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| Registros recuperados : 28 | |
| 18. |  | FUKUDA, W. M. G.; CALDAS, R. C.; MAGALHÃES, J. A.; CAVALCANTI, J.; TAVARES, J. A.; IGLESIAS, C.; HERNANDEZ ROMERO, L. A. Análise de estabilidade de variedades em mandioca selecionadas em provas participativas com produtores do semi-árido do Nordeste do Brasil. Revista Brasileira de Mandioca, v. 18, n. 1, p. 13-18, out. 2005.| Biblioteca(s): Embrapa Semiárido. |
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| 19. | | FUKUDA, W. M. G.; CALDAS, R. C.; MAGALHÃES, J. A.; CAVALCANTI, J.; TAVARES, J. A.; IGLESIAS, C.; ROMERO, L. A. H. Análise de estabilidade de variedades de mandioca selecionadas em provas participativas com produtores do Semi-Árido no Nordeste do Brasil. Revista Brasileira de Mandioca, Cruz das Almas, v.18, n. 1, p. 13-18, out. 2005.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 20. | | NASCIMENTO, C. F. M. do; BERNDT, A.; ROMERO, L. A.; MEYER, P. M.; FRIGHETTO, R. T. S.; DEMARCHI, J. J. A. de A.; RODRIGUES, P. H. M. Methane emission of cattle fed Urochloa brizantha hay harvested at different stages. Journal of Agricultural Science, Toronto, v. 8, n. 1 p. 163-174, 2016.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 28 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Pecuária Sudeste. |
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Data corrente: |
10/10/2016 |
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Data da última atualização: |
03/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
DEMARCHI, J. J. A. de A.; MANELLA, M. Q.; PRIMAVESI, O. M. A. S. P. R.; FRIGHETTO, R. T. S.; ROMERO, L. A.; BERNDT, A.; LIMA, M. A. de. |
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Afiliação: |
JOÃO JOSÉ ASSUMPÇÃO DE ABREU DEMARCHI, IZ - Nova Odessa; MARCELO DE QUEIROZ MANELLA, Phibro Animal Health; ODO M A S P R PRIMAVESI; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; LAURA ALEXANDRA ROMERO, FMVZ-USP; ALEXANDRE BERNDT, CPPSE; MAGDA APARECIDA DE LIMA, CNPMA. |
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Título: |
Effect of seasons on enteric methane emissions from cattle grazing Urochloa brizantha. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Agricultural Science, Toronto, v. 8, n. 4, p. 106-115, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objective of this study was to evaluate the effect of seasons under a tropical climate on forage quality, aswell the effect of an Urochloa brizantha cv. Marandu grazing system on enteric methane (CH4) emissions fromNellore cattle in the Southeast region of Brazil. Sixteen Nellore steers (18 months old and initial weight 318.0 ± 116.59 kg of LW; final weight 469 ± 98.50 kg of LW) were used for a trial period of 10 months, with four collection periods in winter (August), spring (December), summer (February) and autumn (May). Each collection period consisted of 28 days, corresponding to the representative month of each season where the last six days were designed for methane data collection. Animals were randomly distributed within 16 experimental plots, distributed in four random blocks over four trial periods. CH4 emissions were determined using the sulphur hexafluoride (SF6) tracer gas technique measured by gas chromatography and fluxes of CH4 calculated. The forage quality was characterized by higher CP and IVDMD and lower lignin contents in spring, differing specially from winter forage. Average CH4 emissions were between 102.49 and 220.91 g d-1 (37.4 to 80.6 kg ani-1 yr-1); 16.89 and 30.20 g kg-1 DMI; 1.35 and 2.90 Mcal ani-1 d-1; 0.18 and 0.57 g kg-1 ADG-1 and 5.05 and 8.76% of GE. Emissions in terms of CO2 equivalents were between 4.68 and 14.22 g CO2-eq-1 g-1 ADG. Variations in CH4 emissions were related to seasonal effect on the forage quality and variations in dry matter intake. MenosAbstract: The objective of this study was to evaluate the effect of seasons under a tropical climate on forage quality, aswell the effect of an Urochloa brizantha cv. Marandu grazing system on enteric methane (CH4) emissions fromNellore cattle in the Southeast region of Brazil. Sixteen Nellore steers (18 months old and initial weight 318.0 ± 116.59 kg of LW; final weight 469 ± 98.50 kg of LW) were used for a trial period of 10 months, with four collection periods in winter (August), spring (December), summer (February) and autumn (May). Each collection period consisted of 28 days, corresponding to the representative month of each season where the last six days were designed for methane data collection. Animals were randomly distributed within 16 experimental plots, distributed in four random blocks over four trial periods. CH4 emissions were determined using the sulphur hexafluoride (SF6) tracer gas technique measured by gas chromatography and fluxes of CH4 calculated. The forage quality was characterized by higher CP and IVDMD and lower lignin contents in spring, differing specially from winter forage. Average CH4 emissions were between 102.49 and 220.91 g d-1 (37.4 to 80.6 kg ani-1 yr-1); 16.89 and 30.20 g kg-1 DMI; 1.35 and 2.90 Mcal ani-1 d-1; 0.18 and 0.57 g kg-1 ADG-1 and 5.05 and 8.76% of GE. Emissions in terms of CO2 equivalents were between 4.68 and 14.22 g CO2-eq-1 g-1 ADG. Variations in CH4 emissions were related to seasonal effect on the forage quality and variat... Mostrar Tudo |
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Palavras-Chave: |
CO2-eq; Enteric methane; Nelore. |
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Thesagro: |
Fermentação; Gado de corte; Gramínea forrageira; Metano; Nutrição animal; Ruminação. |
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Thesaurus NAL: |
Beef cattle; Gas emissions; Methane; Nellore; Sulfur hexafluoride; Urochloa brizantha. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/148565/1/2016AP03.pdf
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Marc: |
LEADER 02579naa a2200373 a 4500
001 2054343
005 2017-03-03
008 2016 bl uuuu u00u1 u #d
100 1 $aDEMARCHI, J. J. A. de A.
245 $aEffect of seasons on enteric methane emissions from cattle grazing Urochloa brizantha.$h[electronic resource]
260 $c2016
520 $aAbstract: The objective of this study was to evaluate the effect of seasons under a tropical climate on forage quality, aswell the effect of an Urochloa brizantha cv. Marandu grazing system on enteric methane (CH4) emissions fromNellore cattle in the Southeast region of Brazil. Sixteen Nellore steers (18 months old and initial weight 318.0 ± 116.59 kg of LW; final weight 469 ± 98.50 kg of LW) were used for a trial period of 10 months, with four collection periods in winter (August), spring (December), summer (February) and autumn (May). Each collection period consisted of 28 days, corresponding to the representative month of each season where the last six days were designed for methane data collection. Animals were randomly distributed within 16 experimental plots, distributed in four random blocks over four trial periods. CH4 emissions were determined using the sulphur hexafluoride (SF6) tracer gas technique measured by gas chromatography and fluxes of CH4 calculated. The forage quality was characterized by higher CP and IVDMD and lower lignin contents in spring, differing specially from winter forage. Average CH4 emissions were between 102.49 and 220.91 g d-1 (37.4 to 80.6 kg ani-1 yr-1); 16.89 and 30.20 g kg-1 DMI; 1.35 and 2.90 Mcal ani-1 d-1; 0.18 and 0.57 g kg-1 ADG-1 and 5.05 and 8.76% of GE. Emissions in terms of CO2 equivalents were between 4.68 and 14.22 g CO2-eq-1 g-1 ADG. Variations in CH4 emissions were related to seasonal effect on the forage quality and variations in dry matter intake.
650 $aBeef cattle
650 $aGas emissions
650 $aMethane
650 $aNellore
650 $aSulfur hexafluoride
650 $aUrochloa brizantha
650 $aFermentação
650 $aGado de corte
650 $aGramínea forrageira
650 $aMetano
650 $aNutrição animal
650 $aRuminação
653 $aCO2-eq
653 $aEnteric methane
653 $aNelore
700 1 $aMANELLA, M. Q.
700 1 $aPRIMAVESI, O. M. A. S. P. R.
700 1 $aFRIGHETTO, R. T. S.
700 1 $aROMERO, L. A.
700 1 $aBERNDT, A.
700 1 $aLIMA, M. A. de
773 $tJournal of Agricultural Science, Toronto$gv. 8, n. 4, p. 106-115, 2016.
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Embrapa Meio Ambiente (CNPMA) |
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