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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
20/12/2018 |
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Data da última atualização: |
22/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOREIRA, E. de A.; SOUZA, S. M. de; FERREIRA, A. L.; TOMICH, T. R.; AZEVÊDO, J. A. G.; SOUZA SOBRINHO, F. de; BENITES, F. R. G.; MACHADO, F. S.; CAMPOS, M. M.; PEREIRA, L. G. R. |
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Afiliação: |
ELLEN DE ALMEIDA MOREIRA, UESC, Ilhéus, BA; SHIRLEY MOTTA DE SOUZA; ALEXANDRE LIMA FERREIRA, UFSJ; THIERRY RIBEIRO TOMICH, CNPGL; JOSÉ AUGUSTO GOMES AZEVÊDO, UESC, Ilhéus, BA; FAUSTO DE SOUZA SOBRINHO, CNPGL; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; MARIANA MAGALHAES CAMPOS, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL. |
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Título: |
Nutritional diversity of Brachiaria ruziziensis clones. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Ciência Rural, v. 48, n. 2, e20160855, 2018. |
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DOI: |
http://dx.doi.org/10.1590/0103-8478cr20160855 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - The aim of this study was to evaluate the nutritional diversity of Brachiaria ruziziensis clones through chemical composition and in vitro kinetics of ruminal fermentation. Twenty three clones of Brachiaria ruziziensis were used (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 and 1972) and Brachiaria ruziziensis cv. '?Kennedy', Brachiaria brizantha cv. 'Marandu' and Brachiaria decumbens cv. 'Basilisk' as controls within 27 days of harvesting. The experimental design used randomized blocks with 26 treatments (genotypes) and three replications. Evaluation of the nutritional divergence was performed using principal components analysis, based on the following discriminatory variables: in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF), lignin, crude protein (CP), degradation rate of non-fibrous carbohydrates (KdNFC) and degradation rate of fibrous carbohydrates (KdFC). The evaluation of the nutritional diversity of Brachiaria genotypes was based on the two main components (IVDMD and NDF), which explains 96.2% of the total variance Variables of lower contribution to the discrimination of the clones were as degradation rates of the fibrous and non-fibrous carbohydrates. In the agglomerative hierarchical grouping analysis, five distinct groups were identified, where V group, formed by clones 46, 768 and 1067 have higher values of IVDMD compared to the other clones. RESUMO - O objetivo deste estudo foi avaliar a divergência nutricional de clones de Brachiaria ruziziensis através da composição química e cinética de fermentação ruminal in vitro. Os tratamentos consistiram de 23 clones de Brachiaria ruziziensis (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 e 1972), e as testemunhas Brachiaria ruziziensis cv ?Kennedy?, Brachiaria brizantha cv ?Marandu? e a Brachiaria decumbens cv ?Basilisk?, colhidas com 27 dias de rebrota. O delineamento experimental utilizado foi o de blocos casualizados, com 26 tratamentos (genótipos) e três repetições. A avaliação da divergência nutricional foi realizada utilizando-se a análise de componentes principais e agrupamento aglomerativo hierárquico. Com base nas seguintes variáveis discriminatórias: digestibilidade in vitro da matéria seca; fibra em detergente neutro; lignina; proteína bruta; taxa de degradação de carboidratos não fibrosos e; taxa de degradação de carboidratos fibrosos. A avaliação da divergência nutricional dos clones de B. ruziziensis baseou-se nos dois primeiros componentes principais (DIVMS e FDN), explicando 96.2% da variância total. As variáveis de menor contribuição para a discriminação dos clones foram as taxas de degradação dos carboidratos fibrosos e não fibrosos. Na análise de agrupamento aglomerativo hierárquico foram identificados cinco grupos distintos, em que o grupo V, formado pelos clones 46, 768 e 1067 destacou-se em relação aos demais por apresentar valores superiores de digestibilidade in vitro da matéria seca. MenosABSTRACT - The aim of this study was to evaluate the nutritional diversity of Brachiaria ruziziensis clones through chemical composition and in vitro kinetics of ruminal fermentation. Twenty three clones of Brachiaria ruziziensis were used (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 and 1972) and Brachiaria ruziziensis cv. '?Kennedy', Brachiaria brizantha cv. 'Marandu' and Brachiaria decumbens cv. 'Basilisk' as controls within 27 days of harvesting. The experimental design used randomized blocks with 26 treatments (genotypes) and three replications. Evaluation of the nutritional divergence was performed using principal components analysis, based on the following discriminatory variables: in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF), lignin, crude protein (CP), degradation rate of non-fibrous carbohydrates (KdNFC) and degradation rate of fibrous carbohydrates (KdFC). The evaluation of the nutritional diversity of Brachiaria genotypes was based on the two main components (IVDMD and NDF), which explains 96.2% of the total variance Variables of lower contribution to the discrimination of the clones were as degradation rates of the fibrous and non-fibrous carbohydrates. In the agglomerative hierarchical grouping analysis, five distinct groups were identified, where V group, formed by clones 46, 768 and 1067 have higher values of IVDMD compared to the other clones. RESUMO - O objetivo ... Mostrar Tudo |
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Palavras-Chave: |
Discriminating variables; Main components; Nutritional value. |
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Thesaurus Nal: |
Digestibility. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189074/1/Artigo-Ci-Rural-Thierry-Nutritional.pdf
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Marc: |
LEADER 03977naa a2200289 a 4500
001 2102212
005 2022-08-22
008 2018 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/0103-8478cr20160855$2DOI
100 1 $aMOREIRA, E. de A.
245 $aNutritional diversity of Brachiaria ruziziensis clones.$h[electronic resource]
260 $c2018
520 $aABSTRACT - The aim of this study was to evaluate the nutritional diversity of Brachiaria ruziziensis clones through chemical composition and in vitro kinetics of ruminal fermentation. Twenty three clones of Brachiaria ruziziensis were used (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 and 1972) and Brachiaria ruziziensis cv. '?Kennedy', Brachiaria brizantha cv. 'Marandu' and Brachiaria decumbens cv. 'Basilisk' as controls within 27 days of harvesting. The experimental design used randomized blocks with 26 treatments (genotypes) and three replications. Evaluation of the nutritional divergence was performed using principal components analysis, based on the following discriminatory variables: in vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF), lignin, crude protein (CP), degradation rate of non-fibrous carbohydrates (KdNFC) and degradation rate of fibrous carbohydrates (KdFC). The evaluation of the nutritional diversity of Brachiaria genotypes was based on the two main components (IVDMD and NDF), which explains 96.2% of the total variance Variables of lower contribution to the discrimination of the clones were as degradation rates of the fibrous and non-fibrous carbohydrates. In the agglomerative hierarchical grouping analysis, five distinct groups were identified, where V group, formed by clones 46, 768 and 1067 have higher values of IVDMD compared to the other clones. RESUMO - O objetivo deste estudo foi avaliar a divergência nutricional de clones de Brachiaria ruziziensis através da composição química e cinética de fermentação ruminal in vitro. Os tratamentos consistiram de 23 clones de Brachiaria ruziziensis (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 e 1972), e as testemunhas Brachiaria ruziziensis cv ?Kennedy?, Brachiaria brizantha cv ?Marandu? e a Brachiaria decumbens cv ?Basilisk?, colhidas com 27 dias de rebrota. O delineamento experimental utilizado foi o de blocos casualizados, com 26 tratamentos (genótipos) e três repetições. A avaliação da divergência nutricional foi realizada utilizando-se a análise de componentes principais e agrupamento aglomerativo hierárquico. Com base nas seguintes variáveis discriminatórias: digestibilidade in vitro da matéria seca; fibra em detergente neutro; lignina; proteína bruta; taxa de degradação de carboidratos não fibrosos e; taxa de degradação de carboidratos fibrosos. A avaliação da divergência nutricional dos clones de B. ruziziensis baseou-se nos dois primeiros componentes principais (DIVMS e FDN), explicando 96.2% da variância total. As variáveis de menor contribuição para a discriminação dos clones foram as taxas de degradação dos carboidratos fibrosos e não fibrosos. Na análise de agrupamento aglomerativo hierárquico foram identificados cinco grupos distintos, em que o grupo V, formado pelos clones 46, 768 e 1067 destacou-se em relação aos demais por apresentar valores superiores de digestibilidade in vitro da matéria seca.
650 $aDigestibility
653 $aDiscriminating variables
653 $aMain components
653 $aNutritional value
700 1 $aSOUZA, S. M. de
700 1 $aFERREIRA, A. L.
700 1 $aTOMICH, T. R.
700 1 $aAZEVÊDO, J. A. G.
700 1 $aSOUZA SOBRINHO, F. de
700 1 $aBENITES, F. R. G.
700 1 $aMACHADO, F. S.
700 1 $aCAMPOS, M. M.
700 1 $aPEREIRA, L. G. R.
773 $tCiência Rural$gv. 48, n. 2, e20160855, 2018.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
29/11/2022 |
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Data da última atualização: |
30/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
VENTURIERI, A.; OLIVEIRA, R. R. S. de; IGAWA, T. K.; FERNANDES, K. de A.; ADAMI, M.; OLIVEIRA JUNIOR, M. C. M. de; ALMEIDA, C. A.; SILVA, L. G. T.; CABRAL, A. I. R.; PINTO, J. F. K. C.; MENEZES, A. J. E. A. de; SAMPAIO, S. M. N. |
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Afiliação: |
ADRIANO VENTURIERI, CPATU; RODRIGO RAFAEL SOUZA DE OLIVEIRA, UNIVERSIDADE DO ESTADO DO PARÁ; TASSIO KOITI IGAWA, COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR; KATIA DE AVILA FERNANDES, UNIVERSITY OF ARKANSAS; MARCOS ADAMI, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; MOISES CORDEIRO MOURAO DE OLIVEIRA, CPATU; CLÁUDIO APARECIDO ALMEIDA, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; LUIZ GUILHERME TEIXEIRA SILVA, CPATU; ANA I. R. CABRAL, UNIVERSIDADE DE LISBOA; JOÃO FELIPE KNEIPP CERQUEIRA PINTO, FUNDAÇÃO DE DESENVOLVIMENTO DA PESQUISA; ANTONIO JOSE ELIAS A DE MENEZES, CPATU; SANDRA MARIA NEIVA SAMPAIO, CPATU. |
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Título: |
The sustainable expansion of the cocoa crop in the state of Pará and its contribution to altered areas recovery and fire reduction. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of Geographic Information System, v. 14, n. 3, p. 294-313, June 2022. |
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DOI: |
https://doi.org/10.4236/jgis.2022.143016 |
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Idioma: |
Inglês |
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Conteúdo: |
The state of Pará, located in the Amazon region of Brazil, has observed in recent years an increase in cocoa (Theobroma cacao) cultivation and has become the largest producer in Brazil. Due to its physiological characteristics, cacao is cultivated in native forests understory or under the shade produced by fast-growing native tree species, serving as an important species for restoration of degraded areas. However, mapping and monitoring cocoa plantation using optical sensor images is a challenge given its botanical and arboreal characteristics that can be confused with other native species at various stages of secondary regrowth. Agroforestry systems are important components of sustainable production in the Amazon and our work sought to better describe the evolution of cocoa plantations in terms of their historical expansion, farming properties practices, land use transitions and fire regimes. Our findings to analyze the relationships between cocoa plantations and hotspots, data from the INPE?s reference satellite between the years 2004 to 2020 were used in this study, polygons classified as cocoa areas, generated by the MapCacau research project, were used, in a total of 69,904 hectares distributed throughout the state of Pará. Finally, we used the protected areas? official limits in the State of Pará to analyze the plantations? occurrence in regions in discordance with environmental legislation. The data show that cocoa-producing properties are statistically fewer than non-producing properties, as well as having lower deforestation rates. In our study, we observed that 52,778 hectares (88.87%) of the cocoa area planted had already been deforested by the year 2008?the threshold of deforestation defined by Brazil?s Forest Code. It was also possible to verify that approximately 20,900 hectares continue to be mapped as forest by PRODES, despite our field data identifying cocoa plantations shaded by explored forest in these areas. Regarding the crop?s formation, the data show a tendency to convert pasture areas to cocoa plantations, proving that cocoa farming expansion in the State of Pará is an important activity for degraded areas recovery and not a main driver of deforestation. The finding that cocoa plantations are still classified as forest by PRODES and project TerraClass highlights the difficulty of mapping this crop using orbital images in a traditional way. Through this paper, it was possible to observe that due to the typical characteristics of perennial crops (cocoa), fire points showed a significant reduction in the mapped areas, highlighting that the expansion of cocoa plantations in the state of Pará contributed to soil protection, to the reduction of greenhouse gas emissions into, in addition to contributing to the generation of jobs and revenue. Finally, we found about 99.54% of the cacao plantations in the State of Pará are located outside of any preservation area, indigenous land or quilombola settlement. MenosThe state of Pará, located in the Amazon region of Brazil, has observed in recent years an increase in cocoa (Theobroma cacao) cultivation and has become the largest producer in Brazil. Due to its physiological characteristics, cacao is cultivated in native forests understory or under the shade produced by fast-growing native tree species, serving as an important species for restoration of degraded areas. However, mapping and monitoring cocoa plantation using optical sensor images is a challenge given its botanical and arboreal characteristics that can be confused with other native species at various stages of secondary regrowth. Agroforestry systems are important components of sustainable production in the Amazon and our work sought to better describe the evolution of cocoa plantations in terms of their historical expansion, farming properties practices, land use transitions and fire regimes. Our findings to analyze the relationships between cocoa plantations and hotspots, data from the INPE?s reference satellite between the years 2004 to 2020 were used in this study, polygons classified as cocoa areas, generated by the MapCacau research project, were used, in a total of 69,904 hectares distributed throughout the state of Pará. Finally, we used the protected areas? official limits in the State of Pará to analyze the plantations? occurrence in regions in discordance with environmental legislation. The data show that cocoa-producing properties are statistically fewer than non... Mostrar Tudo |
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Palavras-Chave: |
Área alterada; Recuperação. |
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Thesagro: |
Cacau; Theobroma Cacao. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148918/1/jgis-2022062814555132.pdf
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Marc: |
LEADER 04017naa a2200325 a 4500
001 2148918
005 2022-11-30
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.4236/jgis.2022.143016$2DOI
100 1 $aVENTURIERI, A.
245 $aThe sustainable expansion of the cocoa crop in the state of Pará and its contribution to altered areas recovery and fire reduction.$h[electronic resource]
260 $c2022
520 $aThe state of Pará, located in the Amazon region of Brazil, has observed in recent years an increase in cocoa (Theobroma cacao) cultivation and has become the largest producer in Brazil. Due to its physiological characteristics, cacao is cultivated in native forests understory or under the shade produced by fast-growing native tree species, serving as an important species for restoration of degraded areas. However, mapping and monitoring cocoa plantation using optical sensor images is a challenge given its botanical and arboreal characteristics that can be confused with other native species at various stages of secondary regrowth. Agroforestry systems are important components of sustainable production in the Amazon and our work sought to better describe the evolution of cocoa plantations in terms of their historical expansion, farming properties practices, land use transitions and fire regimes. Our findings to analyze the relationships between cocoa plantations and hotspots, data from the INPE?s reference satellite between the years 2004 to 2020 were used in this study, polygons classified as cocoa areas, generated by the MapCacau research project, were used, in a total of 69,904 hectares distributed throughout the state of Pará. Finally, we used the protected areas? official limits in the State of Pará to analyze the plantations? occurrence in regions in discordance with environmental legislation. The data show that cocoa-producing properties are statistically fewer than non-producing properties, as well as having lower deforestation rates. In our study, we observed that 52,778 hectares (88.87%) of the cocoa area planted had already been deforested by the year 2008?the threshold of deforestation defined by Brazil?s Forest Code. It was also possible to verify that approximately 20,900 hectares continue to be mapped as forest by PRODES, despite our field data identifying cocoa plantations shaded by explored forest in these areas. Regarding the crop?s formation, the data show a tendency to convert pasture areas to cocoa plantations, proving that cocoa farming expansion in the State of Pará is an important activity for degraded areas recovery and not a main driver of deforestation. The finding that cocoa plantations are still classified as forest by PRODES and project TerraClass highlights the difficulty of mapping this crop using orbital images in a traditional way. Through this paper, it was possible to observe that due to the typical characteristics of perennial crops (cocoa), fire points showed a significant reduction in the mapped areas, highlighting that the expansion of cocoa plantations in the state of Pará contributed to soil protection, to the reduction of greenhouse gas emissions into, in addition to contributing to the generation of jobs and revenue. Finally, we found about 99.54% of the cacao plantations in the State of Pará are located outside of any preservation area, indigenous land or quilombola settlement.
650 $aAmazonia
650 $aCacau
650 $aTheobroma Cacao
653 $aÁrea alterada
653 $aRecuperação
700 1 $aOLIVEIRA, R. R. S. de
700 1 $aIGAWA, T. K.
700 1 $aFERNANDES, K. de A.
700 1 $aADAMI, M.
700 1 $aOLIVEIRA JUNIOR, M. C. M. de
700 1 $aALMEIDA, C. A.
700 1 $aSILVA, L. G. T.
700 1 $aCABRAL, A. I. R.
700 1 $aPINTO, J. F. K. C.
700 1 $aMENEZES, A. J. E. A. de
700 1 $aSAMPAIO, S. M. N.
773 $tJournal of Geographic Information System$gv. 14, n. 3, p. 294-313, June 2022.
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