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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 Florestas; Embrapa Pecuária Sudeste. |
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Data corrente: |
22/11/2017 |
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Data da última atualização: |
15/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PONTES, L. da S.; BARRO, R. S.; SAVIAN, J. V.; BERNDT, A.; MOLETTA, J. L.; PORFIRIO-DA-SILVA, V.; BAYER, C.; CARVALHO, P. C. de F. |
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Afiliação: |
Laíse da Silveira Pontes, IAPAR; Raquel Santiago Barro, UFRGS; Jean Victor Savian, UFRGS; ALEXANDRE BERNDT, CPPSE; José Luiz Moletta, IAPAR; VANDERLEY PORFIRIO DA SILVA, CNPF; Cimélio Bayer, UFRGS; Paulo César de Faccio Carvalho, UFRGS. |
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Título: |
Performance and methane emissions by beef heifer grazing in temperate pastures and in integrated crop-livestock systems: the effect of shade and nitrogen fertilization. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 253, p. 90-97, feb. 2018. |
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DOI: |
doi.org/10.1016/j.agee.2017.11.009 |
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Idioma: |
Inglês |
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Conteúdo: |
Methane (CH4) emissions from enteric fermentation by cattle are the main source of greenhouse gases in livestock systems, but scarce information is available on the effect of production scenarios on CH4 emissions. The objective of this study was to assess animal performance and CH4 emissions by beef heifers grazing in a mixed Lolium multiflorum ×Avena strigosa pasture in two different types of integrated systems, crop-livestock only (CL) or crop-livestock-tree (CLT), and with two nitrogen (N) supply levels (90 and 180 kg N ha−1, N90 and N180, respectively). The study was performed during the winter season (i.e., stocking season) over three years (2012?2014). Pasture shading by 6- to 8-year-old trees in the CLT system led to a reduction in the total annual herbage accumulation of approximately 2.6 Mg dry matter ha−1 (−51%) and a reduction in winter carrying capacity of 0.5 stock units ha−1 in comparison to the CL system. Average daily gain (ADG) was reduced by 32% in CLT compared to CL. Average CH4 emissions were 163 ± 9.12 g CH4 day−1 in heifers with an initial average live weight (LW) of approximately 250 kg. Emissions of CH4 per kg of LW did not differ between treatments (P > 0.05) with a mean of 0.58 ± 0.030 g kg−1. However, there were significant differences between treatments and among years when CH4 was expressed in g kg ADG−1 and kg ha−1 day−1. Per unit area, CH4 production ranged between 0.51 ± 0.05 (CLT N180) and 0.86 ± 0.12 kg ha−1 day−1 (CL N180). Possible strategies to reduce losses in animal production in the CLT systems are discussed, as well as the potential of C sequestration by woody biomass of eucalyptus trees to mitigate CH4 emissions. MenosMethane (CH4) emissions from enteric fermentation by cattle are the main source of greenhouse gases in livestock systems, but scarce information is available on the effect of production scenarios on CH4 emissions. The objective of this study was to assess animal performance and CH4 emissions by beef heifers grazing in a mixed Lolium multiflorum ×Avena strigosa pasture in two different types of integrated systems, crop-livestock only (CL) or crop-livestock-tree (CLT), and with two nitrogen (N) supply levels (90 and 180 kg N ha−1, N90 and N180, respectively). The study was performed during the winter season (i.e., stocking season) over three years (2012?2014). Pasture shading by 6- to 8-year-old trees in the CLT system led to a reduction in the total annual herbage accumulation of approximately 2.6 Mg dry matter ha−1 (−51%) and a reduction in winter carrying capacity of 0.5 stock units ha−1 in comparison to the CL system. Average daily gain (ADG) was reduced by 32% in CLT compared to CL. Average CH4 emissions were 163 ± 9.12 g CH4 day−1 in heifers with an initial average live weight (LW) of approximately 250 kg. Emissions of CH4 per kg of LW did not differ between treatments (P > 0.05) with a mean of 0.58 ± 0.030 g kg−1. However, there were significant differences between treatments and among years when CH4 was expressed in g kg ADG−1 and kg ha−1 day−1. Per unit area, CH4 production ranged between 0.51 ± 0.05 (CLT N180) and... Mostrar Tudo |
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Palavras-Chave: |
Black oat; C3 grasses; Eucalyptus dunnii; Gases de efeito estufa; ILPF; Italian ryegrass. |
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Thesagro: |
Avena Strigosa; Lolium Multiflorum; Metano; Pastagem; Pecuária. |
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Thesaurus Nal: |
Beef cattle; Greenhouse gases; Pastures. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02923naa a2200385 a 4500
001 2086617
005 2023-12-15
008 2018 bl uuuu u00u1 u #d
024 7 $adoi.org/10.1016/j.agee.2017.11.009$2DOI
100 1 $aPONTES, L. da S.
245 $aPerformance and methane emissions by beef heifer grazing in temperate pastures and in integrated crop-livestock systems$bthe effect of shade and nitrogen fertilization.$h[electronic resource]
260 $c2018
520 $aMethane (CH4) emissions from enteric fermentation by cattle are the main source of greenhouse gases in livestock systems, but scarce information is available on the effect of production scenarios on CH4 emissions. The objective of this study was to assess animal performance and CH4 emissions by beef heifers grazing in a mixed Lolium multiflorum ×Avena strigosa pasture in two different types of integrated systems, crop-livestock only (CL) or crop-livestock-tree (CLT), and with two nitrogen (N) supply levels (90 and 180 kg N ha−1, N90 and N180, respectively). The study was performed during the winter season (i.e., stocking season) over three years (2012?2014). Pasture shading by 6- to 8-year-old trees in the CLT system led to a reduction in the total annual herbage accumulation of approximately 2.6 Mg dry matter ha−1 (−51%) and a reduction in winter carrying capacity of 0.5 stock units ha−1 in comparison to the CL system. Average daily gain (ADG) was reduced by 32% in CLT compared to CL. Average CH4 emissions were 163 ± 9.12 g CH4 day−1 in heifers with an initial average live weight (LW) of approximately 250 kg. Emissions of CH4 per kg of LW did not differ between treatments (P > 0.05) with a mean of 0.58 ± 0.030 g kg−1. However, there were significant differences between treatments and among years when CH4 was expressed in g kg ADG−1 and kg ha−1 day−1. Per unit area, CH4 production ranged between 0.51 ± 0.05 (CLT N180) and 0.86 ± 0.12 kg ha−1 day−1 (CL N180). Possible strategies to reduce losses in animal production in the CLT systems are discussed, as well as the potential of C sequestration by woody biomass of eucalyptus trees to mitigate CH4 emissions.
650 $aBeef cattle
650 $aGreenhouse gases
650 $aPastures
650 $aAvena Strigosa
650 $aLolium Multiflorum
650 $aMetano
650 $aPastagem
650 $aPecuária
653 $aBlack oat
653 $aC3 grasses
653 $aEucalyptus dunnii
653 $aGases de efeito estufa
653 $aILPF
653 $aItalian ryegrass
700 1 $aBARRO, R. S.
700 1 $aSAVIAN, J. V.
700 1 $aBERNDT, A.
700 1 $aMOLETTA, J. L.
700 1 $aPORFIRIO-DA-SILVA, V.
700 1 $aBAYER, C.
700 1 $aCARVALHO, P. C. de F.
773 $tAgriculture, Ecosystems and Environment$gv. 253, p. 90-97, feb. 2018.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| 11. |  | RIBEIRO, M. B. M.; FARINAS, C. S. Biomassa fúngica como bioadsorvente para a remoção de compostos inibidores do processo de produção do etanol 2G. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 4., 2019, São Carlos, SP. Ciência, inovação e mercado: anais. São Carlos, SP: Embrapa Instrumentação, 2019. Editores: Paulino Ribeiro Villas-Boas, Maria Alice Martins, Débora Marcondes Bastos Pereira Milori, Ladislau Martin Neto. SIAGRO 2019. 633-636| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 13. | | DUTRA, J. F.; FARINAS, C. S. Avaliação da atividade de enzimas de interesse agroindustrial. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 10., 2018, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2018. p. 41. Editores técnicos: Daniel Souza Corrêa, Elaine Cristina Paris, Maria Alice Martins, Paulino Ribeiro Villas Boas, Wilson Tadeu Lopes da Silva. (Embrapa Instrumentação. Documentos, 68). (Embrapa Instrumentação. Documentos, 68).| Tipo: Resumo em Anais de Congresso |
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| 15. | | FREITAS, J. V.; FARINAS, C. S. Adsorção de compostos fenólicos em fuligem de bagaço de cana-de-açúcar. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 9., 2017, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação, 2017. p. 28. Editores técnicos: Alexandre Berndt, Ana Rita de Araujo Nogueira, Bianca Baccili Zanotto Vigna, Juliana Gonçalves Costa, Lea Chapaval, Manuel Antonio Chagas Jacinto, Patricia Menezes Santos. (Embrapa Pecuária Sudeste, Documentos, 126).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | VASCONCELLOS, V. M.; FARINAS, C. S. Estudo da celulose bacteriana produzida por G. hansenni submetida a diferentes técnicas de secagem. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 8., 2016, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2016. p.82. Editores técnicos: Wilson Tadeu Lopes da Silva, José Manoel Marconcini, Maria Alice Martins, Lucimara Aparecida Forato, Paulino Ribeiro Villas Boas. (Embrapa Instrumentação. Documentos, 61).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 418 | |
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