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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/10/2006 |
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Data da última atualização: |
05/09/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
DEMARCHI, J. J. A. A.; MANELLA, M. Q.; LOURENÇO, A. J.; ALLEONI, G. F.; FRIGHETTO, R. T. S.; PRIMAVESI, O.; LIMA, M. A. de. |
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Afiliação: |
J. J. A. A. DEMARCHI; M. Q. MANELLA; A. J. LOURENÇO; G. F. ALLEONI; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; Oto PRIMAVESI; MAGDA APARECIDA DE LIMA, CNPMA. |
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Título: |
Preliminary results on methane emission by nelore cattle in Brazil grazing Brachiaria brizantha cv. Marandu. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 80-84. |
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Idioma: |
Inglês |
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Conteúdo: |
Methane emissions by Nelore cattle grazing Brachiaria brizantha were monitored during winter (August) and spring (December) seasons. Sixteen Nelore steers with live weight (LW) varying from 206 to 525 kg, 196 to 538kg during winter and spring, respectively. Methane emissions were measured with the sulfur hexafluoride (SF6) technique. Mean methane emissions were 102.3 and 136.5 g/animal/day and 0.343 and 0.420 g/kg LW/day in winter and spring, respectively. The mean emissions showed 39.7 and 35.3 g/kgDDMI for winter and spring seasons, respectively. For both seasons a high associative effect was observed of CH4 emissions and live weight (r=0.78 and r= 0.97, respectively) and DDMI (r= 0.73 and r=0.96, respectively). Relative methane emissions (g/kgLW) were inversely correlated with LW (r=-0.75 and -0.87 for winter and wet seasons, respectively). Variations in observed methane production among seasons were related to forage quality that affects digestibility and consumption. |
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Thesagro: |
Gado; Metano. |
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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/163488/1/Demarchi-preliminary.pdf
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Marc: |
LEADER 01729nam a2200205 a 4500
001 1015067
005 2017-09-05
008 2003 bl uuuu u00u1 u #d
100 1 $aDEMARCHI, J. J. A. A.
245 $aPreliminary results on methane emission by nelore cattle in Brazil grazing Brachiaria brizantha cv. Marandu.$h[electronic resource]
260 $aIn: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 80-84.$c2003
520 $aMethane emissions by Nelore cattle grazing Brachiaria brizantha were monitored during winter (August) and spring (December) seasons. Sixteen Nelore steers with live weight (LW) varying from 206 to 525 kg, 196 to 538kg during winter and spring, respectively. Methane emissions were measured with the sulfur hexafluoride (SF6) technique. Mean methane emissions were 102.3 and 136.5 g/animal/day and 0.343 and 0.420 g/kg LW/day in winter and spring, respectively. The mean emissions showed 39.7 and 35.3 g/kgDDMI for winter and spring seasons, respectively. For both seasons a high associative effect was observed of CH4 emissions and live weight (r=0.78 and r= 0.97, respectively) and DDMI (r= 0.73 and r=0.96, respectively). Relative methane emissions (g/kgLW) were inversely correlated with LW (r=-0.75 and -0.87 for winter and wet seasons, respectively). Variations in observed methane production among seasons were related to forage quality that affects digestibility and consumption.
650 $aGado
650 $aMetano
700 1 $aMANELLA, M. Q.
700 1 $aLOURENÇO, A. J.
700 1 $aALLEONI, G. F.
700 1 $aFRIGHETTO, R. T. S.
700 1 $aPRIMAVESI, O.
700 1 $aLIMA, M. A. de
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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URL |
Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
20/02/2006 |
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Data da última atualização: |
20/02/2006 |
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Autoria: |
ALVES, C. R.; ASSIS, O. B. G. |
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Título: |
Surface modification of ceramic household filtration candles by SiO2 sol-gel film coatings. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY-PTECH, 2., 1999, Foz do Iguaçu. PTECH' 99: Powder technology: challenges for the next millenium. [S.l.]: Associação Brasileira de Cerâmica, 1999. Não paginado, ref. CO45. |
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Idioma: |
Inglês |
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Conteúdo: |
In this work we used the sol-gel technique to obtain SiO2 film onto commercial household ceramic filter candles. The main aim here is to increment the wetting characteristics of these elements by increasing of Si density on the pore's surfaces. Since the number of silanois sites (SiOH) can define the degree of hydrophilization, these sites can be chemically activated to become appropriated as substrate for the immobilization of organic agents. |
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Palavras-Chave: |
EDX; SEM; SiOH; TMOS. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01115naa a2200181 a 4500
001 1029483
005 2006-02-20
008 1999 bl --- 0-- u #d
100 1 $aALVES, C. R.
245 $aSurface modification of ceramic household filtration candles by SiO2 sol-gel film coatings.
260 $c1999
520 $aIn this work we used the sol-gel technique to obtain SiO2 film onto commercial household ceramic filter candles. The main aim here is to increment the wetting characteristics of these elements by increasing of Si density on the pore's surfaces. Since the number of silanois sites (SiOH) can define the degree of hydrophilization, these sites can be chemically activated to become appropriated as substrate for the immobilization of organic agents.
653 $aEDX
653 $aSEM
653 $aSiOH
653 $aTMOS
700 1 $aASSIS, O. B. G.
773 $tIn: INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY-PTECH, 2., 1999, Foz do Iguaçu. PTECH' 99: Powder technology: challenges for the next millenium. [S.l.]: Associação Brasileira de Cerâmica, 1999. Não paginado, ref. CO45.
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