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| Registros recuperados : 164 | |
| 42. |  | LIMA, M. A. de; CALEGARIO, F. F.; SANCHES, J. Qualidade e segurança de morangos produzidos em diferentes sistemas de produção. Horticultura Brasileira, Brasília, DF, v. 30, n. 2, p. S7560-S7567, jul. 2012. Suplemento. Edição dos Anais do 52º Congresso Brasileiro de Olericultura, Salvador, jul. 2012.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 53. | | PESSOA, M. C. P. Y.; FERRAZ, J. M. G.; GATTAZ, N. C.; LIMA, M. A. de. Subsídios para a escolha de indicadores de sustentabilidade. In: MARQUES, J. F.; SKORUPA, L. A.; FERRAZ, J. M. G. (Ed.). Indicadores de sustentabilidade em agroecossistemas. Jaguariúna: Embrapa Meio Ambiente, 2003. 281 p. Parte I, cap.2, p. 36-58.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 54. | | LEITE, L. F. C.; PESSOA, M. C. P. Y.; LIMA, M. A. de; MADARI, B. E. Simuladores computacionais para o estudo da dinâmica de carbono e de nitrogênio e emissões de gases de efeito estufa em sistemas de produção agropecuária. In: LIMA, M. A.; BODDEY, R. M.; ALVES, B. J. R.; MACHADO, P. L. O. de A.; URQUIAGA, S. (Ed.). Estoques de carbono e emissões de gases de efeito estufa na agropecuária brasileira. Brasília, DF: Embrapa; Jaguariúna: Embrapa Meio Ambiente, 2012. p. 271-326.| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Meio Ambiente; Embrapa Meio-Norte. |
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| 55. | | LEITE, L. F. C.; PESSOA, M. C. P. Y.; LIMA, M. A. de; MADARI, B. E. Simuladores computacionais para o estudo da dinâmica de carbono e de nitrogênio e emissões de gases de efeito estufa em sistemas de produção agropecuária. In: LIMA, M. A.; BODDEY, R. M.; ALVES, B. J. R.; MACHADO, P. L. O. de A.; URQUIAGA, S. (Ed.). Estoques de carbono e emissões de gases de efeito estufa na agropecuária brasileira. 3. ed. rev. Brasília, DF: Embrapa, 2015. p. 267-322. il. Color.| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Meio-Norte. |
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| Registros recuperados : 164 | |
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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 / Nota Técnica |
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Autoria: |
PRIMAVESI, O.; FRIGHETTO, R. T. S.; PEDREIRA, M. S.; LIMA, M. A. de; BERCHIELLI, T. T. |
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Afiliação: |
OTO PRIMAVESI, CCPSE; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; M. S. PEDREIRA, UESB/DTRA; MAGDA APARECIDA DE LIMA, CNPMA; T. T. BERCHIELLI, FCAV-Unesp. |
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Título: |
Methane emission from grazing dairy cattle in tropical Brasil: mitigation by improving production. |
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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. 349-355. |
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Idioma: |
Inglês |
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Conteúdo: |
Experiments were carried out on tropical grass pasture, in summer 2002, to find out possible mitigation options to reduce methane emission using different categories of grazing dairy cattle breeds. Methane emission was measured using the SF6 tracer technique. Experimental design was a block distribution in time, along four consecutive weeks, five days a week, at 12-hour intervals, employing four animal categories - lactating and dry cows on pastures with nitrogen fertilization and heifers on pastures with and without fertilization - of pure Holstein and 3/4 breeds (B. taurus x B. indicus): lactating Hostein cows in 1 of 33 resting days rotated grazing fertilized Panicum maximum with 15% crude protein (CP), 64% neutral detergent fiber (NDF) and 54% ?in vitro? organic matter digestibility (IVOMD) plus 1 kg concentrate with 20% CP for each three liter milk surplus above 10 liters; dry cows and heifers of both breeds grazing N-fertilized grass P. maximum, lactating Zebu crosbred on Nfertilized Brachiaria decumbens, and heifers of both breeds grazing unfertilized B. decumbens extensively managed, with 6.5% CP, 72% NDF and 37% IVOMD, similar to the most representative cattle production systems in Brazil. These experiments were carried out in summer (rainy season) with offer of good quality grass forage. Data indicate that methane emission rates of cattle on tropical grass pastures are higher than those on temperate forages, perhaps due to higher fiber content. Data also suggest that improvement of production potential of dairy cattle may reduce methane emission per product unit in Brazilian summer grazing conditions. Concentrate use equal or lower than 40% of dry matter intake did increase methane emission per animal but reduce per unit of production. MenosExperiments were carried out on tropical grass pasture, in summer 2002, to find out possible mitigation options to reduce methane emission using different categories of grazing dairy cattle breeds. Methane emission was measured using the SF6 tracer technique. Experimental design was a block distribution in time, along four consecutive weeks, five days a week, at 12-hour intervals, employing four animal categories - lactating and dry cows on pastures with nitrogen fertilization and heifers on pastures with and without fertilization - of pure Holstein and 3/4 breeds (B. taurus x B. indicus): lactating Hostein cows in 1 of 33 resting days rotated grazing fertilized Panicum maximum with 15% crude protein (CP), 64% neutral detergent fiber (NDF) and 54% ?in vitro? organic matter digestibility (IVOMD) plus 1 kg concentrate with 20% CP for each three liter milk surplus above 10 liters; dry cows and heifers of both breeds grazing N-fertilized grass P. maximum, lactating Zebu crosbred on Nfertilized Brachiaria decumbens, and heifers of both breeds grazing unfertilized B. decumbens extensively managed, with 6.5% CP, 72% NDF and 37% IVOMD, similar to the most representative cattle production systems in Brazil. These experiments were carried out in summer (rainy season) with offer of good quality grass forage. Data indicate that methane emission rates of cattle on tropical grass pastures are higher than those on temperate forages, perhaps due to higher fiber content. Data also suggest th... Mostrar Tudo |
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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/163316/1/Primavesi-methane.pdf
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Marc: |
LEADER 02443nam a2200181 a 4500
001 1015074
005 2017-09-05
008 2003 bl uuuu u00u1 u #d
100 1 $aPRIMAVESI, O.
245 $aMethane emission from grazing dairy cattle in tropical Brasil$bmitigation by improving production.$h[electronic resource]
260 $aIn: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 349-355.$c2003
520 $aExperiments were carried out on tropical grass pasture, in summer 2002, to find out possible mitigation options to reduce methane emission using different categories of grazing dairy cattle breeds. Methane emission was measured using the SF6 tracer technique. Experimental design was a block distribution in time, along four consecutive weeks, five days a week, at 12-hour intervals, employing four animal categories - lactating and dry cows on pastures with nitrogen fertilization and heifers on pastures with and without fertilization - of pure Holstein and 3/4 breeds (B. taurus x B. indicus): lactating Hostein cows in 1 of 33 resting days rotated grazing fertilized Panicum maximum with 15% crude protein (CP), 64% neutral detergent fiber (NDF) and 54% ?in vitro? organic matter digestibility (IVOMD) plus 1 kg concentrate with 20% CP for each three liter milk surplus above 10 liters; dry cows and heifers of both breeds grazing N-fertilized grass P. maximum, lactating Zebu crosbred on Nfertilized Brachiaria decumbens, and heifers of both breeds grazing unfertilized B. decumbens extensively managed, with 6.5% CP, 72% NDF and 37% IVOMD, similar to the most representative cattle production systems in Brazil. These experiments were carried out in summer (rainy season) with offer of good quality grass forage. Data indicate that methane emission rates of cattle on tropical grass pastures are higher than those on temperate forages, perhaps due to higher fiber content. Data also suggest that improvement of production potential of dairy cattle may reduce methane emission per product unit in Brazilian summer grazing conditions. Concentrate use equal or lower than 40% of dry matter intake did increase methane emission per animal but reduce per unit of production.
650 $aGado
650 $aMetano
700 1 $aFRIGHETTO, R. T. S.
700 1 $aPEDREIRA, M. S.
700 1 $aLIMA, M. A. de
700 1 $aBERCHIELLI, T. T.
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Embrapa Meio Ambiente (CNPMA) |
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