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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Pecuária Sudeste. |
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Data corrente: |
14/11/2019 |
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Data da última atualização: |
14/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERÇA, A. S.; CARDOSO, A. da S.; LONGHIGY, V. Z.; TEDESCHI, L. O.; BODDEY, R. M.; BERNDT, A.; REIS, R. A.; RUGGIERI, A. C. |
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Afiliação: |
Andressa S. Berça, UNESP JABOTICABAL; Abmael da S. Cardoso, UNESP JABOTICABAL; Vanessa Z. Longhini, UNESP JABOTICABAL; Luís O. Tedeschi, TEXAS UNIVERSITY; ROBERT MICHAEL BODDEY, CNPAB; ALEXANDRE BERNDT, CPPSE; Ricardo A. Reis, UNESP; Ana Cláudia Ruggieri, UNESP. |
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Título: |
Methane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanu |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 97, n. 11, , p. 4625-4634, nov. 2019. |
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ISSN: |
0021-8812 |
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DOI: |
https://doi.org/10.1093/jas/skz310 |
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Idioma: |
Inglês |
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Conteúdo: |
Livestock production systems are an essential agribusiness activity in Brazil, but a critical challenge of Brazilian farmers is to maintain the equilibrium of the ecosystem, using herbage resources efficiently with a minimum impact on the environment. Nitrogen (N) fertilization and the inclusion of forage legumes into tropical grass pastures are management strategies which increase the productivity and nutritive value of pastures and may also affect methane (CH4) production by ruminants. The objective of this study was to examine the effects of either fertilizing palisade grass pastures with N or including the forage peanut (Arachis pintoi) into grass pastures on enteric CH4 emission, microbial protein production in the rumen via purine derivatives in the urine, and N balance. Twenty-one nonlactating crossbred dairy heifers were used in a completely randomized design with 3 treatments. The treatments consisted of pastures of palisade grass without N fertilization (control), fertilized with urea (fertilized), and palisade grass mixed with forage peanut (mixed). Seven animals (replications) were used to evaluate dry matter intake, digestibility, CH4 emission, urea, purine derivatives, and volume of urine, and N ingestion and excretion. Four paddocks (replications) were used to measure herbage mass; morphological, botanical, and chemical composition of herbage; and herbage allowance. The CH4 emissions were determined using the sulfur hexafluoride (SF6) tracer gas technique. The efficiency of N utilization (ENU) was calculated using the N balance data. Crude protein (CP) concentration of herbage increased with fertilization or legumes inclusion (P < 0.0001) while neutral detergent fiber (NDF) concentration decreased (P = 0.0355). The leaf allowance was higher in the fertilized treatment (P = 0.0294). Only uric acid excretion increased with N fertilization (P = 0.0204). The ENU was not affected by fertilized or mixed compared to control and averaged 55% (P = 0.8945). The enteric CH4 production was similar between treatments and averaged 129 g/d (P = 0.3989). We concluded that the changes in chemical composition of herbage provided by N fertilization or the inclusion of the legume showed no reduction in enteric CH4 emissions, but the ENU was more significant than previous studies with palisade grass, suggesting that different management strategies might alter the ENU under grazing conditions. MenosLivestock production systems are an essential agribusiness activity in Brazil, but a critical challenge of Brazilian farmers is to maintain the equilibrium of the ecosystem, using herbage resources efficiently with a minimum impact on the environment. Nitrogen (N) fertilization and the inclusion of forage legumes into tropical grass pastures are management strategies which increase the productivity and nutritive value of pastures and may also affect methane (CH4) production by ruminants. The objective of this study was to examine the effects of either fertilizing palisade grass pastures with N or including the forage peanut (Arachis pintoi) into grass pastures on enteric CH4 emission, microbial protein production in the rumen via purine derivatives in the urine, and N balance. Twenty-one nonlactating crossbred dairy heifers were used in a completely randomized design with 3 treatments. The treatments consisted of pastures of palisade grass without N fertilization (control), fertilized with urea (fertilized), and palisade grass mixed with forage peanut (mixed). Seven animals (replications) were used to evaluate dry matter intake, digestibility, CH4 emission, urea, purine derivatives, and volume of urine, and N ingestion and excretion. Four paddocks (replications) were used to measure herbage mass; morphological, botanical, and chemical composition of herbage; and herbage allowance. The CH4 emissions were determined using the sulfur hexafluoride (SF6) tracer gas technique. The... Mostrar Tudo |
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Palavras-Chave: |
Tropical grass pastures. |
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Thesaurus Nal: |
Arachis pintoi; Dry matter intake. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03265naa a2200265 a 4500
001 2114373
005 2019-11-14
008 2019 bl uuuu u00u1 u #d
022 $a0021-8812
024 7 $ahttps://doi.org/10.1093/jas/skz310$2DOI
100 1 $aBERÇA, A. S.
245 $aMethane production and nitrogen balance of dairy heifers grazing palisade grass cv. Marandu alone or with forage peanu$h[electronic resource]
260 $c2019
520 $aLivestock production systems are an essential agribusiness activity in Brazil, but a critical challenge of Brazilian farmers is to maintain the equilibrium of the ecosystem, using herbage resources efficiently with a minimum impact on the environment. Nitrogen (N) fertilization and the inclusion of forage legumes into tropical grass pastures are management strategies which increase the productivity and nutritive value of pastures and may also affect methane (CH4) production by ruminants. The objective of this study was to examine the effects of either fertilizing palisade grass pastures with N or including the forage peanut (Arachis pintoi) into grass pastures on enteric CH4 emission, microbial protein production in the rumen via purine derivatives in the urine, and N balance. Twenty-one nonlactating crossbred dairy heifers were used in a completely randomized design with 3 treatments. The treatments consisted of pastures of palisade grass without N fertilization (control), fertilized with urea (fertilized), and palisade grass mixed with forage peanut (mixed). Seven animals (replications) were used to evaluate dry matter intake, digestibility, CH4 emission, urea, purine derivatives, and volume of urine, and N ingestion and excretion. Four paddocks (replications) were used to measure herbage mass; morphological, botanical, and chemical composition of herbage; and herbage allowance. The CH4 emissions were determined using the sulfur hexafluoride (SF6) tracer gas technique. The efficiency of N utilization (ENU) was calculated using the N balance data. Crude protein (CP) concentration of herbage increased with fertilization or legumes inclusion (P < 0.0001) while neutral detergent fiber (NDF) concentration decreased (P = 0.0355). The leaf allowance was higher in the fertilized treatment (P = 0.0294). Only uric acid excretion increased with N fertilization (P = 0.0204). The ENU was not affected by fertilized or mixed compared to control and averaged 55% (P = 0.8945). The enteric CH4 production was similar between treatments and averaged 129 g/d (P = 0.3989). We concluded that the changes in chemical composition of herbage provided by N fertilization or the inclusion of the legume showed no reduction in enteric CH4 emissions, but the ENU was more significant than previous studies with palisade grass, suggesting that different management strategies might alter the ENU under grazing conditions.
650 $aArachis pintoi
650 $aDry matter intake
653 $aTropical grass pastures
700 1 $aCARDOSO, A. da S.
700 1 $aLONGHIGY, V. Z.
700 1 $aTEDESCHI, L. O.
700 1 $aBODDEY, R. M.
700 1 $aBERNDT, A.
700 1 $aREIS, R. A.
700 1 $aRUGGIERI, A. C.
773 $tJournal of Animal Science$gv. 97, n. 11, , p. 4625-4634, nov. 2019.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação; Embrapa Unidades Centrais. |
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Data corrente: |
17/11/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
CRESTANA, S.; CASTRO, A. C.; RODRIGUES, R.; PINTO, L. C. G.; CAMARGO NETO, P. |
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Afiliação: |
SILVIO CRESTANA, CNPDIA; ANA CELIA CASTRO; ROBERTO RODRIGUES; LUIS CARLOS GUEDES PINTO; PEDRO CAMARGO NETO. |
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Título: |
SNPA: grupo de estudos avançados de aprimoramento do Sistema Nacional de Pesquisa Agropecuária: complemento ao relatório executivo. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Brasília, DF: Ed. dos autores, 2023. |
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Páginas: |
54 p. |
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Idioma: |
Português |
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Conteúdo: |
Complemento ao Relatório final do GT de Estudos Avançados para o Aprimoramento do SNPA, criado através da Portaria 56, de 14 de março de 2023, Ministério da Agricultura e Pecuária/Gabinete do Ministro. Este volume apresenta os seguintes capÃtulos: Embrapa hoje: questionamentos; Grandes temas ? temas estratégicos e novas abordagens em PD&I? SNPA e Embrapa do futuro; O SNPA, a Embrapa e oportunidades propiciadas pelo marco legal de CT&I; A necessidade de ajustes na empresa. Sugestões e propostas para o aprimoramento do SNPA e da Embrapa. |
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Palavras-Chave: |
Embrapa. |
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Thesagro: |
Empresa Publica; Gestão; Instituição Pública; Pesquisa Agrícola; Política Agrícola; Políticas Públicas. |
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Categoria do assunto: |
D Governo, Leis e Regulamentações |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159769/1/SNPA-Grupo-de-Estudos-avanAados-de-Aprimoramento-relatArio-complementar.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158505/1/relatorio-executivo-complemento-2-de-outubro.pdf
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Marc: |
LEADER 01339nam a2200253 a 4500
001 2159769
005 2024-01-15
008 2023 bl uuuu 00u1 u #d
100 1 $aCRESTANA, S.
245 $aSNPA$bgrupo de estudos avançados de aprimoramento do Sistema Nacional de Pesquisa Agropecuária: complemento ao relatório executivo.$h[electronic resource]
260 $aBrasília, DF: Ed. dos autores$c2023
300 $a54 p.
520 $aComplemento ao Relatório final do GT de Estudos Avançados para o Aprimoramento do SNPA, criado através da Portaria 56, de 14 de março de 2023, Ministério da Agricultura e Pecuária/Gabinete do Ministro. Este volume apresenta os seguintes capÃtulos: Embrapa hoje: questionamentos; Grandes temas ? temas estratégicos e novas abordagens em PD&I? SNPA e Embrapa do futuro; O SNPA, a Embrapa e oportunidades propiciadas pelo marco legal de CT&I; A necessidade de ajustes na empresa. Sugestões e propostas para o aprimoramento do SNPA e da Embrapa.
650 $aEmpresa Publica
650 $aGestão
650 $aInstituição Pública
650 $aPesquisa Agrícola
650 $aPolítica Agrícola
650 $aPolíticas Públicas
653 $aEmbrapa
700 1 $aCASTRO, A. C.
700 1 $aRODRIGUES, R.
700 1 $aPINTO, L. C. G.
700 1 $aCAMARGO NETO, P.
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