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| Registros recuperados : 71 | |
| 3. |  | BEELEN, P. M. G.; BERCHIELLI, T. T.; ARAUJO FILHO, J. A. de; OLIVEIRA, S. G. de. Characterization of condensed tannins from native legumes of the brazilian Northeastern Semi-arid. Scientia Agricola, Piracicaba, v. 63, n. 6, p. 522-528, nov./dez., 2006.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 9. | | PEDREIRA, M. S.; PRIMAVESI, O.; LIMA, M. A. de; FRIGHETTO, R. T. S.; OLIVEIRA, S. G. de; BERCHIELLI, T. T. Ruminal methane emission by dairy cattle in southeast Brazil. Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, 2009.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 10. | | MALAFAIA, P.; SALCEDO, Y. T. G.; USCATEGUI, R. A. R.; SOUZA, V. C.; COSTA, D. F. A.; BERCHIELLI, T. T. A simple and fast sampling method for chemical analyses na densitometry of bones through rib biopsies in cattle. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 1, p. 31-35, jan. 2017.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | BEELEN, P. M. G.; BERCHIELLI, T. T.; BEELEN, R. N.; ARAUJO FILHO, J. A. de; PEREIRA FILHO, J. M. Tanino condensando das espécies jurema preta (Mimosa hostilis), sabiá (Mimosa caesalpinifolia) e mororó (Bauhinia cheilantha), em três fases do ciclo fenológico. In: SIMPÓSIO INTERNACIONAL SOBRE CAPRINOS E OVINOS DE CORTE, 2.; SIMPÓSIO INTERNACIONAL SOBRE AGRONEGÓCIO DA CAPRINOCULTURA LEITEIRA, 1., 2003, João Pessoa. Anais... João Pessoa : EMEPA-PB, 2003. 4 f. 1 CD-ROM.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 12. | | PRIMAVESI, O.; FRIGHETTO, R. T. S.; PEDREIRA, M. S.; LIMA, M. A.; BERCHIELLI, T. T.; RODRIGUES, A. de A. Low fiber sugarcane to improve meat production with less methane emission in tropical dry season. In: INTERNATIONAL METHANE & NITROUS OXIDE MITIGATION, 3., 2003, Beijing, China. Proceedings. Beijing: China Coal Information Institute: US ERG Inc., 2003. p.185-189.| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Pecuária Sudeste. |
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| 13. | | PEDREIRA, M. dos S.; BERCHIELLI, T. T.; OLIVEIRA, S. G. de; PRIMAVESI, O.; LIMA, M. A.; FRIGHETTO, R. Produção de metano e concentração de ácidos gráxos voláteis ruminal em bovinos alimentados com diferentes relações de volumoso: concentrado. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 41., 2004, Campo Grande, MS. Anais... Campo Grande: SBZ, 2004. 5 f. 1 CD-ROM.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 14. | | MESSANA, J. D.; BERCHIELLI, T. T.; ARCURI, P. B.; REIS, R. A.; PIRES, A. V.; MALHEIROS, E. B. Valor nutritivo do resíduo do processamento do caroço de algodão suplementado com levedura e avaliado em bovinos. Revista Brasileira de Zootecnia, Viçosa, MG, v. 38, n. 10, p. 2031-2037, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | MARTINS, A. de S.; BERCHIELLI, T. T.; SALMAN, A. K. D.; SOARES, J. P. G.; LEITE, M. C. de P. Consumo voluntário de volumosos estimado por meio de parâmetros de degradação ruminal. PUBVET, Londrina v. 7, n. 15, Ed. 238, art. 1458, 2013.| Biblioteca(s): Embrapa Rondônia. |
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| 16. | | MARTINS, A. de S.; BERCHIELLI, T. T.; SALMAN, A. K.; SOARES, J. P. G.; LEITE, M. C. de P. Consumo voluntário de volumosos estimado por meio de parâmetros de degradação ruminal. PUBVET, Londrina, v. 7, n. 15, Ed. 238, art. 1458, 2013.| Biblioteca(s): Embrapa Cerrados. |
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| 17. | | SOARES, J. P. G.; BERCHIELLI, T. T.; SALMAN, A. K. D.; DERESZ, F.; OLIVEIRA, A. D.; VERNEQUE, R. S. Comparações entre equações de predição de consumo de capim-elefante cortado para vacas lactantes. Archivos de Zootecnia, Córdoba, v. 57, n. 218, p. 235-246, 2008.| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | SOARES, J. P. G.; BERCHIELLI, T. T.; SALMAN, A. K. D.; DERESZ, F.; OLIVEIRA, A. D.; VERNEQUE, R. S. Comparações entre equações de predição de consumo de capim-elefante cortado para vacas lactantes. Archivos de Zootecnia, Córdoba, v. 57, n. 218, p. 235-246, mar. 2008. Parceria: UNESP; Embrapa Rondônia; Embrapa Gado de Leite; UFRRJ.| Biblioteca(s): Embrapa Agrobiologia; Embrapa Rondônia. |
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| 19. | | OLIVEIRA, S. G. de; BERCHIELLI, T. T.; PEDREIRA, M. S.; PRIMAVESI, O.; FRIGHETTO, R. T. S.; LIMA, M. A. de. Effect of tannin levels in sorghum silage and concentrate supplementation on apparent digestibility and methane emission in beef cattle. Animal Feed Science and Technology, Amsterdam, v.135, 3-4, p.236-248, 2007.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 20. | | MESSANA, J. D.; BERCHIELLI, T. T.; ARCURI, P. B.; RIBEIRO, A. F.; CANESIN, R. C.; DIAN, P. H. M. Desempenho e característica de carcaça de bovinos de corte alimentados com diferentes teores de lipídeos na dieta. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA. 45., 2008, Lavras, MG. Anais... Viçosa, MG: Sociedade Brasileira de Zootecnia, 2008.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 71 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Gado de Leite; Embrapa Semiárido. |
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Data corrente: |
21/09/2020 |
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Data da última atualização: |
22/09/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RIBEIRO, R. S.; RODRIGUES, J. P. P.; MAURÍCIO, R. M.; BORGES, A. L. C. C.; REIS E SILVA, R.; BERCHIELLI, T. T.; VALADARES FILHO, S. C.; MACHADO, F. S.; CAMPOS, M. M.; FERREIRA, A. L.; GUIMARAES JUNIOR, R.; AZEVÊDO, J. A. G.; SANTOS, R. D. dos; TOMICH, T. R.; PEREIRA, L. G. R. |
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Afiliação: |
FERNANDA SAMARINI MACHADO, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL; ROBERTO GUIMARAES JUNIOR, CPAC; RAFAEL DANTAS DOS SANTOS, CPATSA; THIERRY RIBEIRO TOMICH, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL. |
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Título: |
Predicting enteric methane production from cattle in the tropics. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Animal, 2020. |
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Páginas: |
15 p. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Accurate estimates of methane (CH4) production by cattle in different contexts are essential to developing mitigation strategies in different regions. We aimed to: (i) compile a database of CH4 emissions from Brazilian cattle studies, (ii) evaluate prediction precision and accuracy of extant proposed equations for cattle and (iii) develop specialized equations for predicting CH4 emissions from cattle in tropical conditions. Data of nutrient intake, diet composition and CH4 emissions were compiled from in vivo studies using open-circuit respiratory chambers, SF6 technique or the GreenFeed® system. A final dataset containing intake, diet composition, digestibility and CH4 emissions (677 individual animal observations, 40 treatment means) obtained from 38 studies conducted in Brazil was used. The dataset was divided into three groups: all animals (GEN), lactating dairy cows (LAC) and growing cattle and non-lactating dairy cows (GCNL). A total of 54 prediction equations available in the literature were evaluated. A total of 96 multiple linear models were developed for predicting CH4 production (MJ/day). The predictor variables were DM intake (DMI), gross energy (GE) intake, BW, DMI as proportion of BW, NDF concentration, ether extract (EE) concentration, dietary proportion of concentrate and GE digestibility. Model selection criteria were significance (P < 0.05) and variance inflation factor lower than three for all predictors. Each model performance was evaluated by leave-one-out cross-validation. The Intergovernmental Panel on Climate Change (2006) Tier 2 method performed better for GEN and GCNL than LAC and overpredicted CH4 production for all datasets. Increasing complexity of the newly developed models resulted in greater performance. The GCNL had a greater number of equations with expanded possibilities to correct for diet characteristics such as EE and NDF concentrations and dietary proportion of concentrate. For the LAC dataset, equations based on intake and animal characteristics were developed. The equations developed in the present study can be useful for accurate and precise estimation of CH4 emissions from cattle in tropical conditions. These equations could improve accuracy of greenhouse gas inventories for tropical countries. The results provide a better understanding of the dietary and animal characteristics that influence the production of enteric CH4 in tropical production systems. MenosAccurate estimates of methane (CH4) production by cattle in different contexts are essential to developing mitigation strategies in different regions. We aimed to: (i) compile a database of CH4 emissions from Brazilian cattle studies, (ii) evaluate prediction precision and accuracy of extant proposed equations for cattle and (iii) develop specialized equations for predicting CH4 emissions from cattle in tropical conditions. Data of nutrient intake, diet composition and CH4 emissions were compiled from in vivo studies using open-circuit respiratory chambers, SF6 technique or the GreenFeed® system. A final dataset containing intake, diet composition, digestibility and CH4 emissions (677 individual animal observations, 40 treatment means) obtained from 38 studies conducted in Brazil was used. The dataset was divided into three groups: all animals (GEN), lactating dairy cows (LAC) and growing cattle and non-lactating dairy cows (GCNL). A total of 54 prediction equations available in the literature were evaluated. A total of 96 multiple linear models were developed for predicting CH4 production (MJ/day). The predictor variables were DM intake (DMI), gross energy (GE) intake, BW, DMI as proportion of BW, NDF concentration, ether extract (EE) concentration, dietary proportion of concentrate and GE digestibility. Model selection criteria were significance (P < 0.05) and variance inflation factor lower than three for all predictors. Each model performance was evaluated by leave-one-o... Mostrar Tudo |
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Palavras-Chave: |
Carne bovina; Emissões gases. |
|
Thesagro: |
Bovino; Carne; Digestibilidade; Efeito Estufa; Gado; Gado Leiteiro; Gás; Laticínio; Metano; Nutrição Animal. |
|
Thesaurus NAL: |
Animal nutrition; Dairy cattle. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 03649naa a2200469 a 4500
001 2125038
005 2020-09-22
008 2020 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, R. S.
245 $aPredicting enteric methane production from cattle in the tropics.$h[electronic resource]
260 $c2020
300 $a15 p.
520 $aAccurate estimates of methane (CH4) production by cattle in different contexts are essential to developing mitigation strategies in different regions. We aimed to: (i) compile a database of CH4 emissions from Brazilian cattle studies, (ii) evaluate prediction precision and accuracy of extant proposed equations for cattle and (iii) develop specialized equations for predicting CH4 emissions from cattle in tropical conditions. Data of nutrient intake, diet composition and CH4 emissions were compiled from in vivo studies using open-circuit respiratory chambers, SF6 technique or the GreenFeed® system. A final dataset containing intake, diet composition, digestibility and CH4 emissions (677 individual animal observations, 40 treatment means) obtained from 38 studies conducted in Brazil was used. The dataset was divided into three groups: all animals (GEN), lactating dairy cows (LAC) and growing cattle and non-lactating dairy cows (GCNL). A total of 54 prediction equations available in the literature were evaluated. A total of 96 multiple linear models were developed for predicting CH4 production (MJ/day). The predictor variables were DM intake (DMI), gross energy (GE) intake, BW, DMI as proportion of BW, NDF concentration, ether extract (EE) concentration, dietary proportion of concentrate and GE digestibility. Model selection criteria were significance (P < 0.05) and variance inflation factor lower than three for all predictors. Each model performance was evaluated by leave-one-out cross-validation. The Intergovernmental Panel on Climate Change (2006) Tier 2 method performed better for GEN and GCNL than LAC and overpredicted CH4 production for all datasets. Increasing complexity of the newly developed models resulted in greater performance. The GCNL had a greater number of equations with expanded possibilities to correct for diet characteristics such as EE and NDF concentrations and dietary proportion of concentrate. For the LAC dataset, equations based on intake and animal characteristics were developed. The equations developed in the present study can be useful for accurate and precise estimation of CH4 emissions from cattle in tropical conditions. These equations could improve accuracy of greenhouse gas inventories for tropical countries. The results provide a better understanding of the dietary and animal characteristics that influence the production of enteric CH4 in tropical production systems.
650 $aAnimal nutrition
650 $aDairy cattle
650 $aBovino
650 $aCarne
650 $aDigestibilidade
650 $aEfeito Estufa
650 $aGado
650 $aGado Leiteiro
650 $aGás
650 $aLaticínio
650 $aMetano
650 $aNutrição Animal
653 $aCarne bovina
653 $aEmissões gases
700 1 $aRODRIGUES, J. P. P.
700 1 $aMAURÍCIO, R. M.
700 1 $aBORGES, A. L. C. C.
700 1 $aREIS E SILVA, R.
700 1 $aBERCHIELLI, T. T.
700 1 $aVALADARES FILHO, S. C.
700 1 $aMACHADO, F. S.
700 1 $aCAMPOS, M. M.
700 1 $aFERREIRA, A. L.
700 1 $aGUIMARAES JUNIOR, R.
700 1 $aAZEVÊDO, J. A. G.
700 1 $aSANTOS, R. D. dos
700 1 $aTOMICH, T. R.
700 1 $aPEREIRA, L. G. R.
773 $tAnimal, 2020.
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