Ruminal methane emission by dairy cattle in Southeast Brazil
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/579298 https://doi.org/10.1590/S0103-90162009000600004 |
Resumo: | 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. |
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Ruminal methane emission by dairy cattle in Southeast BrazilManejo alimentarGrupo genéticoHexafluoreto de enxofreRuminal 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.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.PEDREIRA, M. dos S.PRIMAVESI, O. M. A. S. P. R.LIMA, M. A. deFRIGHETTO, R. T. S.OLIVEIRA, S. G. deBERCHIELLI, T. T.2023-04-12T13:41:26Z2023-04-12T13:41:26Z2010-01-042009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleScientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, dec. 2009.http://www.alice.cnptia.embrapa.br/alice/handle/doc/579298https://doi.org/10.1590/S0103-90162009000600004enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2023-04-12T13:41:26Zoai:www.alice.cnptia.embrapa.br:doc/579298Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542023-04-12T13:41:26falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542023-04-12T13:41:26Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Ruminal methane emission by dairy cattle in Southeast Brazil |
title |
Ruminal methane emission by dairy cattle in Southeast Brazil |
spellingShingle |
Ruminal methane emission by dairy cattle in Southeast Brazil PEDREIRA, M. dos S. Manejo alimentar Grupo genético Hexafluoreto de enxofre |
title_short |
Ruminal methane emission by dairy cattle in Southeast Brazil |
title_full |
Ruminal methane emission by dairy cattle in Southeast Brazil |
title_fullStr |
Ruminal methane emission by dairy cattle in Southeast Brazil |
title_full_unstemmed |
Ruminal methane emission by dairy cattle in Southeast Brazil |
title_sort |
Ruminal methane emission by dairy cattle in Southeast Brazil |
author |
PEDREIRA, M. dos S. |
author_facet |
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. |
author_role |
author |
author2 |
PRIMAVESI, O. M. A. S. P. R. LIMA, M. A. de FRIGHETTO, R. T. S. OLIVEIRA, S. G. de BERCHIELLI, T. T. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
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. |
dc.contributor.author.fl_str_mv |
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. |
dc.subject.por.fl_str_mv |
Manejo alimentar Grupo genético Hexafluoreto de enxofre |
topic |
Manejo alimentar Grupo genético Hexafluoreto de enxofre |
description |
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. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2010-01-04 2023-04-12T13:41:26Z 2023-04-12T13:41:26Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, dec. 2009. http://www.alice.cnptia.embrapa.br/alice/handle/doc/579298 https://doi.org/10.1590/S0103-90162009000600004 |
identifier_str_mv |
Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, dec. 2009. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/579298 https://doi.org/10.1590/S0103-90162009000600004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503543102636032 |