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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
19/09/2016 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANJOS, A. J. DOS; GOMIDE, C. A. de M.; RIBEIRO, K. G.; MADEIRO, A. S.; MORENZ, M. J. F.; PACIULLO, D. S. C. |
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Afiliação: |
Albert José dos Anjos, Universidade Federal dos Vales do Jequitinhonha e Mucuri/UFVJM; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL; Karina Guimarães Ribeiro, UFV; Afrânio Silva Madeiro, UFRR; MIRTON JOSE FROTA MORENZ, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL. |
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Título: |
Forage mass and morphological composition of Marandu palisade grass pasture under rest periods. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 40, n. 1, p. 76-86, 2016. |
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DOI: |
http://dx.doi.org/10.1590/S1413-70542016000100007 |
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Idioma: |
Inglês |
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Conteúdo: |
An evaluation of productive potential is not the only factor used to determine grazing management efficiency; it is also necessary to know the structural characteristics of the canopy. The objective of this study was to evaluate the effects of two management styles on Marandu palisade grass pastures under rotational stocking with respect to the herbage mass, morphological composition, and structural characteristics of the pasture. The treatments under consideration were a) a fixed rest period of 30 days (RP30) or b) a rest period based on the time necessary for the canopy to reach 95% light interception (LI95). The experimental design was a completely randomized block with two blocks and three replicates within the blocks. Animals were placed in the paddocks when the grass reached the established management criteria, which were maintained for three days to reach 25 cm in stubble height. Shorter grazing intervals (22.8 vs. 30 days), lower pre-grazing heights (35.9 vs. 42.3 cm), and lower forage masses (4,411 vs. 5,290 kg/ha.cycle) were observed in LI95 pastures. The LI95 treatment had a higher leaf percentage (48.3 vs. 41.1) and the lowest percentage of dead forage (19.0 vs. 25.4) in the pre-grazing forage mass of the pasture in relation to that of RP30. Performing pasture management based on RP30 throughout the season is harmful to the pasture structure because it reduces the leaf percentage and increases the stem and senescent material in the available forage. The lower pre-grazing forage mass observed under LI95 management is offset by more grazing cycles within the rainy season. MenosAn evaluation of productive potential is not the only factor used to determine grazing management efficiency; it is also necessary to know the structural characteristics of the canopy. The objective of this study was to evaluate the effects of two management styles on Marandu palisade grass pastures under rotational stocking with respect to the herbage mass, morphological composition, and structural characteristics of the pasture. The treatments under consideration were a) a fixed rest period of 30 days (RP30) or b) a rest period based on the time necessary for the canopy to reach 95% light interception (LI95). The experimental design was a completely randomized block with two blocks and three replicates within the blocks. Animals were placed in the paddocks when the grass reached the established management criteria, which were maintained for three days to reach 25 cm in stubble height. Shorter grazing intervals (22.8 vs. 30 days), lower pre-grazing heights (35.9 vs. 42.3 cm), and lower forage masses (4,411 vs. 5,290 kg/ha.cycle) were observed in LI95 pastures. The LI95 treatment had a higher leaf percentage (48.3 vs. 41.1) and the lowest percentage of dead forage (19.0 vs. 25.4) in the pre-grazing forage mass of the pasture in relation to that of RP30. Performing pasture management based on RP30 throughout the season is harmful to the pasture structure because it reduces the leaf percentage and increases the stem and senescent material in the available forage. The lower pre... Mostrar Tudo |
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Palavras-Chave: |
Grazing cycle; Interception of photosynthetically active radiation; Leaf mass; Pre-grazing height. |
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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/147523/1/Cnpgl-2016-CiAgrotec-Forage.pdf
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Marc: |
LEADER 02404naa a2200241 a 4500
001 2053037
005 2024-02-06
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S1413-70542016000100007$2DOI
100 1 $aANJOS, A. J. DOS
245 $aForage mass and morphological composition of Marandu palisade grass pasture under rest periods.$h[electronic resource]
260 $c2016
520 $aAn evaluation of productive potential is not the only factor used to determine grazing management efficiency; it is also necessary to know the structural characteristics of the canopy. The objective of this study was to evaluate the effects of two management styles on Marandu palisade grass pastures under rotational stocking with respect to the herbage mass, morphological composition, and structural characteristics of the pasture. The treatments under consideration were a) a fixed rest period of 30 days (RP30) or b) a rest period based on the time necessary for the canopy to reach 95% light interception (LI95). The experimental design was a completely randomized block with two blocks and three replicates within the blocks. Animals were placed in the paddocks when the grass reached the established management criteria, which were maintained for three days to reach 25 cm in stubble height. Shorter grazing intervals (22.8 vs. 30 days), lower pre-grazing heights (35.9 vs. 42.3 cm), and lower forage masses (4,411 vs. 5,290 kg/ha.cycle) were observed in LI95 pastures. The LI95 treatment had a higher leaf percentage (48.3 vs. 41.1) and the lowest percentage of dead forage (19.0 vs. 25.4) in the pre-grazing forage mass of the pasture in relation to that of RP30. Performing pasture management based on RP30 throughout the season is harmful to the pasture structure because it reduces the leaf percentage and increases the stem and senescent material in the available forage. The lower pre-grazing forage mass observed under LI95 management is offset by more grazing cycles within the rainy season.
653 $aGrazing cycle
653 $aInterception of photosynthetically active radiation
653 $aLeaf mass
653 $aPre-grazing height
700 1 $aGOMIDE, C. A. de M.
700 1 $aRIBEIRO, K. G.
700 1 $aMADEIRO, A. S.
700 1 $aMORENZ, M. J. F.
700 1 $aPACIULLO, D. S. C.
773 $tCiência e Agrotecnologia$gv. 40, n. 1, p. 76-86, 2016.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Amazônia Oriental. |
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Data corrente: |
11/03/2010 |
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Data da última atualização: |
16/11/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CANDÉA, T. V.; NAKANO, L. A.; MATTIETTO, R. A.; CABRAL, L. M. C.; MATTA, V. M. |
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Afiliação: |
T. V. CANDÉA, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; L. A. NAKANO, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; RAFAELLA DE ANDRADE MATTIETTO, CPATU; LOURDES MARIA CORREA CABRAL, CTAA; VIRGINIA MARTINS DA MATTA, CTAA. |
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Título: |
Formulation and quality evaluation of a clarified mixed fruit juice. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: EUROPEAN FEDERATION OF FOOD SCIENCE AND TECHNOLOGY CONFERENCE, 2009, Budapest. New Challenges in food preservation: processing - safety - sustainability. [S.l.]: Effost, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
Fruit juice marketing has been continuously increasing all over the world due to the consumers search by natural and healthy products added to their potentiality as functional. The objective of this work was to study the formulation of a clarified mixed fruit juice based on their bioactive compounds. The raw materials were açaí pulp, pineapple and grape juice, chosen due to their composition on sugars and organic acids aiming at sensory acceptability and bioactive composition. Açaí and pineapple were clarified by microfiltration using ceramic membranes with 0.022m2 of filtration surface and their permeate fractions were collected in sanitized packages and afterwards frozen storage. The commercial pure grape juice is already clarified and did not require this process step. A two factor simplex-centroid design was used for the formulation, fixing the açaí juice concentration and varying only the two other juices contents performing five treatments. The formulated juices were analyzed for determination of anthocyanins and total phenolics. The results showed an expected behavior of a positive correlation between the concentrations of these functional classes of compounds and the grape juice content. As the açaí concentration is fixed, grape is the component richer in both phenolics and anthocyanins, which explain the results. The formulation containing 20% açaí, 80% pineapple and no grape presented the lowest values, 4.34 mg/100g anthocyanins and 68.95 mg/100g total phenolics, while the highest values, 20.87 mg/100g anthocyanins and 175.21 mg/100g phenolics were verified in the formulation that contained 20% açaí, no pineapple and 80% grape. The Tukey test showed significant difference between the five formulations with 95% of probability. MenosFruit juice marketing has been continuously increasing all over the world due to the consumers search by natural and healthy products added to their potentiality as functional. The objective of this work was to study the formulation of a clarified mixed fruit juice based on their bioactive compounds. The raw materials were açaí pulp, pineapple and grape juice, chosen due to their composition on sugars and organic acids aiming at sensory acceptability and bioactive composition. Açaí and pineapple were clarified by microfiltration using ceramic membranes with 0.022m2 of filtration surface and their permeate fractions were collected in sanitized packages and afterwards frozen storage. The commercial pure grape juice is already clarified and did not require this process step. A two factor simplex-centroid design was used for the formulation, fixing the açaí juice concentration and varying only the two other juices contents performing five treatments. The formulated juices were analyzed for determination of anthocyanins and total phenolics. The results showed an expected behavior of a positive correlation between the concentrations of these functional classes of compounds and the grape juice content. As the açaí concentration is fixed, grape is the component richer in both phenolics and anthocyanins, which explain the results. The formulation containing 20% açaí, 80% pineapple and no grape presented the lowest values, 4.34 mg/100g anthocyanins and 68.95 mg/100g total phenolics, w... Mostrar Tudo |
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Thesagro: |
Açaí; Clarificação; Fruta Tropical; Suco de Fruta. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/93770/1/Sp6247.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/71061/1/2009-223.pdf
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Marc: |
LEADER 02467nam a2200205 a 4500
001 1660800
005 2022-11-16
008 2009 bl uuuu u00u1 u #d
100 1 $aCANDÉA, T. V.
245 $aFormulation and quality evaluation of a clarified mixed fruit juice.
260 $aIn: EUROPEAN FEDERATION OF FOOD SCIENCE AND TECHNOLOGY CONFERENCE, 2009, Budapest. New Challenges in food preservation: processing - safety - sustainability. [S.l.]: Effost$c2009
520 $aFruit juice marketing has been continuously increasing all over the world due to the consumers search by natural and healthy products added to their potentiality as functional. The objective of this work was to study the formulation of a clarified mixed fruit juice based on their bioactive compounds. The raw materials were açaí pulp, pineapple and grape juice, chosen due to their composition on sugars and organic acids aiming at sensory acceptability and bioactive composition. Açaí and pineapple were clarified by microfiltration using ceramic membranes with 0.022m2 of filtration surface and their permeate fractions were collected in sanitized packages and afterwards frozen storage. The commercial pure grape juice is already clarified and did not require this process step. A two factor simplex-centroid design was used for the formulation, fixing the açaí juice concentration and varying only the two other juices contents performing five treatments. The formulated juices were analyzed for determination of anthocyanins and total phenolics. The results showed an expected behavior of a positive correlation between the concentrations of these functional classes of compounds and the grape juice content. As the açaí concentration is fixed, grape is the component richer in both phenolics and anthocyanins, which explain the results. The formulation containing 20% açaí, 80% pineapple and no grape presented the lowest values, 4.34 mg/100g anthocyanins and 68.95 mg/100g total phenolics, while the highest values, 20.87 mg/100g anthocyanins and 175.21 mg/100g phenolics were verified in the formulation that contained 20% açaí, no pineapple and 80% grape. The Tukey test showed significant difference between the five formulations with 95% of probability.
650 $aAçaí
650 $aClarificação
650 $aFruta Tropical
650 $aSuco de Fruta
700 1 $aNAKANO, L. A.
700 1 $aMATTIETTO, R. A.
700 1 $aCABRAL, L. M. C.
700 1 $aMATTA, V. M.
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Embrapa Amazônia Oriental (CPATU) |
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