Organic Aquaculture
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Combining a probiotic with organic salts presents synergistic in vitro inhibition against aquaculture bacterial pathogens
ABSTRACT This study aimed to evaluate 1) the in vitro effect of organic salts on the growth of the probiotic Lactobacillus plantarum and then 2) the combined use of a probiotic with organic salts on the in vitro inhibition of V. alginolyticus, A. hydrophila, E. coli, P. aeruginosa, and S. agalactiae. In vitro tests were performed with eight different organic
Braz. arch. biol. technol.. Publicado em: 08/10/2018
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2. VALIDAÇÃO INTRALABORATORIAL DA DETERMINAÇÃO DE METILTESTOSTERONA EM ÁGUAS NATURAIS POR VOLTAMETRIA USANDO ELETRODO DE GOTA PENDENTE DE MERCÚRIO
17α-methyltestosterone (17α-MT) is a hormone used in medicine and aquaculture which can be found in natural waters. It is considered an emerging organic pollutant and its accurate and precise analysis is required. Therefore, this study presents the in-house validation of a new voltammetric methodology for 17α-MT analysis in natural waters. A hanging mercu
Quím. Nova. Publicado em: 2015-03
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3. Digestibilidade aparente de ingredientes com certificaÃÃo de origem orgÃnica e sua inclusÃo na alimentaÃÃo de juvenis de tilÃpia do Nilo / Apparent digestibility of ingredients with organic origin certification and their inclusion in feeding of juveniles of Nile tilÃpia
Objetivou-se com este estudo determinar os coeficientes de digestibilidade aparente da proteÃna e energia do farelo de soja, farelo de trigo, milho e trigo integral orgÃnicos para a tilÃpia do Nilo e avaliar o desempenho produtivo dos peixes alimentados com raÃÃes suplementadas com fontes energÃticas vegetais orgÃnicas. No ensaio de digestibilidade ut
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
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4. Comunidades planctônicas e o cultivo de camarões marinhos: variabilidade e impactos / Planktonic communities and the marine shrimp culture: variability and impacts
O desenvolvimento acelerado da atividade de aquacultura ao longo dos últimos anos levou ao desenvolvimento de novas tecnologias em busca de sistemas mais produtivos e ao mesmo tempo ecologicamente corretos. O objetivo desta tese foi o de avaliar o impacto dos cultivos de camarões na comunidade planctônica, na região do estuário da Lagoa dos Patos. A din
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2011
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5. Water quality in cultivation of shrimp in the Great Aracaju - Sergipe, Brazil. / Qualidade da água na carcinicultura na Grande Aracaju - Sergipe, Brasil.
Known to be essential for human survival, water is one of the most important natural resources of the planet; its quality is of fundamental importance for the sustainability of any agroecosystem. There is a worldwide trend in its preservation, to ensure its availability for various purposes. The aquaculture activity in the cultivation of shrimp has as one of
Publicado em: 2009
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6. Utilização de ostra e macroalga como biofiltro para efluentes de cultivo de camarão marinho
The efficiency of an integrated treatment system to improve the water quality from shrimp pond was assessed laboratory-scale by using sedimentation, oyster filtration and macroalgal absorption (trial 1), and the evaluation of oysters and macroalgae densities in effluent treatment of autotrophic and heterotrophic shrimp culture systems (trial 2). Native speci
Publicado em: 2008
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7. Mercury in soils and sediments from gold mining liabilities in Southern Amazonia
The 1980-1990 Amazonian gold rush left an enormous liability that increasingly has been substituted by developing fish aquaculture. This work aimed at the identification of the mercury levels in the environment, associated with fish farms located in the North of Mato Grosso State, Southern Amazon. Sediment and soil samples were analyzed for total organic car
Química Nova. Publicado em: 2007-08
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8. Caracterização e comportamento de uma série de lagoas de polimento tratando esgotos sanitários / Characterization and performance of a polishing pond series treating domestic wastewater
This work, conducted in Viçosa MG, presents the results of five years monitoring of a domestic wastewater treatment system including an anaerobic reactor (UASB) plus a submerged aerated biofilter (real scale), followed by a three to four shallow polishing / maturation ponds series (pilot scale, h ≤0,90 m), with operational flexibility in terms of dept
Publicado em: 2007
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9. Tratamento de efluente de piscicultura orgÃnica utilizando macrÃfitas aquÃticas Eichhornia crassipes (mart. Solms) e Egeria densa (Planchon.) / Treatment of effluent of organic pisciculture using macrophytes aquatics eichhornia crassipes (mart. solms) e egeria densa (planchon.)
The objective of the recent research was to evaluate the efficiency of a system of aquatic treatment being used macrophytes Eichhornia crassipes (water hyacinth) and Egeria dense (egeria) in three times of hydraulic detention, the removal of pollutants of the effluent one of organic culture of tilÃpias of the Nile (Oreochromis niloticus), and to get given o
Publicado em: 2007
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10. Biodiversidade e abundância da ictiofauna associada ao cultivo orgânico de Litopenaeus vannamei (Boone, 1931)
The expansion of shrimp farming has caused a series of environmental impacts, often as a result of lack of planning and adequate management. Organic aquaculture has emerged as an alternative to conventional shrimp farming, and differently, aims at the economical, ecological and farming potential of other organisms, such as fishes, oysters and seaweeds. The p
Publicado em: 2006
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11. Utilização de fertilizantes orgânicos para indução de alimento natural no cultivo do camarão nativo Farfantepenaeus subtilis (Pérez-Farfante, 1967).
The marine shrimp Farfantepenaeus subtilis has a high potential for the aquaculture. However there are some feeding and nutrition problems in captivity, resulting in low growth and high feed conversion ratio. This work aimed to evaluate the natural food induction in F. subtilis culture, through different fertilization regimes. Were adopted four treatments an
Publicado em: 2006
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12. Toxicidade do efluente de uma fazenda de cultivo de camarÃo marinho Litopanaeus vannamei e do metabissulfito de sÃdio em juvenis de Mysidopsis juniae / Toxicity of an effluent produced by a Litopenaeus vannamei shrimp farm and sodium metabisulphite on Mysidopsis juniae juveniles
Shrimp represents the most important aquaculture product in many countries. However there are considerable ecological costs associated with this activity and the introduction of effluents into receiving water without any treatment have attracted considerable attention. These effluents contained organic matter, nitrate, nitrite, phosphates and other substance
Publicado em: 2006