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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
21/12/2020 |
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Data da última atualização: |
22/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SAKAMOTO, L. S.; BERNDT, A.; PEDROSO, A. de F.; LEMES, A. P.; AZENHA, M. V.; ALVES, T. C.; RODRIGUES, P. H. M.; CORTE, R. R.; LEME, P. R.; OLIVEIRA, P. P. A. |
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Afiliação: |
Leandro S. Sakamoto, USP; ALEXANDRE BERNDT, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; Amanda P. Lemes, USP; Mariana V. Azenha, USP; TERESA CRISTINA ALVES, CPPSE; Paulo H. M. Rodrigues, USP; Rosana R. Corte, USP; Paulo R. Leme, USP; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE. |
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Título: |
Pasture intensification in beef cattle production can affect methane emission intensity. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 98, n. 10, p. 1?15, sep. 2020. |
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DOI: |
10.1093/jas/skaa309 |
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Idioma: |
Inglês |
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Conteúdo: |
Increasing greenhouse gas (GHG) emissions from anthropogenic activities have contributed to global warming and consequently to climate change. Among all sources of emissions, the agricultural sector accounts for just under a quarter, mainly because of the intensification of food production systems necessary to supply the growing demand of the population. As ruminal fermentation is the largest source of methane emission in the livestock industry, emission by cattle has become the focus of studies. The aim of this study was to evaluate enteric methane emission and emission intensities of Nellore cattle at different ages submitted to levels of intensification of the grazing system. Twenty-four animals per cycle (age of 21.8 and 13.1 mo in cycles 1 and 2, respectively) were randomly distributed across different grazing systems: irrigated pasture with a high stocking rate (IHS), dryland pasture with a high stocking rate (DHS), recovering dryland pasture with a moderate stocking rate (DMS), and degraded pasture with a low stocking rate (DP). Methane emission was measured using the sulfur hexafluoride technique in each season of the cycle. Intensive systems provided higher yields of good-quality forage as well as superior animal performance when compared with DP. Methane yields were different between seasons and cycles. Methane emissions per average daily weight gain and dry matter digestible intake were different between treatments. Differences in the results were observed when they were analyzed per hectare, with the highest gain yield (P = 0.0134), stocking rate, weight gain, carcass production, and total methane emission (P < 0.0001) being found for the intensive systems. There were no differences in emissions per weight gain or carcass production between production systems, while a difference was observed between cycles (P = 0.0189 and P = 0.0255, respectively), resulting in lower emission intensities for younger animals. We conclude that more intensive systems resulted in a higher kilograms production of carcass per hectare; however, animals at 19 mo of age raised in the IHS and DMS systems had a lower emission intensity in kilogram of CO2-eq. per kilogram of carcass. Moderate intensification (DMS) using animals at about 19 mo of age might be an effective strategy to mitigate GHG emissions from Brazilian tropical pastures. Further studies are needed to understand the relationship between increasing productivity and decreasing environmental impacts, especially methane emission from ruminants. MenosIncreasing greenhouse gas (GHG) emissions from anthropogenic activities have contributed to global warming and consequently to climate change. Among all sources of emissions, the agricultural sector accounts for just under a quarter, mainly because of the intensification of food production systems necessary to supply the growing demand of the population. As ruminal fermentation is the largest source of methane emission in the livestock industry, emission by cattle has become the focus of studies. The aim of this study was to evaluate enteric methane emission and emission intensities of Nellore cattle at different ages submitted to levels of intensification of the grazing system. Twenty-four animals per cycle (age of 21.8 and 13.1 mo in cycles 1 and 2, respectively) were randomly distributed across different grazing systems: irrigated pasture with a high stocking rate (IHS), dryland pasture with a high stocking rate (DHS), recovering dryland pasture with a moderate stocking rate (DMS), and degraded pasture with a low stocking rate (DP). Methane emission was measured using the sulfur hexafluoride technique in each season of the cycle. Intensive systems provided higher yields of good-quality forage as well as superior animal performance when compared with DP. Methane yields were different between seasons and cycles. Methane emissions per average daily weight gain and dry matter digestible intake were different between treatments. Differences in the results were observed when th... Mostrar Tudo |
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Palavras-Chave: |
Enteric fermentation; Sustainability. |
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Thesagro: |
Bos Indicus; Gado Nelore. |
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Thesaurus Nal: |
Grasslands; Sulfur hexafluoride. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03439naa a2200313 a 4500
001 2128493
005 2020-12-22
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1093/jas/skaa309$2DOI
100 1 $aSAKAMOTO, L. S.
245 $aPasture intensification in beef cattle production can affect methane emission intensity.$h[electronic resource]
260 $c2020
520 $aIncreasing greenhouse gas (GHG) emissions from anthropogenic activities have contributed to global warming and consequently to climate change. Among all sources of emissions, the agricultural sector accounts for just under a quarter, mainly because of the intensification of food production systems necessary to supply the growing demand of the population. As ruminal fermentation is the largest source of methane emission in the livestock industry, emission by cattle has become the focus of studies. The aim of this study was to evaluate enteric methane emission and emission intensities of Nellore cattle at different ages submitted to levels of intensification of the grazing system. Twenty-four animals per cycle (age of 21.8 and 13.1 mo in cycles 1 and 2, respectively) were randomly distributed across different grazing systems: irrigated pasture with a high stocking rate (IHS), dryland pasture with a high stocking rate (DHS), recovering dryland pasture with a moderate stocking rate (DMS), and degraded pasture with a low stocking rate (DP). Methane emission was measured using the sulfur hexafluoride technique in each season of the cycle. Intensive systems provided higher yields of good-quality forage as well as superior animal performance when compared with DP. Methane yields were different between seasons and cycles. Methane emissions per average daily weight gain and dry matter digestible intake were different between treatments. Differences in the results were observed when they were analyzed per hectare, with the highest gain yield (P = 0.0134), stocking rate, weight gain, carcass production, and total methane emission (P < 0.0001) being found for the intensive systems. There were no differences in emissions per weight gain or carcass production between production systems, while a difference was observed between cycles (P = 0.0189 and P = 0.0255, respectively), resulting in lower emission intensities for younger animals. We conclude that more intensive systems resulted in a higher kilograms production of carcass per hectare; however, animals at 19 mo of age raised in the IHS and DMS systems had a lower emission intensity in kilogram of CO2-eq. per kilogram of carcass. Moderate intensification (DMS) using animals at about 19 mo of age might be an effective strategy to mitigate GHG emissions from Brazilian tropical pastures. Further studies are needed to understand the relationship between increasing productivity and decreasing environmental impacts, especially methane emission from ruminants.
650 $aGrasslands
650 $aSulfur hexafluoride
650 $aBos Indicus
650 $aGado Nelore
653 $aEnteric fermentation
653 $aSustainability
700 1 $aBERNDT, A.
700 1 $aPEDROSO, A. de F.
700 1 $aLEMES, A. P.
700 1 $aAZENHA, M. V.
700 1 $aALVES, T. C.
700 1 $aRODRIGUES, P. H. M.
700 1 $aCORTE, R. R.
700 1 $aLEME, P. R.
700 1 $aOLIVEIRA, P. P. A.
773 $tJournal of Animal Science$gv. 98, n. 10, p. 1?15, sep. 2020.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| Registros recuperados : 72 | |
| 1. |  | SOUZA, L. C. de. Respostas do amendoim à calagem e adubaçao mineral. 2007. 117 f. Tese (Doutorado em Agronomia, Fitotecnia) - Universidade Federal do Ceará, Fortaleza. Orientador: João Bosco Pitombeira, UFC. Co-orientador: Lindbergue Araújo Crisóstomo, CNPAT.| Tipo: Orientação de Tese de Pós-Graduação | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 4. | | BOTTEGA, S. P.; SILVA, C. J. da; SOUZA, L. C. F. de. Avaliação da eficiência de herbicidas aplicados em pós - emergência na cultura do girassol. In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 4.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 7., 2010, Belo Horizonte. Biodiesel: inovação tecnológica e qualidade: anais: trabalhos científicos. Lavras: UFLA, 2010. v. 1 p. 563-564| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 5. | | BOTTEGA, S. P.; SILVA, C. J. da; SOUZA, L. C. F. de. Avaliação do comportamento agronômico do crambe em função de dois espaçamentos ente plantas. In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 4.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 7., 2010, Belo Horizonte. Biodiesel: inovação tecnológica e qualidade: anais: trabalhos científicos. Lavras: UFLA, 2010. v. 1 p. 551-552| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 8. | | CARDOSO, J. H.; SANTOS, J. S.; MEDEIROS, F. S.; SOUZA, L. C. da S. Estratégias eco-pedagógicas em processos de pesquisa-ação participativa: a experiência do projeto de sistemas agroflorestais no território da serra dos Tapes, RS. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUÇÃO, 11., 2016, Pelotas. Abordagem sistêmica e sustentabilidade: produção agropecuária, consumo e saúde: anais. Pelotas: Sociedade Brasileira de Sistemas de Produção, 2016. 1615 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 11. | | BOTTEGA, S. P.; SILVA, C. J. da; SOUZA, L. C. F. de. Comportamento de cultivares de girassol na região centro sul de Mato Grosso do Sul. In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 4.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 7., 2010, Belo Horizonte. Biodiesel: inovação tecnológica e qualidade: anais: trabalhos científicos. Lavras: UFLA, 2010. v. 2| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 16. | | GUILARDI, V.; RONQUIM, C. C.; SOUZA, L. C. N. DE; BIASI, N. S.; LEIVAS, J. F. Uso de geotecnologias para análise do avanço das áreas de cana-de-açúcar sobre áreas citrícolas nos municípios de Bebedouro e Matão, SP. In: WORKSHOP AGROENERGIA MATÉRIAS PRIMAS, 8., 2014, Ribeirão Preto. Anais... Ribeirão Preto: Apta; IAC, 2014. 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
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| 18. | | SOUZA, L. C.; AZEVEDO, F. I.; RIBEIRO, Z. M. A.; SOUZA, M. L.; VALICENTE, F. H.; CASTRO, M. E. B. Análise comparativa da mortalidade larval causada pelos isolados de SfMNPV (I-18, I-19) com branqueador óptico. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 13., 2008, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. Resumo 064. p. 109.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 19. | | SOUZA, L. C.; AZEVEDO, F. I.; RIBEIRO, Z. M. A.; SOUZA, M. L.; VALICENTE, F. H.; CASTRO, M. E. B. Análise comparativa da mortalidade larval causada pelos isolados de SfMNPV (I-18, I-19) com branqueador óptico. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 13., 2008, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. p. 108.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 72 | |
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