effect (blocks). The grass silage ensiled with 56 days of regrowth had the highest (P<0.05) effective degradability of DM and NDF calculated for fractional rate of particulate passage of 2%/h. All silages had low CP soluble fraction (<25.4%) and effective degradability calculated for fractional rate of particulate passage of 2%/h (<40.1%). A greater (P<0.05) NDF lag time was observed for the silages ensiled with 84 and 112d compared to the silage produced with 56d of regrowth. The ruminal degradation kinetics of Andropogon gayanus grass silages showed that the grass ensiled with 56 days of regrowth had higher nutritional value. 653 $aGamba grass 653 $aMaturity 653 $aPreserved forage 653 $aRuminal degradability 653 $aTropical grass 700 1 $aVELASCO, F. O. 700 1 $aFARIA JÚNIOR, W. G. de 700 1 $aTEIXEIRA, A. de M. 700 1 $aMACHADO, F. S. 700 1 $aMAGALHÃES, F. A. 700 1 $aJAYME, D. G. 700 1 $aGONÇALVES, L. C. 773 $tArquivo Brasileiro de Medicina Veterinária e Zootecnia$gv. 66, n. 6, p. 1883-1890, 2014.
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