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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Gado de Corte; Embrapa Gado de Leite; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Pecuária Sul; Embrapa Semiárido; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
07/01/1991 |
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Data da última atualização: |
04/09/2003 |
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Autoria: |
ARAUJO, A. A. de. |
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Título: |
Principais gramíneas do Rio Grande do Sul: agrostologia rio-grandense. |
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Ano de publicação: |
1971 |
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Fonte/Imprenta: |
Porto Alegre: Sulina, 1971. |
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Páginas: |
255p. |
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Descrição Física: |
il. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Campos altos; Campos de varzea e banhado; Campos com rocha superficial; Campos em gramacao e gramados; Gramineas litoraneas; Rios, lagoas, acudes, sangas; Matos, capoes, restingas; Cultivos, tigueras, estradas; Glossario; Indice dos nomes latinos; Indice dos nomes comuns. |
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Palavras-Chave: |
Agrostologia; Agrotology; Brasil; Cultive; Cultivo; Gramíneas; Grass; Pasture; Rio Grande do Sul. |
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Thesagro: |
Gramínea; Legume; Pastagem. |
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Thesaurus Nal: |
Brazil; grasses; legumes. |
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Categoria do assunto: |
--
A Sistemas de Cultivo |
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Marc: |
LEADER 00981nam a2200301 a 4500
001 1403635
005 2003-09-04
008 1971 bl uuuu 00u1 u #d
100 1 $aARAUJO, A. A. de
245 $aPrincipais gramíneas do Rio Grande do Sul$bagrostologia rio-grandense.
260 $aPorto Alegre: Sulina$c1971
300 $a255p.$cil.
520 $aCampos altos; Campos de varzea e banhado; Campos com rocha superficial; Campos em gramacao e gramados; Gramineas litoraneas; Rios, lagoas, acudes, sangas; Matos, capoes, restingas; Cultivos, tigueras, estradas; Glossario; Indice dos nomes latinos; Indice dos nomes comuns.
650 $aBrazil
650 $agrasses
650 $alegumes
650 $aGramínea
650 $aLegume
650 $aPastagem
653 $aAgrostologia
653 $aAgrotology
653 $aBrasil
653 $aCultive
653 $aCultivo
653 $aGramíneas
653 $aGrass
653 $aPasture
653 $aRio Grande do Sul
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
04/01/2010 |
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Data da última atualização: |
15/03/2023 |
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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: |
PEDREIRA, M. dos S.; PRIMAVESI, O. M. A. S. P. R.; LIMA, M. A. de; FRIGHETTO, R. T. S.; OLIVEIRA, S. G. de; BERCHIELLI, T. T. |
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Afiliação: |
MÁRCIO DOS SANTOS PEDREIRA, UESB - ITAPETINGA, BA; ODO MARIA ARTUR S P R PRIMAVESI, CPPSE; MAGDA APARECIDA DE LIMA, CNPMA; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; SIMONE GISELE DE OLIVEIRA, UFPR - CURITIBA; TELMA TEREZINHA BERCHIELLI, UNESP - JABOTICABAL. |
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Título: |
Ruminal methane emission by dairy cattle in Southeast Brazil |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, dec. 2009. |
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DOI: |
https://doi.org/10.1590/S0103-90162009000600004 |
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Idioma: |
Inglês |
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Conteúdo: |
Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH4 and SF6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3 g day-1) than the Crossbred (264.2 g day-1). Lactating cows produced more methane (353.8 g day-1) than dry cows (268.8 g day-1) and heifers (222.6 g day-1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg-1) than the Crossbred (22.0 g kg-1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day-1, greater (p < 0.05) than that of heifers on unfertilized pasture (179.2 g day-1). Methane emission varied as function of animal category and management intensity of production system. MenosRuminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH4 and SF6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3 g day-1) than the Crossbred (264.2 g day-1). Lactating cows produced more methane (353.8 g day-1) than dry cows (268.8 g day-1) and heifers (222.6 g day-1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg-1) than the Crossbred (22.0 g kg-1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day-1, greater ... Mostrar Tudo |
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Palavras-Chave: |
Grupo genético; Hexafluoreto de enxofre; Manejo alimentar. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/38331/1/PROCI-2009.00289.pdf
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Marc: |
LEADER 02415naa a2200229 a 4500
001 1579298
005 2023-03-15
008 2009 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S0103-90162009000600004$2DOI
100 1 $aPEDREIRA, M. dos S.
245 $aRuminal methane emission by dairy cattle in Southeast Brazil$h[electronic resource]
260 $c2009
520 $aRuminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH4 and SF6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3 g day-1) than the Crossbred (264.2 g day-1). Lactating cows produced more methane (353.8 g day-1) than dry cows (268.8 g day-1) and heifers (222.6 g day-1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg-1) than the Crossbred (22.0 g kg-1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day-1, greater (p < 0.05) than that of heifers on unfertilized pasture (179.2 g day-1). Methane emission varied as function of animal category and management intensity of production system.
653 $aGrupo genético
653 $aHexafluoreto de enxofre
653 $aManejo alimentar
700 1 $aPRIMAVESI, O. M. A. S. P. R.
700 1 $aLIMA, M. A. de
700 1 $aFRIGHETTO, R. T. S.
700 1 $aOLIVEIRA, S. G. de
700 1 $aBERCHIELLI, T. T.
773 $tScientia Agricola, Piracicaba$gv. 66, n. 6, p. 742-750, dec. 2009.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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