958 resultados para CU,ZN-SUPEROXIDE DISMUTASE
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Pós-graduação em Geociências e Meio Ambiente - IGCE
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Pós-graduação em Ciências Fisiológicas - FOA
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Agronomia (Horticultura) - FCA
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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This study was conducted to evaluate the performance and characteristics of manure produced by Saanen goats with 90, 120 and 150 days of age and fed three diets, diets 1 = 80 % roughage (R) and 20 % concentrate (C), diets 2 = 60 % R and 40 % C, diets 3 = 40 % R and 60 % C. Were evaluated 24 goats (divided into three groups according to diet ) during the fattening stage, making up the collection of waste at 90, 120 and 150 days of age to quantify the mass of manure produced each day, beyond the content of N, P, K, Ca, Mg, Na, Fe, Cu, Zn and Mn. The animals were weighed weekly and during the collection of waste is evaluated the digestibility of DM, CP and NDF, in addition to the estimate of feed conversion and rate of waste. The best results of feed conversion coefficient of waste and the apparent digestibilities of DM, CP and NDF occurred at the age of 150 days and in animals fed diets containing higher proportions of concentrate. Insofar as the increased age of the animal and level of concentrate in the diets were verified higher production of faeces. All nutrients were also affected, with higher concentrations occurred in the feces of animals at 150 days old and fed with diet 40% R and 60% C.
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The greenhouse production associated with the fertigation management, have established in Brazil as economical alternative for several horticultural species. With this strategy this study had as aim to evaluate possible impacts in the metabolism of plants of bell pepper (Capsicum annuum L.; cv Elisa) in response to the increase of mineral concentration in the soil. During the experiments, the some nutrient concentrations were altered, to obtain high values of electric conductivity (EC) in the soil solution. The EC values commonly observed in the traditional fertigation system were adopted, as control. It was also verified the possibility of reduction of the mineral stress impact by the application of organic matter in the soil. Parameters of the antioxidative response system, as the superoxide dismutase (SOD) and catalase enzyme activities besides the proline content were evaluated to measure the extension of the saline stress and their effects on the plants. The increase of EC of the soil induced to the increase of the proline concentration and the SOD activity. Unexpectedly, it was verified that the saline stress inhibited the activity of the enzyme catalase. It was also concluded that the monitoring of EC of the soil is an indispensable tool to reach success in the fertigation system and that the study of the activity of the enzymes of the antioxidative response system, and the proline contents can be assumed as indicators in of the levels of stress in bell pepper plants (Capsicum annuum L.; cv Elisa).
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)