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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
30/09/1998 |
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Data da última atualização: |
30/09/1998 |
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Autoria: |
FEIJO, G. L. D.; EUCLIDES FILHO, K. |
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Afiliação: |
EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande, MS). |
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Título: |
Efeito de diferentes sistemas de producao sobre as caracteristicas das carcacas de bovinos de dois grupos geneticos. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu. Anais... Botucatu: SBZ, 1998. |
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Volume: |
v.4. |
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Páginas: |
p.659-661. |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Conteúdo: |
Experimento foi desenvolvido no Centro Nacional de Pesquisa de Gado de Corte (CNPGC) da Empresa Brasileira de Pesquisa Agropecuaria (EMBRAPA), Campo Grande, MS, com o objetivo de avaliar o efeito de tres sistemas de producao de gado de corte sobre as caracteristicas de carcaca e carne de dois grupos geneticos (animais Fl Aberdeen Angus x Nelore e Simental x Nelore). Os sistemas testados foram castracao ao nascimento com suplementacao na primeira seca e confinamento na segunda; castracao a desmama com suplementacao na primeira seca e confinamento na segunda; confinamento de bovinos inteiros logo apos a desmama aos sete meses. Nao houve interacao (P>0,05) entre grupo genetico e sistema de producao para nenhuma das caracteristicas avaliadas. Os sistemas onde a diferenca foi a epoca de castracao mostraram-se semelhantes (P>0,05) para todas as caracteristicas avaliadas. O sistema que utilizou animais inteiros produziu carcacas mais leves, de menor tamanho e com menos gordura, porem, com maior proporcao de carne (P<0,05). |
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Palavras-Chave: |
Aberdeen Angus; Bovino de corte; Carcasses; Nelore; Simental; Suplementacao; Supplements. |
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Thesagro: |
Carcaça; Castração; Confinamento; Cruzamento; Sistema de Produção. |
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Thesaurus Nal: |
beef cattle; castration; crossbreds; farming systems; feedlots; Nellore; Simmental. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02128naa a2200397 a 4500
001 1318320
005 1998-09-30
008 1998 bl uuuu u00u1 u #d
100 1 $aFEIJO, G. L. D.
245 $aEfeito de diferentes sistemas de producao sobre as caracteristicas das carcacas de bovinos de dois grupos geneticos.
260 $c1998
300 $ap.659-661. v.4.
490 $vv.4.
500 $aCNPGC.
520 $aExperimento foi desenvolvido no Centro Nacional de Pesquisa de Gado de Corte (CNPGC) da Empresa Brasileira de Pesquisa Agropecuaria (EMBRAPA), Campo Grande, MS, com o objetivo de avaliar o efeito de tres sistemas de producao de gado de corte sobre as caracteristicas de carcaca e carne de dois grupos geneticos (animais Fl Aberdeen Angus x Nelore e Simental x Nelore). Os sistemas testados foram castracao ao nascimento com suplementacao na primeira seca e confinamento na segunda; castracao a desmama com suplementacao na primeira seca e confinamento na segunda; confinamento de bovinos inteiros logo apos a desmama aos sete meses. Nao houve interacao (P>0,05) entre grupo genetico e sistema de producao para nenhuma das caracteristicas avaliadas. Os sistemas onde a diferenca foi a epoca de castracao mostraram-se semelhantes (P>0,05) para todas as caracteristicas avaliadas. O sistema que utilizou animais inteiros produziu carcacas mais leves, de menor tamanho e com menos gordura, porem, com maior proporcao de carne (P<0,05).
650 $abeef cattle
650 $acastration
650 $acrossbreds
650 $afarming systems
650 $afeedlots
650 $aNellore
650 $aSimmental
650 $aCarcaça
650 $aCastração
650 $aConfinamento
650 $aCruzamento
650 $aSistema de Produção
653 $aAberdeen Angus
653 $aBovino de corte
653 $aCarcasses
653 $aNelore
653 $aSimental
653 $aSuplementacao
653 $aSupplements
700 1 $aEUCLIDES FILHO, K.
773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu. Anais... Botucatu: SBZ, 1998.
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Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
05/01/2017 |
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Data da última atualização: |
08/10/2021 |
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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: |
ARAUJO, J. K. S.; SOUZA JÚNIOR, V. S. de; MARQUES, F. A.; VORONEY, P.; SOUZA, R. A. da S. |
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Afiliação: |
JANE KELLY SILVA ARAUJO, UFRPE; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE; FLAVIO ADRIANO MARQUES, CNPS; PAUL VORONEY, School of Environmental Sciences, University of Guelph; REGILENE ANGELICA DA SILVA SOUZA, UFRA. |
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Título: |
Assessment of carbon storage under rainforests in Humic Hapludox along a climosequence extending from the Atlantic coast to the highlands of northeastern Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Science of The Total Environment, v. 568, p. 339-349, Oct. 2016. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2016.06.025 |
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Idioma: |
Inglês |
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Conteúdo: |
An understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high proportion of organic C present in the microbial biomass. Values of 13C showed a predominance of C3 plant-C in SOM where as 15N patterns indicated that N dynamics differ among the profiles and drive the accumulation of C. These findings can help to characterize the susceptibility of these soils to changes in climate and land use and the implications for the sequestration of soil C. MenosAn understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high p... Mostrar Tudo |
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Palavras-Chave: |
Biomassa microbiana; Carbono profundo; FTIR; Lixo; Nitrogênio do solo; Semiárido. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02734naa a2200253 a 4500
001 2059966
005 2021-10-08
008 2016 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2016.06.025$2DOI
100 1 $aARAUJO, J. K. S.
245 $aAssessment of carbon storage under rainforests in Humic Hapludox along a climosequence extending from the Atlantic coast to the highlands of northeastern Brazil.$h[electronic resource]
260 $c2016
520 $aAn understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high proportion of organic C present in the microbial biomass. Values of 13C showed a predominance of C3 plant-C in SOM where as 15N patterns indicated that N dynamics differ among the profiles and drive the accumulation of C. These findings can help to characterize the susceptibility of these soils to changes in climate and land use and the implications for the sequestration of soil C.
653 $aBiomassa microbiana
653 $aCarbono profundo
653 $aFTIR
653 $aLixo
653 $aNitrogênio do solo
653 $aSemiárido
700 1 $aSOUZA JÚNIOR, V. S. de
700 1 $aMARQUES, F. A.
700 1 $aVORONEY, P.
700 1 $aSOUZA, R. A. da S.
773 $tScience of The Total Environment$gv. 568, p. 339-349, Oct. 2016.
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