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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Semiárido. |
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Data corrente: |
28/01/2011 |
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Data da última atualização: |
20/02/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MENEZES. D. R.; COSTA, R. G.; PEREIRA, L. G. R.; ARAUJO, G. G. L. de; SILVA, A. E. V. N.; OLIVEIRA, P. T. L. de. |
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Afiliação: |
DANIEL RIBEIRO MENEZES; ROBERTO GERMANO COSTA; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; ALDRIN ÉDERSON VILA NOVA SILVA; PABLO TEIXEIRA LEAL DE OLIVEIRA. |
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Título: |
Balanço de nitrogênio em dietas com farelo de mamona para ovinos. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA, 2010. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
Objetivou-se com este experimento avaliar o balaço de nitrogênio em ovinos alimentados com dietas com subtituição parcial do farelo de soja pelo farelo de mamona detoxificada. |
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Palavras-Chave: |
Euforbiáceas; Farelo de mamona; Farelo de soja. |
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Thesagro: |
Dieta; Digestão; Metabolismo; Nitrogênio; Ovino. |
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Thesaurus Nal: |
Diet; Digestion; Metabolism; Nitrogen; Sheep. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/26123/1/Gherman4.pdf
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Marc: |
LEADER 01341nam a2200337 a 4500
001 1877786
005 2024-02-20
008 2010 bl uuuu u00u1 u #d
100 1 $aMENEZES. D. R.
245 $aBalanço de nitrogênio em dietas com farelo de mamona para ovinos.$h[electronic resource]
260 $aIn: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA$c2010
300 $c1 CD-ROM.
520 $aObjetivou-se com este experimento avaliar o balaço de nitrogênio em ovinos alimentados com dietas com subtituição parcial do farelo de soja pelo farelo de mamona detoxificada.
650 $aDiet
650 $aDigestion
650 $aMetabolism
650 $aNitrogen
650 $aSheep
650 $aDieta
650 $aDigestão
650 $aMetabolismo
650 $aNitrogênio
650 $aOvino
653 $aEuforbiáceas
653 $aFarelo de mamona
653 $aFarelo de soja
700 1 $aCOSTA, R. G.
700 1 $aPEREIRA, L. G. R.
700 1 $aARAUJO, G. G. L. de
700 1 $aSILVA, A. E. V. N.
700 1 $aOLIVEIRA, P. T. L. de
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Pecuária Sudeste. |
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Data corrente: |
04/05/2016 |
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Data da última atualização: |
21/03/2019 |
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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: |
CARDOSO, A. S.; BERNDT, A.; LEYTEM, A.; ALVES, B. J. R.; CARVALHO, I. das N. O. de; SOARES, L. H. de B.; URQUIAGA, S.; BODDEY, R. M. |
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Afiliação: |
ABMAEL S. CARDOSO, UNESP, JABOTICABAL, SP; ALEXANDRE BERNDT, CPPSE; APRIL LEYTEM, USDA, KIMBERLY, USA; BRUNO JOSE RODRIGUES ALVES, CNPAB; ISABEL DAS N. O. DE CARVALHO, BOLSISTA EMBRAPA AGROBIOLOGIA; LUIS HENRIQUE DE BARROS SOARES, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; ROBERT MICHAEL BODDEY, CNPAB. |
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Título: |
Impact of the intensification of beef production in Brazil on grenhouse gas emissions and land use. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Agricultural Systems, Essex, v. 143, p. 86-96, 2016. |
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DOI: |
10.1016/j.agsy.2015.12.007 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil has the largest herd of beef cattle in the world, estimated at approximately 200 million animals. Production is predominantly pasture-based and low input and hence time to slaughter is long, which promotes high methane (CH4) emissions per kg of product. The objective of this study was to investigate the impact of increasing animal productivity using fertilizers, forage legumes, supplements and concentrates, on the emissions of greenhouse gases (GHGs) in five scenarios for beef production in Brazil. A life cycle analysis (LCA) approach, from birth of calves to mature animals ready for slaughter at the farm gate, was utilized using Tier 2 methodologies of the IPCC and the results expressed in equivalents of carbon dioxide (CO2eq) per kg of carcass produced. Fossil CO2 emitted in the production of supplements, feeds and fertilizers was included using standard LCA techniques. The first four scenarios were based solely on cattle production on pasture, ranging from degraded Brachiaria pastures, through to a mixed legume/Brachiaria pasture and improved N-fertilized pastures of Guinea grass (Panicum maximum). Scenario 5 was the most intensive and was also based on an N-fertilized Guinea grass pasture, but with a 75-day finishing period in confinement with total mixed ration (TMR). Across the scenarios from 1 to 5 the increase in digestibility promoted a reduction in the forage intake per unit of animal weight gain and a concomitant reduction in CH4 emissions. For the estimation of nitrous oxide (N2O) emissions from animal excreta, emission factors from a study in the Cerrado region were utilized which postulated lower emission from dung than from urine and much lower emissions in the long dry season in this region. The greatest impact of intensification of the beef production systems was a 7-fold reduction of the area necessary for production from 320 to 45 m2/kg carcass. Carcass production increased from 43 to 65 Mg per herd across the scenarios from 1 to 5, and total emissions per kg carcass were estimated to be reduced from 58.3 to 29.4 kg CO2eq/kg carcass. Even though animal weight gain was lower in the mixed grass-legume scenario (3) than for the N-fertilized Guinea grass pastures (scenarios 4 and 5) GHG emissions per kg carcass were similar as the legume N2 fixation input had no fossil-fuel cost. A large source of uncertainty for the construction of such LCAs was the lack of data for enteric CH4 emissions from cattle grazing tropical forages. MenosBrazil has the largest herd of beef cattle in the world, estimated at approximately 200 million animals. Production is predominantly pasture-based and low input and hence time to slaughter is long, which promotes high methane (CH4) emissions per kg of product. The objective of this study was to investigate the impact of increasing animal productivity using fertilizers, forage legumes, supplements and concentrates, on the emissions of greenhouse gases (GHGs) in five scenarios for beef production in Brazil. A life cycle analysis (LCA) approach, from birth of calves to mature animals ready for slaughter at the farm gate, was utilized using Tier 2 methodologies of the IPCC and the results expressed in equivalents of carbon dioxide (CO2eq) per kg of carcass produced. Fossil CO2 emitted in the production of supplements, feeds and fertilizers was included using standard LCA techniques. The first four scenarios were based solely on cattle production on pasture, ranging from degraded Brachiaria pastures, through to a mixed legume/Brachiaria pasture and improved N-fertilized pastures of Guinea grass (Panicum maximum). Scenario 5 was the most intensive and was also based on an N-fertilized Guinea grass pasture, but with a 75-day finishing period in confinement with total mixed ration (TMR). Across the scenarios from 1 to 5 the increase in digestibility promoted a reduction in the forage intake per unit of animal weight gain and a concomitant reduction in CH4 emissions. For the estimati... Mostrar Tudo |
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Palavras-Chave: |
Beef production; Brachiaria spp; Forage legume; Life cycle analysis; Life-cycle analysis. |
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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/156565/1/1-s2.0-S0308521X15300652-main.pdf
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Marc: |
LEADER 03303naa a2200277 a 4500
001 2065398
005 2019-03-21
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agsy.2015.12.007$2DOI
100 1 $aCARDOSO, A. S.
245 $aImpact of the intensification of beef production in Brazil on grenhouse gas emissions and land use.
260 $c2016
520 $aBrazil has the largest herd of beef cattle in the world, estimated at approximately 200 million animals. Production is predominantly pasture-based and low input and hence time to slaughter is long, which promotes high methane (CH4) emissions per kg of product. The objective of this study was to investigate the impact of increasing animal productivity using fertilizers, forage legumes, supplements and concentrates, on the emissions of greenhouse gases (GHGs) in five scenarios for beef production in Brazil. A life cycle analysis (LCA) approach, from birth of calves to mature animals ready for slaughter at the farm gate, was utilized using Tier 2 methodologies of the IPCC and the results expressed in equivalents of carbon dioxide (CO2eq) per kg of carcass produced. Fossil CO2 emitted in the production of supplements, feeds and fertilizers was included using standard LCA techniques. The first four scenarios were based solely on cattle production on pasture, ranging from degraded Brachiaria pastures, through to a mixed legume/Brachiaria pasture and improved N-fertilized pastures of Guinea grass (Panicum maximum). Scenario 5 was the most intensive and was also based on an N-fertilized Guinea grass pasture, but with a 75-day finishing period in confinement with total mixed ration (TMR). Across the scenarios from 1 to 5 the increase in digestibility promoted a reduction in the forage intake per unit of animal weight gain and a concomitant reduction in CH4 emissions. For the estimation of nitrous oxide (N2O) emissions from animal excreta, emission factors from a study in the Cerrado region were utilized which postulated lower emission from dung than from urine and much lower emissions in the long dry season in this region. The greatest impact of intensification of the beef production systems was a 7-fold reduction of the area necessary for production from 320 to 45 m2/kg carcass. Carcass production increased from 43 to 65 Mg per herd across the scenarios from 1 to 5, and total emissions per kg carcass were estimated to be reduced from 58.3 to 29.4 kg CO2eq/kg carcass. Even though animal weight gain was lower in the mixed grass-legume scenario (3) than for the N-fertilized Guinea grass pastures (scenarios 4 and 5) GHG emissions per kg carcass were similar as the legume N2 fixation input had no fossil-fuel cost. A large source of uncertainty for the construction of such LCAs was the lack of data for enteric CH4 emissions from cattle grazing tropical forages.
653 $aBeef production
653 $aBrachiaria spp
653 $aForage legume
653 $aLife cycle analysis
653 $aLife-cycle analysis
700 1 $aBERNDT, A.
700 1 $aLEYTEM, A.
700 1 $aALVES, B. J. R.
700 1 $aCARVALHO, I. das N. O. de
700 1 $aSOARES, L. H. de B.
700 1 $aURQUIAGA, S.
700 1 $aBODDEY, R. M.
773 $tAgricultural Systems, Essex$gv. 143, p. 86-96, 2016.
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Embrapa Pecuária Sudeste (CPPSE) |
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