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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
28/05/1998 |
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Data da última atualização: |
04/11/2015 |
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Autoria: |
ROCHA, A.; COSTA, F. M.; SHUHAMA, I. K.; CERDEIRA, A. L.; UETA, J. |
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Afiliação: |
FCFRP/USP; FCFRP/USP; FCFRP/USP; ANTONIO LUIZ CERDEIRA, CNPMA; FCFRP/USP. |
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Título: |
Effects of 2,4-D and atrazine on microbial population of different soils from a sugarcane plantation area. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997, Ribeirao Preto, SP. Bolletino Chimico Farmaceutico, v.136, p.192, 1997. Abstract. |
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Idioma: |
Inglês |
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Conteúdo: |
Soil degradation and contamination by chemical residues of agricultural origin, particularly nitrates, metals, and pesticides, as well the presence of agrochemicals and their degradation products on surface and groundwater, jeopardizing the environment and human health, have been documented in numerous scientific papers. Brazil, the 5th highest consumer of pesticides, (mainly herbicides used in sugarcane, and rice production) has a diverse variety of ecological systems. So, it is valuable to study the impact of intensive agriculture on these systems. Studies have identified an area of high risk of groundwater contamination by agrochemicals, since geological formation of the region exposes a natural vulnerability of an aquifer just below (100m), associated to the intense use of agrochemicals highly susceptible to infiltration. This area is located in the region of Ribeirao Preto, State of Sao Paulo, covered by aquifer "Botucatu", main reserve of State's water supply, and these conditions are very susceptible to groundwater contamination. The "clean up" of sites already contaminated can be achieved by remediation techniques. Biological treatment systems can reduce or destroy residues and are seen as an option for clean-up strategy. Bioremediation was devised to exploit the genetic diversity and metabolic versatility of microorganisms in transforming contaminants into less harmful products that can be integrated into natural biogeochemical cycles. In order to study the incorporation of selected soil microorganisms in delivery systems as a model system for bioremediation processes, we have beem studying the interaction of herbicides with the microbial population by a characterization of this population, specially those can affect the degradation of herbicides. Soils with diverse characteristics were sampled monthly from the area described above, (09 points at 0-20 and 80-90 cm depth), covered with sugarcane. Those fresh samples were weighed (5g) and suspended in 50ml of sterilized water and incubated with agitation (150 rpm) at room temperature for 3h, for the initial determination of the viable microbial population in YP Glucose plates. Then, each 10ml of every soil suspension was incubated for 28 days with yeast nitrogen base medium (YNB) containing atrazine (1 mg/ml) or 2,4-D (0.5mg/ml). Every week, the viable microbial population from control, atrazine and 2,4-D treated suspension was determined by plate counting and documented by photography. Meantime, pH,organic matter and humidity of the soil samples have been determined. The results have shown both herbicides affected the microbial population present in the soils. The behavior of the microbial population has changed from May to June and July, when it was observed a significant fall in the pH, (>0.5) and a raise in organic matter (>1.0) in every sample. Those variations in pH and organic matter are probably due to soil manipulation, affecting also the micoorganisms present, revealed by atrazine and 2,4-D treatment. The analysis of the herbicides treatment has shown a 2,4-D growth inhibition of every 0-20cm depth sample from February to May. June (O-20cm) and most of June, July and August (80-90cm) samples were inhibited by atrazine, while September samples were drastically inhibited by 2,4-D. Atrazine and 2,4-D, most of the time, act antagonically, (one inhibits the other stimulates growth and vice-versa). During herbicides treatment a selection is observed restricting the microorganisms to one or few more species. Those representing every month profile were isolated for further studies. MenosSoil degradation and contamination by chemical residues of agricultural origin, particularly nitrates, metals, and pesticides, as well the presence of agrochemicals and their degradation products on surface and groundwater, jeopardizing the environment and human health, have been documented in numerous scientific papers. Brazil, the 5th highest consumer of pesticides, (mainly herbicides used in sugarcane, and rice production) has a diverse variety of ecological systems. So, it is valuable to study the impact of intensive agriculture on these systems. Studies have identified an area of high risk of groundwater contamination by agrochemicals, since geological formation of the region exposes a natural vulnerability of an aquifer just below (100m), associated to the intense use of agrochemicals highly susceptible to infiltration. This area is located in the region of Ribeirao Preto, State of Sao Paulo, covered by aquifer "Botucatu", main reserve of State's water supply, and these conditions are very susceptible to groundwater contamination. The "clean up" of sites already contaminated can be achieved by remediation techniques. Biological treatment systems can reduce or destroy residues and are seen as an option for clean-up strategy. Bioremediation was devised to exploit the genetic diversity and metabolic versatility of microorganisms in transforming contaminants into less harmful products that can be integrated into natural biogeochemical cycles. In order to study the incorpor... Mostrar Tudo |
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Thesagro: |
Cana de açucar; Fungicida; Impacto ambiental; População microbiana; Solo. |
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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/item/132370/1/1997AP001.pdf
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Marc: |
LEADER 04345nam a2200217 a 4500
001 1012900
005 2015-11-04
008 1997 bl uuuu u00u1 u #d
100 1 $aROCHA, A.
245 $aEffects of 2,4-D and atrazine on microbial population of different soils from a sugarcane plantation area.$h[electronic resource]
260 $aIn: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997, Ribeirao Preto, SP. Bolletino Chimico Farmaceutico, v.136, p.192, 1997. Abstract.$c1997
520 $aSoil degradation and contamination by chemical residues of agricultural origin, particularly nitrates, metals, and pesticides, as well the presence of agrochemicals and their degradation products on surface and groundwater, jeopardizing the environment and human health, have been documented in numerous scientific papers. Brazil, the 5th highest consumer of pesticides, (mainly herbicides used in sugarcane, and rice production) has a diverse variety of ecological systems. So, it is valuable to study the impact of intensive agriculture on these systems. Studies have identified an area of high risk of groundwater contamination by agrochemicals, since geological formation of the region exposes a natural vulnerability of an aquifer just below (100m), associated to the intense use of agrochemicals highly susceptible to infiltration. This area is located in the region of Ribeirao Preto, State of Sao Paulo, covered by aquifer "Botucatu", main reserve of State's water supply, and these conditions are very susceptible to groundwater contamination. The "clean up" of sites already contaminated can be achieved by remediation techniques. Biological treatment systems can reduce or destroy residues and are seen as an option for clean-up strategy. Bioremediation was devised to exploit the genetic diversity and metabolic versatility of microorganisms in transforming contaminants into less harmful products that can be integrated into natural biogeochemical cycles. In order to study the incorporation of selected soil microorganisms in delivery systems as a model system for bioremediation processes, we have beem studying the interaction of herbicides with the microbial population by a characterization of this population, specially those can affect the degradation of herbicides. Soils with diverse characteristics were sampled monthly from the area described above, (09 points at 0-20 and 80-90 cm depth), covered with sugarcane. Those fresh samples were weighed (5g) and suspended in 50ml of sterilized water and incubated with agitation (150 rpm) at room temperature for 3h, for the initial determination of the viable microbial population in YP Glucose plates. Then, each 10ml of every soil suspension was incubated for 28 days with yeast nitrogen base medium (YNB) containing atrazine (1 mg/ml) or 2,4-D (0.5mg/ml). Every week, the viable microbial population from control, atrazine and 2,4-D treated suspension was determined by plate counting and documented by photography. Meantime, pH,organic matter and humidity of the soil samples have been determined. The results have shown both herbicides affected the microbial population present in the soils. The behavior of the microbial population has changed from May to June and July, when it was observed a significant fall in the pH, (>0.5) and a raise in organic matter (>1.0) in every sample. Those variations in pH and organic matter are probably due to soil manipulation, affecting also the micoorganisms present, revealed by atrazine and 2,4-D treatment. The analysis of the herbicides treatment has shown a 2,4-D growth inhibition of every 0-20cm depth sample from February to May. June (O-20cm) and most of June, July and August (80-90cm) samples were inhibited by atrazine, while September samples were drastically inhibited by 2,4-D. Atrazine and 2,4-D, most of the time, act antagonically, (one inhibits the other stimulates growth and vice-versa). During herbicides treatment a selection is observed restricting the microorganisms to one or few more species. Those representing every month profile were isolated for further studies.
650 $aCana de açucar
650 $aFungicida
650 $aImpacto ambiental
650 $aPopulação microbiana
650 $aSolo
700 1 $aCOSTA, F. M.
700 1 $aSHUHAMA, I. K.
700 1 $aCERDEIRA, A. L.
700 1 $aUETA, J.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/11/2022 |
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Data da última atualização: |
25/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
PIMENTEL, S. C. R.; CARDOSO, I. L.; FERRI, G. H.; SILVA, L. C.; QUEIROZ, J. F. de; IVO, M. A.; ISHIKAWA, M. M. |
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Afiliação: |
SILVIO CESAR PIMENTEL RUSSIO, Centro Universitário de Jaguariúna; ISRAEL LUZ CARDOSO, UNIVERSIDADE FEDERAL DE SÃO CARLOS; GIOVANNI HENRIQUE FERR, UNIVERSIDADE ESTADUAL DE CAMPINAS; LARISSA CAROLINE SILVA, CNETRO UNIVERSITÁRIO DE JAGUARIÚNA; JULIO FERRAZ DE QUEIROZ, CNPMA; MARCOS ALEXANDRE IVO, CENTRO UNIVERSITÁRIO DE JAGUARIÚNA; MARCIA MAYUMI ISHIKAWA, CNPMA. |
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Título: |
Use of earthworm (Eisenia fetida) meal as a supplement for feeding tilapia juveniles (Oreochromis niloticus). |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
International Journal of Scientific Research Updates, v. 4, n. 2, p. 86-91, 2022. |
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ISSN: |
2783-0160 |
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DOI: |
https://doi.org/10.53430/ijsru.2022.4.2.0154 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Earthworm meal comprises a class of food additives with potential to replace or supplement conventional proteins used in fish feed. Considering the potential of earthworm meal, as a protein source for fish feed, this study aimed to investigate the productive performance and the hematological profile of Nile tilapia juveniles fed with a commercial diet enriched with earthworm meal at levels (0.0; 5.0, 10 and 20%). The assay was conducted for 32 days and the productive performance and hematology profile of the animals were evaluated. Tilapia juveniles (n=144; 25.30±3.27g) were distributed in 12 aquariums (300 L) in a static system with partial water changes. The experimental design was completely randomized with four treatments and three replications. There were no significant differences (p>0.05) for performance responses and hematological profile related to variables on hematocrit and CHCM. However, for hemoglobin values the treatment with 20% earthworm meal was similar to the treatments with 5 and 10% earthworm meal, and significantly differed from the control treatment, suggesting its potential as a fish feed supplement. Thus, earthworm meal can be used at 5, 10, and 20% as a supplement for Nile tilapia juveniles without compromising their performance and hematological profile. |
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Palavras-Chave: |
Fish farm; Food supplement; Hematological response; Performance response. |
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Thesagro: |
Alimentação Suplementar; Minhoca; Nutrição Animal; Suplemento Protéico; Tilápia Nilótica. |
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Thesaurus NAL: |
Earthworms; Fish farms; Protein supplements; Tilapia (common name). |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148775/1/Queiroz-Use-earthworm-2022.pdf
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Marc: |
LEADER 02463naa a2200373 a 4500
001 2148775
005 2022-11-25
008 2022 bl uuuu u00u1 u #d
022 $a2783-0160
024 7 $ahttps://doi.org/10.53430/ijsru.2022.4.2.0154$2DOI
100 1 $aPIMENTEL, S. C. R.
245 $aUse of earthworm (Eisenia fetida) meal as a supplement for feeding tilapia juveniles (Oreochromis niloticus).$h[electronic resource]
260 $c2022
520 $aAbstract: Earthworm meal comprises a class of food additives with potential to replace or supplement conventional proteins used in fish feed. Considering the potential of earthworm meal, as a protein source for fish feed, this study aimed to investigate the productive performance and the hematological profile of Nile tilapia juveniles fed with a commercial diet enriched with earthworm meal at levels (0.0; 5.0, 10 and 20%). The assay was conducted for 32 days and the productive performance and hematology profile of the animals were evaluated. Tilapia juveniles (n=144; 25.30±3.27g) were distributed in 12 aquariums (300 L) in a static system with partial water changes. The experimental design was completely randomized with four treatments and three replications. There were no significant differences (p>0.05) for performance responses and hematological profile related to variables on hematocrit and CHCM. However, for hemoglobin values the treatment with 20% earthworm meal was similar to the treatments with 5 and 10% earthworm meal, and significantly differed from the control treatment, suggesting its potential as a fish feed supplement. Thus, earthworm meal can be used at 5, 10, and 20% as a supplement for Nile tilapia juveniles without compromising their performance and hematological profile.
650 $aEarthworms
650 $aFish farms
650 $aProtein supplements
650 $aTilapia (common name)
650 $aAlimentação Suplementar
650 $aMinhoca
650 $aNutrição Animal
650 $aSuplemento Protéico
650 $aTilápia Nilótica
653 $aFish farm
653 $aFood supplement
653 $aHematological response
653 $aPerformance response
700 1 $aCARDOSO, I. L.
700 1 $aFERRI, G. H.
700 1 $aSILVA, L. C.
700 1 $aQUEIROZ, J. F. de
700 1 $aIVO, M. A.
700 1 $aISHIKAWA, M. M.
773 $tInternational Journal of Scientific Research Updates$gv. 4, n. 2, p. 86-91, 2022.
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