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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
10/05/2013 |
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Data da última atualização: |
04/07/2016 |
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Autoria: |
BRANCO, A. F.; MOURO, G. F.; HARMON, D. L.; CONEGLIAN, S. M.; MAIA, F. J.; PROHMANN, P. E.; PARIS, W. |
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Título: |
Fluxo portal de nutrientes em ovinos alimentados para mantença com dietas contendo diferentes níveis de volumosos. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Revista Brasileira de Saúde e Produção Animal, Salvador, v. 10, n. 4, p. 1010-1018, out./dez. 2009. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo com este trabalho foi avaliar o fluxo portal de nutrientes em ovinos alimentados em nível de mantença com proporções crescentes de volumoso na dieta. Foram utilizados três ovinos da raça Suffolk, implantados com três cateteres (veia e artéria mesentérica e veia porta) em um delineamento quadrado latino 3x3. Os tratamentos consistiram na utilização de três níveis de silagem de milho 30, 40 e 50% na matéria seca (MS) da dieta. O fluxo líquido de nutrientes foi calculado pela infusão contínua de ácido para-aminohipúrico, e o fluxo líquido de nutrientes foi calculado usando a diferença artério-venosa para concentração e fluxo plasmático. As concentrações portal e arterial de glicose e nitrogênio ?-amino (N ?-amino) não foram influenciadas pelo nível de volumoso na dieta. As médias para os fluxos portaisde glicose e N ?-amino não diferiram entre os tratamentos estudados. Houve efeito quadrático do nível do volumoso sobre as concentrações de uréia no plasma portal e arterial. Não houve diferença entre os tratamentos para a diferença artério-venosa e fluxo portal de uréia. Houve efeito quadrático para a concentração portal, para a diferença venosa arterial e fluxo portal de amônia
[Nutrient portal flux in sheep fed to maintenance with diets formulated with different roughage levels].
Abstract: The objectives of this study was to evaluate portal nutrient flux in sheep receiving diets with increasing forage level to supply maintenance requirements. Three Suffolk wethers, fitted with mesenteric vein, portal vein and mesenteric artery catheters were used in a 3 x 3 Latin square design. Treatments were as following: 30; 40 and 50% of corn silage in the diet (as dry matter basis). Portal plasma flow was determined by continuous infusion of P-aminohippurate, and net nutrient flux was calculated from the difference between venous and arterial concentration times blood flow. Forage level in the diet did not influence portal plasma flow. Portal and arterial concentrations of glucose and ? amino-nitrogen were not affected by forage level in the diet. Portal flux of glucose and alpha-amino-nitrogen were not affected by forage level. Forage increase in the diet produced a quadratic response in portal and arterial urea concentration. There was no effect of forage level on difference of venous arterial and portal urea flux. There was a quadratic effect of forage level on portal concentration, difference venous arterial and portal flux of ammonia. MenosO objetivo com este trabalho foi avaliar o fluxo portal de nutrientes em ovinos alimentados em nível de mantença com proporções crescentes de volumoso na dieta. Foram utilizados três ovinos da raça Suffolk, implantados com três cateteres (veia e artéria mesentérica e veia porta) em um delineamento quadrado latino 3x3. Os tratamentos consistiram na utilização de três níveis de silagem de milho 30, 40 e 50% na matéria seca (MS) da dieta. O fluxo líquido de nutrientes foi calculado pela infusão contínua de ácido para-aminohipúrico, e o fluxo líquido de nutrientes foi calculado usando a diferença artério-venosa para concentração e fluxo plasmático. As concentrações portal e arterial de glicose e nitrogênio ?-amino (N ?-amino) não foram influenciadas pelo nível de volumoso na dieta. As médias para os fluxos portaisde glicose e N ?-amino não diferiram entre os tratamentos estudados. Houve efeito quadrático do nível do volumoso sobre as concentrações de uréia no plasma portal e arterial. Não houve diferença entre os tratamentos para a diferença artério-venosa e fluxo portal de uréia. Houve efeito quadrático para a concentração portal, para a diferença venosa arterial e fluxo portal de amônia
[Nutrient portal flux in sheep fed to maintenance with diets formulated with different roughage levels].
Abstract: The objectives of this study was to evaluate portal nutrient flux in sheep receiving diets with increasing forage level to supply maintenance requirements. Three Suffolk wethers, ... Mostrar Tudo |
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Palavras-Chave: |
Raça Suffolk. |
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Thesagro: |
Exigência nutricional; Nutrição animal; Ovino. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03295naa a2200241 a 4500
001 1957620
005 2016-07-04
008 2009 bl uuuu u00u1 u #d
100 1 $aBRANCO, A. F.
245 $aFluxo portal de nutrientes em ovinos alimentados para mantença com dietas contendo diferentes níveis de volumosos.$h[electronic resource]
260 $c2009
520 $aO objetivo com este trabalho foi avaliar o fluxo portal de nutrientes em ovinos alimentados em nível de mantença com proporções crescentes de volumoso na dieta. Foram utilizados três ovinos da raça Suffolk, implantados com três cateteres (veia e artéria mesentérica e veia porta) em um delineamento quadrado latino 3x3. Os tratamentos consistiram na utilização de três níveis de silagem de milho 30, 40 e 50% na matéria seca (MS) da dieta. O fluxo líquido de nutrientes foi calculado pela infusão contínua de ácido para-aminohipúrico, e o fluxo líquido de nutrientes foi calculado usando a diferença artério-venosa para concentração e fluxo plasmático. As concentrações portal e arterial de glicose e nitrogênio ?-amino (N ?-amino) não foram influenciadas pelo nível de volumoso na dieta. As médias para os fluxos portaisde glicose e N ?-amino não diferiram entre os tratamentos estudados. Houve efeito quadrático do nível do volumoso sobre as concentrações de uréia no plasma portal e arterial. Não houve diferença entre os tratamentos para a diferença artério-venosa e fluxo portal de uréia. Houve efeito quadrático para a concentração portal, para a diferença venosa arterial e fluxo portal de amônia [Nutrient portal flux in sheep fed to maintenance with diets formulated with different roughage levels]. Abstract: The objectives of this study was to evaluate portal nutrient flux in sheep receiving diets with increasing forage level to supply maintenance requirements. Three Suffolk wethers, fitted with mesenteric vein, portal vein and mesenteric artery catheters were used in a 3 x 3 Latin square design. Treatments were as following: 30; 40 and 50% of corn silage in the diet (as dry matter basis). Portal plasma flow was determined by continuous infusion of P-aminohippurate, and net nutrient flux was calculated from the difference between venous and arterial concentration times blood flow. Forage level in the diet did not influence portal plasma flow. Portal and arterial concentrations of glucose and ? amino-nitrogen were not affected by forage level in the diet. Portal flux of glucose and alpha-amino-nitrogen were not affected by forage level. Forage increase in the diet produced a quadratic response in portal and arterial urea concentration. There was no effect of forage level on difference of venous arterial and portal urea flux. There was a quadratic effect of forage level on portal concentration, difference venous arterial and portal flux of ammonia.
650 $aExigência nutricional
650 $aNutrição animal
650 $aOvino
653 $aRaça Suffolk
700 1 $aMOURO, G. F.
700 1 $aHARMON, D. L.
700 1 $aCONEGLIAN, S. M.
700 1 $aMAIA, F. J.
700 1 $aPROHMANN, P. E.
700 1 $aPARIS, W.
773 $tRevista Brasileira de Saúde e Produção Animal, Salvador$gv. 10, n. 4, p. 1010-1018, out./dez. 2009.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Territorial. |
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Data corrente: |
24/07/2023 |
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Data da última atualização: |
24/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
TEIXEIRA, A. H. DE C.; LEIVAS, J. F.; TAKEMURA, C. M.; SILVA, G. B. S. da; GARCON, E. A. M.; SOUSA, I.; CESAR SILVA. |
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Afiliação: |
ANTONIO HERIBERTO DE CASTRO TEIXEIRA, UNIVERSIDADE FEDERAL DE SERGIPE; JANICE FREITAS LEIVAS, CNPM; CELINA MAKI TAKEMURA, CNPM; GUSTAVO BAYMA SIQUEIRA DA SILVA, CNPMA; EDLENE APARECIDA MONTEIRO GARCON, CNPM; INAJÁ SOUSA, UNIVERSIDADE FEDERAL DE SERGIPE; SILVA, C., UNIVERSIDADE ESTADUAL DE CAMPINAS. |
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Título: |
Remote sensing environmental indicators for monitoring spatial and temporal dynamics of weather and vegetation conditions: applications for Brazilian biomes. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Environmental Monitoring and Assessment, v. 195, n. 944, 2023. |
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ISSN: |
1573-2959 |
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DOI: |
doi.org/10.1007/s10661-023-11560-8 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: The SAFER (Simple Algorithm for Evapotranspiration Retrieving) algorithm and the radiation use efficiency (RUE) model were coupled to test large-scale remote sensing environmental indicators in Brazilian biomes. MODIS MOD13Q1 reflectance product and gridded weather data for the year 2016 were used to demonstrate the suitability of the algorithm to monitor the dynamics of environmental remote sensing indicators along a year in the Brazilian biomes, Amazon, Caatinga, Cerrado, Pantanal, Atlantic Forest, and Pampa. Significant spatial and temporal variations in precipitation (P), actual evapotranspiration (ET), and biomass production (BIO) yielded differences on water balance (WB = P−ET) and water productivity (WP = ET/BIO). The highest WB and WP differences were detected in the wettest biomes, Amazon, Atlantic Forest, and Pampa, when compared with the driest biome, Caatinga. Rainfall distribution along the year affected the magnitude of the evaporative fraction (ETf), i.e., the ET to reference evapotranspiration (ET0) ratio. However, there was a gap between ETf and WB, which may be related to the time needed for recovering good soil moisture conditions after rainfalls. For some biomes, BIO related most to the levels of absorbed photosynthetically active radiation (Amazon and Atlantic Forest), while for others, BIO followed most the soil moisture levels, depicted by ETf (Caatinga, Cerrado, Pantanal, and Pampa). The large-scale modeling showed suitability for monitoring the water and vegetation conditions, making way to detect anomalies for specific periods along the year by using historical images and weather data, with strong potential to support public policies for management and conservation of natural resources and with possibilities for replication of the methods in other countries. MenosAbstract: The SAFER (Simple Algorithm for Evapotranspiration Retrieving) algorithm and the radiation use efficiency (RUE) model were coupled to test large-scale remote sensing environmental indicators in Brazilian biomes. MODIS MOD13Q1 reflectance product and gridded weather data for the year 2016 were used to demonstrate the suitability of the algorithm to monitor the dynamics of environmental remote sensing indicators along a year in the Brazilian biomes, Amazon, Caatinga, Cerrado, Pantanal, Atlantic Forest, and Pampa. Significant spatial and temporal variations in precipitation (P), actual evapotranspiration (ET), and biomass production (BIO) yielded differences on water balance (WB = P−ET) and water productivity (WP = ET/BIO). The highest WB and WP differences were detected in the wettest biomes, Amazon, Atlantic Forest, and Pampa, when compared with the driest biome, Caatinga. Rainfall distribution along the year affected the magnitude of the evaporative fraction (ETf), i.e., the ET to reference evapotranspiration (ET0) ratio. However, there was a gap between ETf and WB, which may be related to the time needed for recovering good soil moisture conditions after rainfalls. For some biomes, BIO related most to the levels of absorbed photosynthetically active radiation (Amazon and Atlantic Forest), while for others, BIO followed most the soil moisture levels, depicted by ETf (Caatinga, Cerrado, Pantanal, and Pampa). The large-scale modeling sho... Mostrar Tudo |
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Palavras-Chave: |
Precipitation; Water productivity. |
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Thesagro: |
Evapotranspiração; Sensoriamento Remoto. |
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Thesaurus NAL: |
Biomass production; Evapotranspiration; Water balance. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155228/1/6143.pdf
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Marc: |
LEADER 02832naa a2200301 a 4500
001 2155228
005 2023-07-24
008 2023 bl uuuu u00u1 u #d
022 $a1573-2959
024 7 $adoi.org/10.1007/s10661-023-11560-8$2DOI
100 1 $aTEIXEIRA, A. H. DE C.
245 $aRemote sensing environmental indicators for monitoring spatial and temporal dynamics of weather and vegetation conditions$bapplications for Brazilian biomes.$h[electronic resource]
260 $c2023
520 $aAbstract: The SAFER (Simple Algorithm for Evapotranspiration Retrieving) algorithm and the radiation use efficiency (RUE) model were coupled to test large-scale remote sensing environmental indicators in Brazilian biomes. MODIS MOD13Q1 reflectance product and gridded weather data for the year 2016 were used to demonstrate the suitability of the algorithm to monitor the dynamics of environmental remote sensing indicators along a year in the Brazilian biomes, Amazon, Caatinga, Cerrado, Pantanal, Atlantic Forest, and Pampa. Significant spatial and temporal variations in precipitation (P), actual evapotranspiration (ET), and biomass production (BIO) yielded differences on water balance (WB = P−ET) and water productivity (WP = ET/BIO). The highest WB and WP differences were detected in the wettest biomes, Amazon, Atlantic Forest, and Pampa, when compared with the driest biome, Caatinga. Rainfall distribution along the year affected the magnitude of the evaporative fraction (ETf), i.e., the ET to reference evapotranspiration (ET0) ratio. However, there was a gap between ETf and WB, which may be related to the time needed for recovering good soil moisture conditions after rainfalls. For some biomes, BIO related most to the levels of absorbed photosynthetically active radiation (Amazon and Atlantic Forest), while for others, BIO followed most the soil moisture levels, depicted by ETf (Caatinga, Cerrado, Pantanal, and Pampa). The large-scale modeling showed suitability for monitoring the water and vegetation conditions, making way to detect anomalies for specific periods along the year by using historical images and weather data, with strong potential to support public policies for management and conservation of natural resources and with possibilities for replication of the methods in other countries.
650 $aBiomass production
650 $aEvapotranspiration
650 $aWater balance
650 $aEvapotranspiração
650 $aSensoriamento Remoto
653 $aPrecipitation
653 $aWater productivity
700 1 $aLEIVAS, J. F.
700 1 $aTAKEMURA, C. M.
700 1 $aSILVA, G. B. S. da
700 1 $aGARCON, E. A. M.
700 1 $aSOUSA, I.
700 1 $aCESAR SILVA
773 $tEnvironmental Monitoring and Assessment$gv. 195, n. 944, 2023.
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Embrapa Territorial (CNPM) |
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