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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
01/02/2017 |
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Data da última atualização: |
08/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CRUZ, J. L.; ALVES, A. A. C.; LECAIN, D. R.; ELLIS, D. D.; MORGAN, J. A. |
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Afiliação: |
JAILSON LOPES CRUZ, CNPMF; ALFREDO AUGUSTO CUNHA ALVES, CNPMF; DANIEL R. LECAIN, USDA-ARS; DAVID D. ELLIS, International Potato Center; JACK A. MORGAN, USDA-ARS. |
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Título: |
Elevated CO2 concentrations alleviate the inhibitory effect of drought on physiology and growth of cassava plants. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Scientia Horticulturae, v. 210 p. 122?129, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Due to the rise in anthropogenic greenhouse gas concentrations, the earth's climate is expected to change, with precipitation being reduced in some areas resulting in growth-limiting drought and, as a consequence, reduced plant productivity. We investigated the physiological and growth responses of cassava (Manihot esculenta Crantz) to approximate present-day ambient (390 ?L L?1) and elevated (750 ?L L?1) atmospheric CO2 concentrations under well-watered and water deficit conditions, aiming at understanding how cassava would face those problems. Water deficits led to reductions in the Leaf Elongation Rate of plants grown at ambient as well as CO2-enriched concentrations. However, plants grown at 750 ?L L?1 of CO2 maintained leaf growth two days longer than plants grown at 390 ?L L?1. Three Days After Withholding Water (DAWW), photosynthesis and stomatal conductance were reduced in plants grown under ambient CO2, while in plants under an elevated CO2 concentration, these physiological functions remained similar to that of control plants grown under good water availability. Five DAWW plants grown with 750 ?L L?1 continued to have enhanced gas exchange compared with plants grown under 390 ?L L?1. Under drought stress, the instantaneous transpiration efficiency was always greatest for plants grown under elevated CO2. The positive response of elevated CO2 levels on total dry mass was 61% in the water-stressed plants and only 20% for the plants grown under good water availability. Stomatal limitation was an important factor reducing CO2 assimilation in cassava growing under drought conditions. MenosDue to the rise in anthropogenic greenhouse gas concentrations, the earth's climate is expected to change, with precipitation being reduced in some areas resulting in growth-limiting drought and, as a consequence, reduced plant productivity. We investigated the physiological and growth responses of cassava (Manihot esculenta Crantz) to approximate present-day ambient (390 ?L L?1) and elevated (750 ?L L?1) atmospheric CO2 concentrations under well-watered and water deficit conditions, aiming at understanding how cassava would face those problems. Water deficits led to reductions in the Leaf Elongation Rate of plants grown at ambient as well as CO2-enriched concentrations. However, plants grown at 750 ?L L?1 of CO2 maintained leaf growth two days longer than plants grown at 390 ?L L?1. Three Days After Withholding Water (DAWW), photosynthesis and stomatal conductance were reduced in plants grown under ambient CO2, while in plants under an elevated CO2 concentration, these physiological functions remained similar to that of control plants grown under good water availability. Five DAWW plants grown with 750 ?L L?1 continued to have enhanced gas exchange compared with plants grown under 390 ?L L?1. Under drought stress, the instantaneous transpiration efficiency was always greatest for plants grown under elevated CO2. The positive response of elevated CO2 levels on total dry mass was 61% in the water-stressed plants and only 20% for the plants grown under good water availability.... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Thesaurus Nal: |
Cassava. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02191naa a2200193 a 4500
001 2062496
005 2017-02-08
008 2016 bl uuuu u00u1 u #d
100 1 $aCRUZ, J. L.
245 $aElevated CO2 concentrations alleviate the inhibitory effect of drought on physiology and growth of cassava plants.$h[electronic resource]
260 $c2016
520 $aDue to the rise in anthropogenic greenhouse gas concentrations, the earth's climate is expected to change, with precipitation being reduced in some areas resulting in growth-limiting drought and, as a consequence, reduced plant productivity. We investigated the physiological and growth responses of cassava (Manihot esculenta Crantz) to approximate present-day ambient (390 ?L L?1) and elevated (750 ?L L?1) atmospheric CO2 concentrations under well-watered and water deficit conditions, aiming at understanding how cassava would face those problems. Water deficits led to reductions in the Leaf Elongation Rate of plants grown at ambient as well as CO2-enriched concentrations. However, plants grown at 750 ?L L?1 of CO2 maintained leaf growth two days longer than plants grown at 390 ?L L?1. Three Days After Withholding Water (DAWW), photosynthesis and stomatal conductance were reduced in plants grown under ambient CO2, while in plants under an elevated CO2 concentration, these physiological functions remained similar to that of control plants grown under good water availability. Five DAWW plants grown with 750 ?L L?1 continued to have enhanced gas exchange compared with plants grown under 390 ?L L?1. Under drought stress, the instantaneous transpiration efficiency was always greatest for plants grown under elevated CO2. The positive response of elevated CO2 levels on total dry mass was 61% in the water-stressed plants and only 20% for the plants grown under good water availability. Stomatal limitation was an important factor reducing CO2 assimilation in cassava growing under drought conditions.
650 $aCassava
650 $aMandioca
700 1 $aALVES, A. A. C.
700 1 $aLECAIN, D. R.
700 1 $aELLIS, D. D.
700 1 $aMORGAN, J. A.
773 $tScientia Horticulturae$gv. 210 p. 122?129, 2016.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
21/09/2018 |
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Data da última atualização: |
14/01/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ARAÚJO, R. A. de; NEIVA, J. N. M.; POMPEU, R. C. F. F.; CÂNDIDO, M. J. D.; ROGERIO, M. C. P.; LUCAS, R. C.; MARANHÃO, S. R.; FONTINELE, R. G.; EGITO, A. S. do. |
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Afiliação: |
RICARDO ALVES DE ARAÚJO, UNIVERSIDADE FEDERAL DO CEARÁ; JOSÉ NEUMAN MIRANDA NEIVA, UNIVERSIDADE FEDERAL DO TOCANTINS; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; MAGNO JOSÉ DUARTE CÂNDIDO, UNIVERSIDADE FEDERAL DO CEARÁ; MARCOS CLAUDIO PINHEIRO ROGERIO, CNPC; RONALDO CARLOS LUCAS, UNIVERSIDADE FEDERAL DO CEARÁ; SAMUEL ROCHA MARANHÃO, UNIVERSIDADE FEDERAL DO CEARÁ; RENATO GOMES FONTINELE; ANTONIO SILVIO DO EGITO VASCONCELOS, CNPC. |
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Título: |
Feeding behavior and physiological parameters of rearing goats fed diets containing detoxified castor cake. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 39, n. 5, p. 2247-2260, set./out. 2018. |
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DOI: |
10.5433/1679-0359.2018v39n5p2247 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: The objective of this study was to evaluate the influence of replacing soybean meal (SM) with castor bean cake (DCC), detoxified using two alkaline products, on the feeding behavior and physiological parameters of Saanen and Anglo-Nubian goat breeds with an initial body weight of 16.22 ± 0.67 kg. The treatments consisted of three diets that were isoproteic and isoenergetic: the first with a standard formulation based on corn and SM, the second with DCC detoxified using calcium hydroxide (Ca(OH)2 DCC), and the third with DCC detoxified using sodium hydroxide (NaOH DCC). A completely randomized design with a 3 × 2 (diets and breeds) factorial arrangement and four replicates per combination was used. A dietary effect on the intake of dry matter (DM) and NDFap (P = 0.02 and 0.01) was observed, with lower values for goats fed NaOH DCC than the other diets. The diets influenced feeding and rumination times (P = 0.04 and 0.03). An interaction (P = 0.04 and 0.01) between the breeds and the SM-based diet was found for time variables (other activity and idle time). Increased feeding and neutral detergent fiber (NDF) rumination efficiencies were observed for goats fed SM and Ca(OH)2 DCC (P = 0.03 and 0.01). Goats fed the NaOH DCC diet consumed large amounts of water, while Saanen goats urinated more times than did Anglo-Nubian goats. The diets had an effect on the heart rate and rectal temperature (P = 0.01 and 0.02), while the body surface temperature was influenced by the breed. Thus, Ca(OH)2 or NaOH DCC has a great potential to replace SM in the feeding of dairy goats. When used as diet for goats in the growth phase, NaOH DCC causes a reduction of DM and NDF intakes. Neither DCC negatively affected the physiological parameters of goats. [Comportamento alimentar e parâmetros fisiológicos de cabritas recriadas consumindo dietas contendo torta de mamona destoxificada]. Resumo: Objetivou-se avaliar a influência da substituição do farelo de soja (FS) pela torta de mamona destoxificada (TMD) por dois produtos alcalinos sobre o comportamento alimentar e parâmetros fisiológicos de cabritas das raças Saanen e Anglo-nubiana, com peso corporal inicial de 16,22 ± 0,67 kg. Os tratamentos consistiram de três dietas, uma com formulação padrão à base de milho e FS e as demais foram formuladas com torta de mamona destoxificada por hidróxido de cálcio (TMD Ca(OH)2 ) e outra por hidróxido de sódio (TMD NaOH), as quais foram isoproteicas e isoenergéticas. Utilizouse um delineamento inteiramente casualizado, com arranjo fatorial 3 x 2 (dieta e raça) com quatro repetições por combinação. Houve efeito das dietas sobre o consumo de MS e FDNcp (P= 0,02 e 0,01), com menores valores para as cabras alimentadas com TMD NaOH. As dietas influenciaram os tempos de alimentação e ruminação (P= 0,04 e 0,03). Houve interação (P= 0,04 e 0,01) entre as raças e dieta à base de FS para as variáveis tempo com outras atividade e ócio. Observou-se maiores eficiências de alimentação e ruminação da FDN para as cabras que consumiram FS e TMD Ca(OH)2 (P= 0,03 e 0,01). As cabras da dieta TMD NaOH consumiram maiores quantidades de água e as Saanen urinaram mais vezes que as Anglo-nubiana. Houve efeito das dietas sobre a frequência cardíaca e temperatura retal (P= 0,01 e 0,02), já a temperatura corporal foi influenciada pelas raças. A torta de mamona destoxificada pelo hidróxido de cálcio e/ou hidróxido de sódio tem grande potencial para substituir o farelo de soja na alimentação de cabras leiteiras. Quando usado na composição de dietas para caprinos em fase de crescimento, a torta de mamona destoxificada pelo hidróxido de sódio leva à redução do CMS, bem como da FDN. Ambas as tortas não alteram negativamente os parâmetros fisiológicos das cabras.. MenosAbstract: The objective of this study was to evaluate the influence of replacing soybean meal (SM) with castor bean cake (DCC), detoxified using two alkaline products, on the feeding behavior and physiological parameters of Saanen and Anglo-Nubian goat breeds with an initial body weight of 16.22 ± 0.67 kg. The treatments consisted of three diets that were isoproteic and isoenergetic: the first with a standard formulation based on corn and SM, the second with DCC detoxified using calcium hydroxide (Ca(OH)2 DCC), and the third with DCC detoxified using sodium hydroxide (NaOH DCC). A completely randomized design with a 3 × 2 (diets and breeds) factorial arrangement and four replicates per combination was used. A dietary effect on the intake of dry matter (DM) and NDFap (P = 0.02 and 0.01) was observed, with lower values for goats fed NaOH DCC than the other diets. The diets influenced feeding and rumination times (P = 0.04 and 0.03). An interaction (P = 0.04 and 0.01) between the breeds and the SM-based diet was found for time variables (other activity and idle time). Increased feeding and neutral detergent fiber (NDF) rumination efficiencies were observed for goats fed SM and Ca(OH)2 DCC (P = 0.03 and 0.01). Goats fed the NaOH DCC diet consumed large amounts of water, while Saanen goats urinated more times than did Anglo-Nubian goats. The diets had an effect on the heart rate and rectal temperature (P = 0.01 and 0.02), while the body surface temperature was influenced by the b... Mostrar Tudo |
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Palavras-Chave: |
Caprino leiteiro; Feed conversion efficiency; Raça Anglo-Nubiana; Raça Saanen; Torta de mamona. |
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Thesagro: |
Água; Alimento Para Animal; Cabra Leiteira; Cálcio; Dieta; Farelo; Habito Alimentar; Nutrição Animal; Ricinus Communis; Ruminação; Sódio; Subproduto. |
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Thesaurus NAL: |
Animal behavior; Animal feeders; Animal nutrition; Brazil; Byproducts; Consumer behavior; Dairy goats; Diet; Feeding behavior; Semiarid zones; Water. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1096106/1/cnpc2018Feeding.pdf
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Marc: |
LEADER 05404naa a2200565 a 4500
001 2096106
005 2025-01-14
008 2018 bl uuuu u00u1 u #d
024 7 $a10.5433/1679-0359.2018v39n5p2247$2DOI
100 1 $aARAÚJO, R. A. de
245 $aFeeding behavior and physiological parameters of rearing goats fed diets containing detoxified castor cake.$h[electronic resource]
260 $c2018
520 $aAbstract: The objective of this study was to evaluate the influence of replacing soybean meal (SM) with castor bean cake (DCC), detoxified using two alkaline products, on the feeding behavior and physiological parameters of Saanen and Anglo-Nubian goat breeds with an initial body weight of 16.22 ± 0.67 kg. The treatments consisted of three diets that were isoproteic and isoenergetic: the first with a standard formulation based on corn and SM, the second with DCC detoxified using calcium hydroxide (Ca(OH)2 DCC), and the third with DCC detoxified using sodium hydroxide (NaOH DCC). A completely randomized design with a 3 × 2 (diets and breeds) factorial arrangement and four replicates per combination was used. A dietary effect on the intake of dry matter (DM) and NDFap (P = 0.02 and 0.01) was observed, with lower values for goats fed NaOH DCC than the other diets. The diets influenced feeding and rumination times (P = 0.04 and 0.03). An interaction (P = 0.04 and 0.01) between the breeds and the SM-based diet was found for time variables (other activity and idle time). Increased feeding and neutral detergent fiber (NDF) rumination efficiencies were observed for goats fed SM and Ca(OH)2 DCC (P = 0.03 and 0.01). Goats fed the NaOH DCC diet consumed large amounts of water, while Saanen goats urinated more times than did Anglo-Nubian goats. The diets had an effect on the heart rate and rectal temperature (P = 0.01 and 0.02), while the body surface temperature was influenced by the breed. Thus, Ca(OH)2 or NaOH DCC has a great potential to replace SM in the feeding of dairy goats. When used as diet for goats in the growth phase, NaOH DCC causes a reduction of DM and NDF intakes. Neither DCC negatively affected the physiological parameters of goats. [Comportamento alimentar e parâmetros fisiológicos de cabritas recriadas consumindo dietas contendo torta de mamona destoxificada]. Resumo: Objetivou-se avaliar a influência da substituição do farelo de soja (FS) pela torta de mamona destoxificada (TMD) por dois produtos alcalinos sobre o comportamento alimentar e parâmetros fisiológicos de cabritas das raças Saanen e Anglo-nubiana, com peso corporal inicial de 16,22 ± 0,67 kg. Os tratamentos consistiram de três dietas, uma com formulação padrão à base de milho e FS e as demais foram formuladas com torta de mamona destoxificada por hidróxido de cálcio (TMD Ca(OH)2 ) e outra por hidróxido de sódio (TMD NaOH), as quais foram isoproteicas e isoenergéticas. Utilizouse um delineamento inteiramente casualizado, com arranjo fatorial 3 x 2 (dieta e raça) com quatro repetições por combinação. Houve efeito das dietas sobre o consumo de MS e FDNcp (P= 0,02 e 0,01), com menores valores para as cabras alimentadas com TMD NaOH. As dietas influenciaram os tempos de alimentação e ruminação (P= 0,04 e 0,03). Houve interação (P= 0,04 e 0,01) entre as raças e dieta à base de FS para as variáveis tempo com outras atividade e ócio. Observou-se maiores eficiências de alimentação e ruminação da FDN para as cabras que consumiram FS e TMD Ca(OH)2 (P= 0,03 e 0,01). As cabras da dieta TMD NaOH consumiram maiores quantidades de água e as Saanen urinaram mais vezes que as Anglo-nubiana. Houve efeito das dietas sobre a frequência cardíaca e temperatura retal (P= 0,01 e 0,02), já a temperatura corporal foi influenciada pelas raças. A torta de mamona destoxificada pelo hidróxido de cálcio e/ou hidróxido de sódio tem grande potencial para substituir o farelo de soja na alimentação de cabras leiteiras. Quando usado na composição de dietas para caprinos em fase de crescimento, a torta de mamona destoxificada pelo hidróxido de sódio leva à redução do CMS, bem como da FDN. Ambas as tortas não alteram negativamente os parâmetros fisiológicos das cabras..
650 $aAnimal behavior
650 $aAnimal feeders
650 $aAnimal nutrition
650 $aBrazil
650 $aByproducts
650 $aConsumer behavior
650 $aDairy goats
650 $aDiet
650 $aFeeding behavior
650 $aSemiarid zones
650 $aWater
650 $aÁgua
650 $aAlimento Para Animal
650 $aCabra Leiteira
650 $aCálcio
650 $aDieta
650 $aFarelo
650 $aHabito Alimentar
650 $aNutrição Animal
650 $aRicinus Communis
650 $aRuminação
650 $aSódio
650 $aSubproduto
653 $aCaprino leiteiro
653 $aFeed conversion efficiency
653 $aRaça Anglo-Nubiana
653 $aRaça Saanen
653 $aTorta de mamona
700 1 $aNEIVA, J. N. M.
700 1 $aPOMPEU, R. C. F. F.
700 1 $aCÂNDIDO, M. J. D.
700 1 $aROGERIO, M. C. P.
700 1 $aLUCAS, R. C.
700 1 $aMARANHÃO, S. R.
700 1 $aFONTINELE, R. G.
700 1 $aEGITO, A. S. do
773 $tSemina: Ciências Agrárias$gv. 39, n. 5, p. 2247-2260, set./out. 2018.
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