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Registro Completo |
Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Cerrados; Embrapa Unidades Centrais. |
Data corrente: |
23/09/1998 |
Data da última atualização: |
15/04/2011 |
Autoria: |
CARVALHO, E. J. M.; COSTA, M. P. da; VELOSO, C. A. C. |
Afiliação: |
EDUARDO JORGE MAKLOUF CARVALHO, CPATU; MILTON PAULINO DA COSTA, CPATU; CARLOS ALBERTO COSTA VELOSO, CPATU. |
Título: |
Avaliação da matéria orgânica e de parâmetros físico-hídricos de um Latossolo Amarelo sob diferentes sistemas de manejo do dendezeiro, em Capitão Poço, Pará. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
Belém, PA: Embrapa Amazônia Oriental, 1997. |
Páginas: |
28 p. |
Série: |
(Embrapa Amazônia Oriental. Boletim de pesquisa, 178). |
Idioma: |
Português |
Conteúdo: |
Estudo do efeito de sistemas de manejo para a cultura do dende sobre a materia organica e algumas propriedades fisico-hidricas do solo. No experimento foram aplicados os seguintes manejos: sem leguminosa, sem adubacao (SL-SA); sem leguminosa, com adubacao (SL-CA); com leguminosa, sem adubacao (CL-SA); com leguminosa, com adubacao (CL-CA). Para efeito de comparacao da materia organica e de algumas propriedades fisico-hidricas, foi utilizada, tambem, uma parcela de floresta primaria (mata) contigua ao ensaios. Com base nos resultados, pode-se verificar que: ocorreu elevacao da densidade do solo e diminuicao da porosidade total com o cultivo do dendezeiro, bem como reducao do teor de materia organica em s8%, em comparacao a area de floresta primaria; de modo geral, nao ocorreram diferencas nas propriedades fisicas e no teor de materia organica do solo entre os tratamentos com cultivo do dendezeiro, independente do uso de leguminosas e/ou adubacao. |
Palavras-Chave: |
Brasil; Chemicophysical proprerties soil; Cultivation; Cultivo; Mateéria orgânica; Para; Propriedade fisico-quimica do solo; Propriedade fisico-quimico; Propriedade físico-qumico; Soil chemicophysical properties. |
Thesagro: |
Dendê; Elaeis Guineensis; Física do Solo; Latossolo Amarelo; Manejo do Solo; Matéria Orgânica; Propriedade Físico-Química; Relação Solo-Água; Solo. |
Thesaurus Nal: |
Brazil; Ferralsols; organic matter; soil; soil management; soil types; soil water. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/32764/1/CPATU-BP178.pdf
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Marc: |
LEADER 02382nam a2200469 a 4500 001 1375017 005 2011-04-15 008 1997 bl uuuu u0uu1 u #d 100 1 $aCARVALHO, E. J. M. 245 $aAvaliação da matéria orgânica e de parâmetros físico-hídricos de um Latossolo Amarelo sob diferentes sistemas de manejo do dendezeiro, em Capitão Poço, Pará. 260 $aBelém, PA: Embrapa Amazônia Oriental$c1997 300 $a28 p. 490 $a(Embrapa Amazônia Oriental. Boletim de pesquisa, 178). 520 $aEstudo do efeito de sistemas de manejo para a cultura do dende sobre a materia organica e algumas propriedades fisico-hidricas do solo. No experimento foram aplicados os seguintes manejos: sem leguminosa, sem adubacao (SL-SA); sem leguminosa, com adubacao (SL-CA); com leguminosa, sem adubacao (CL-SA); com leguminosa, com adubacao (CL-CA). Para efeito de comparacao da materia organica e de algumas propriedades fisico-hidricas, foi utilizada, tambem, uma parcela de floresta primaria (mata) contigua ao ensaios. Com base nos resultados, pode-se verificar que: ocorreu elevacao da densidade do solo e diminuicao da porosidade total com o cultivo do dendezeiro, bem como reducao do teor de materia organica em s8%, em comparacao a area de floresta primaria; de modo geral, nao ocorreram diferencas nas propriedades fisicas e no teor de materia organica do solo entre os tratamentos com cultivo do dendezeiro, independente do uso de leguminosas e/ou adubacao. 650 $aBrazil 650 $aFerralsols 650 $aorganic matter 650 $asoil 650 $asoil management 650 $asoil types 650 $asoil water 650 $aDendê 650 $aElaeis Guineensis 650 $aFísica do Solo 650 $aLatossolo Amarelo 650 $aManejo do Solo 650 $aMatéria Orgânica 650 $aPropriedade Físico-Química 650 $aRelação Solo-Água 650 $aSolo 653 $aBrasil 653 $aChemicophysical proprerties soil 653 $aCultivation 653 $aCultivo 653 $aMateéria orgânica 653 $aPara 653 $aPropriedade fisico-quimica do solo 653 $aPropriedade fisico-quimico 653 $aPropriedade físico-qumico 653 $aSoil chemicophysical properties 700 1 $aCOSTA, M. P. da 700 1 $aVELOSO, C. A. C.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
13/08/2021 |
Data da última atualização: |
13/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SILVA, D. C. da; PEREIRA, L. G. R.; LIMA, J. A. M.; MACHADO, F. S.; FERREIRA, A. L.; TOMICH, T. R.; COELHO, S. G.; MAURICIO, R. M.; CAMPOS, M. M. |
Afiliação: |
DANIELI CABRAL DA SILVA, Universidade Estadual do Sudoeste da Bahia; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; JULIANA APARECIDA MELLO LIMA; FERNANDA SAMARINI MACHADO, CNPGL; ALEXANDRE LIMA FERREIRA; THIERRY RIBEIRO TOMICH, CNPGL; SANDRA GESTEIRA COELHO, Universidade Federal de Minas Gerais; ROGERIO MARTINS MAURICIO, Universidade Federal de São João del-Rei; MARIANA MAGALHAES CAMPOS, CNPGL. |
Título: |
Grouping crossbred Holstein x Gyr heifers according to different feed efficiency indexes and its effects on energy and nitrogen partitioning, blood metabolic variables and gas exchanges. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
PLoS ONE, v. 15, n. 9, e0238419, 2020. |
DOI: |
https://doi.org/10.1371/journal.pone.0238419 |
Idioma: |
Inglês |
Conteúdo: |
The objectives of this study were: i) to classify animals into groups of high and low feed efficiency (FE) using three FE indexes (Residual feed intake (RFI), Residual weight gain (RG) and Feed conversion efficiency (FCE)), and ii) to evaluate whether crossbreed Holstein x Gyr heifers divergent for FE indexes exhibit differences in nutrient intake and digestibility, energy partitioning, heat production, methane emissions, nitrogen partitioning and blood parameters. Thirty-five heifers were housed in a tie-stall, received ad libitum TMR (75:25, corn silage: concentrate) and were ranked and classified into high (HE) or low efficiency (LE) for RFI, RG and FCE. The number of animals for each HE group were 13 (< 0.5 standard deviation (SD) for RFI, 11 for RG and 11 for FCE (> 0.5 SD) and for the LE were 10 (> 0.5 SD) for RFI, 11 for RG and 12 for FCE (< 0.5 SD). Gas exchanges (O2 consumption, CO2 and CH4 production) in open-circuit respiratory chambers and whole tract digestibility trial was performed. A completely randomized experimental design was used and the data were analyzed by ANOVA and correlation study. High efficiency animals for RFI produced less CO2, consumed less O2 and had lower heat production (HP). Methane production was positively correlated with RFI. High efficiency RG had higher O2 consumption and CO2 production in relation to LE-RG. High efficiency FCE had greater NFC digestibility, higher positive energy balance (EB) and excreted (11.4 g/d) less nitrogen in urine. High efficiency RG and FCE groups emitted less CH4 per kg of weight gain than LE animals. Animals HE for RFI and FCE had lower β-hydroxybutyrate and higher glucose concentrations, respectively. The differences in intake, digestibility, energy and nitrogen partition, CH4 emission, blood metabolic variables and heat production between the HE and LE groups varied according to the efficiency indexes adopted. The HP (kcal/d/BW0.75) was lower for HE animals for RFI and FCE indexes. MenosThe objectives of this study were: i) to classify animals into groups of high and low feed efficiency (FE) using three FE indexes (Residual feed intake (RFI), Residual weight gain (RG) and Feed conversion efficiency (FCE)), and ii) to evaluate whether crossbreed Holstein x Gyr heifers divergent for FE indexes exhibit differences in nutrient intake and digestibility, energy partitioning, heat production, methane emissions, nitrogen partitioning and blood parameters. Thirty-five heifers were housed in a tie-stall, received ad libitum TMR (75:25, corn silage: concentrate) and were ranked and classified into high (HE) or low efficiency (LE) for RFI, RG and FCE. The number of animals for each HE group were 13 (< 0.5 standard deviation (SD) for RFI, 11 for RG and 11 for FCE (> 0.5 SD) and for the LE were 10 (> 0.5 SD) for RFI, 11 for RG and 12 for FCE (< 0.5 SD). Gas exchanges (O2 consumption, CO2 and CH4 production) in open-circuit respiratory chambers and whole tract digestibility trial was performed. A completely randomized experimental design was used and the data were analyzed by ANOVA and correlation study. High efficiency animals for RFI produced less CO2, consumed less O2 and had lower heat production (HP). Methane production was positively correlated with RFI. High efficiency RG had higher O2 consumption and CO2 production in relation to LE-RG. High efficiency FCE had greater NFC digestibility, higher positive energy balance (EB) and excreted (11.4 g/d) less nitrogen in u... Mostrar Tudo |
Palavras-Chave: |
Eficiência alimentar. |
Thesagro: |
Bovino; Gado Gir; Gado Holandês; Gado Mestiço; Novilho. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225157/1/Grouping-crossbred.pdf
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Marc: |
LEADER 02958naa a2200301 a 4500 001 2133541 005 2021-08-13 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1371/journal.pone.0238419$2DOI 100 1 $aSILVA, D. C. da 245 $aGrouping crossbred Holstein x Gyr heifers according to different feed efficiency indexes and its effects on energy and nitrogen partitioning, blood metabolic variables and gas exchanges.$h[electronic resource] 260 $c2020 520 $aThe objectives of this study were: i) to classify animals into groups of high and low feed efficiency (FE) using three FE indexes (Residual feed intake (RFI), Residual weight gain (RG) and Feed conversion efficiency (FCE)), and ii) to evaluate whether crossbreed Holstein x Gyr heifers divergent for FE indexes exhibit differences in nutrient intake and digestibility, energy partitioning, heat production, methane emissions, nitrogen partitioning and blood parameters. Thirty-five heifers were housed in a tie-stall, received ad libitum TMR (75:25, corn silage: concentrate) and were ranked and classified into high (HE) or low efficiency (LE) for RFI, RG and FCE. The number of animals for each HE group were 13 (< 0.5 standard deviation (SD) for RFI, 11 for RG and 11 for FCE (> 0.5 SD) and for the LE were 10 (> 0.5 SD) for RFI, 11 for RG and 12 for FCE (< 0.5 SD). Gas exchanges (O2 consumption, CO2 and CH4 production) in open-circuit respiratory chambers and whole tract digestibility trial was performed. A completely randomized experimental design was used and the data were analyzed by ANOVA and correlation study. High efficiency animals for RFI produced less CO2, consumed less O2 and had lower heat production (HP). Methane production was positively correlated with RFI. High efficiency RG had higher O2 consumption and CO2 production in relation to LE-RG. High efficiency FCE had greater NFC digestibility, higher positive energy balance (EB) and excreted (11.4 g/d) less nitrogen in urine. High efficiency RG and FCE groups emitted less CH4 per kg of weight gain than LE animals. Animals HE for RFI and FCE had lower β-hydroxybutyrate and higher glucose concentrations, respectively. The differences in intake, digestibility, energy and nitrogen partition, CH4 emission, blood metabolic variables and heat production between the HE and LE groups varied according to the efficiency indexes adopted. The HP (kcal/d/BW0.75) was lower for HE animals for RFI and FCE indexes. 650 $aBovino 650 $aGado Gir 650 $aGado Holandês 650 $aGado Mestiço 650 $aNovilho 653 $aEficiência alimentar 700 1 $aPEREIRA, L. G. R. 700 1 $aLIMA, J. A. M. 700 1 $aMACHADO, F. S. 700 1 $aFERREIRA, A. L. 700 1 $aTOMICH, T. R. 700 1 $aCOELHO, S. G. 700 1 $aMAURICIO, R. M. 700 1 $aCAMPOS, M. M. 773 $tPLoS ONE$gv. 15, n. 9, e0238419, 2020.
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Embrapa Gado de Leite (CNPGL) |
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