Use of molasses as carbon source in limited discharge nursery and grow-out systems for Litopenaeus vannamei

Samocha, Tzachi M.; Patnaik, Susmita; Speed, Mike; Ali, Abdul-Mehdi S.; Burger, Josh M.; Almeida, Rodrigo Volcan; Ayub, Zarrien; Harisanto, Margasanto; Horowitz, Arthur J.; Brock, David L.

doi:10.1016/j.aquaeng.2006.10.004

Cited by 265 publications

(230 citation statements)

References 16 publications

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“…Hari et al (2004), em estudo de adição de carboidratos no cultivo semi-intensivo em viveiros escavados de Penaeus monodon, obtiveram melhores taxas de crescimento e conversão alimentar com adição de farinha de mandioca como fonte de carbono orgânico, com razão C:N de 20:1. Esta razão parece estar bem estabelecida para cultivo do L. vannamei cultivado em meio a flocos microbianos, sendo aplicada em diversos estudos com a mesma finalidade (Avnimelech 1999, Hari et al 2004, Samocha et al 2007). Segundo Otoshi et al (2007), uma da vantagens desse sistema é a possibilidade de se produzir 1 kg de camarão com apenas 160 litros de água, enquanto que para os sistemas convencionais são necessários 64.000 litros para essa mesma produção (Hopkins et al, 1995).…”

Section: Introductionunclassified

Fertilização Orgânica Com Carbono No Cultivo Intensivo Em Viveiros Com Sistema De Bioflocos Do Camarão Branco Litopenaeus Vannamei

FRÓES¹,

Fóes²,

KRUMMENAUER³

et al. 2012

Atlântica

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peso médio inicial de 0,112 ± 0,07g foram cultivados na densidade de 85 camarões m-2 em 6 viveiros escavados (500 m² cada) e revestidos com PEAD (geomembrana). No tratamento com fertilização de carbono não houve renovação da água de cultivo. No tratamento controle os camarões foram cultivados sem adição extra de carbono, e renovação de água foi de 10 % por semana. Não houve diferença significativa entre os parâmetros de qualidade de água (p>0,05). A sobrevivência e conversão alimentar não apresentaram diferenças significativas entre os tratamentos. Entretanto, os camarões cultivados no tratamento com fertilização de carbono apresentaram peso médio final significativamente maior (p<0,05) (10,72 g ± 2,12) em relação ao controle (8,45 g ± 2,03). PALAVRAS CHAVE: Biofloco, Litopenaeus vannamei, fertilização de carbono ABSTRACT Carbon addition in intensive culture of white shrimp Litopenaeus vannamei with bioflocThis study evaluated the effects of carbon addition in the water quality and performance of the white shrimp Litopenaeus vannamei reared in a minimal water exchange intensive system with suspended microbial flocs. Juveniles of L. vannamei with an initial mean weight of 0.112 ± 0.07 g were reared in 6 lined ponds (500 m2) at a density of 85 shrimp/m2. Two treatments with tree replicates each were applied -TM (Molasses treatment) and TC (Control Treatment). Ponds from the Molasses treatment were organically fertilized with molasses (as a carbon source) every week and no water exchange was performed. At the ponds from the control treatment shrimp were reared without molasses addition and water was exchange at a 10 % rate every week. Aeration was provided to all tanks with a 1hp paddle wheel aerators (equivalent to 20hp per hectare). The physical and chemical water quality factors were within the recommended range for this species culture and there were no significant differences between treatments throughout the experimental period. Similarly, survival and feed conversion rate did not show significant differences between treatments (p>0.05). However, shrimp reared in the Molasses treatment achieved significant higher (p<0.05) mean final weight (10.72 ± 2.12 g) than shrimp reared in the control treatment (8.45 ± 2.03 g).

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Section: Introductionunclassified

Fertilização Orgânica Com Carbono No Cultivo Intensivo Em Viveiros Com Sistema De Bioflocos Do Camarão Branco Litopenaeus Vannamei

FRÓES¹,

Fóes²,

KRUMMENAUER³

et al. 2012

Atlântica

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“…No entanto, a rápida expansão desta cadeia produtiva não foi devidamente acompanhada por sistemas de manejo eficientes em reduzir os impactos ambientais, gerados por sistemas autotróficos tradicionais (Samocha et al, 2007). Efluentes provenientes deste tipo de cultivo são responsáveis por degradações em ecossistemas e por disseminação de doenças em camarões.…”

Section: Removal Of Nitrogen and Phosphate Compounds From Wastewater unclassified

Remoção de compostos nitrogenados e fosfatados de efluentes por meio de reator anaeróbico com fluxo ascendente

Costa

Lavander

Oliveira

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a remoção de compostos nitrogenados e fosfatados e da carga orgânica poluidora oriunda de cultivo heterotrófico de camarão marinho, por meio de reator anaeróbico. Foi construído um reator com fluxo ascendente, em que os efluentes de entrada e saída foram avaliados continuamente durante 120 horas, com três repetições. Os parâmetros físicos e químicos avaliados foram: temperatura, pH, condutividade, ortofosfato, nitrito, nitrato, amônia, demanda química de oxigênio e sólidos totais. O reator permaneceu estável, com boas condições de retenção de sólidos. O reator anaeróbico removeu 96,7% do nitrogênio amoniacal e 91% de ortofosfatos dos efluentes de cultivo de camarão marinho, o que mostra que os efluentes tratados estão dentro dos limites estabelecidos pela legislação.Termos para indexação: Litopenaeus vannamei, águas residuais, controle de poluição, cultivo de camarão, qualidade de água. Removal of nitrogen and phosphate compounds from wastewater by an upward-flow anaerobic reactorAbstract -The objective of this work was to evaluate the removal of phosphate and nitrogen compounds, and of pollutant, organic load from heterotrophic farming of marine shrimp, using an anaerobic reactor. An upward-flow reactor was constructed, in which input and output wastes were continuously evaluated for 120 hours, with three replicates. The evaluated physical and chemical parameters were: temperature, pH, conductivity, orthophosphate, nitrite, nitrate, ammonia, chemical oxygen demand and total solids. The reactor remained steady, with good conditions for solid retention. The upward-flow anaerobic reactor removed 96.7% ammoniacal nitrogen and 91% orthophosphate from effluents of marine shrimp farming, which shows that effluents are within the limits set by law.

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“…This increase was based on the internal recirculation of nutrients through the formation of new microbial biomass, which was subsequently grazed by the fish (Avnimelech 2006). The advantages of the technology in aquaculture has been well documented which includes low feed and water input (economical), less risk of pathogen introduction and diseases, more biosecurity, increased growth and survival, and hence increased crop yield (Otoshi et al 2009;Crab et al 2009;Samocha et al 1998Samocha et al , 2007Krummenauer et al 2011;Perez-Fuentes et al 2013). It also lowered the feed conversion rate by utilizing the in situ natural feed and has small footprints, hence reducing environmental impacts (Krummenauer et al 2014).…”

Section: Bioflocs In Aquaculture: Future Prospectusmentioning

confidence: 99%

Biofloc technology: an emerging avenue in aquatic animal healthcare and nutrition

et al. 2017

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Biofloc is a conglomeric aggregation of microbial communities such as phytoplankton, bacteria, and living and dead particulate organic matter. Biofloc technology involves manipulation of C/N ratio to convert toxic nitrogenous wastes into the useful microbial protein and helps in improving water quality under a zero water exchange system. It may act as a complete source of nutrition for aquatic organisms, along with some bioactive compounds that will enhance growth, survival, and defense mechanisms, and acts as a novel approach for health management in aquaculture by stimulating innate immune system of animals. Nutritionally, the floc biomass provides a complete source of nutrition as well as various bioactive compounds that are useful for improving the overall welfare indicators of aquatic organisms. Beneficial microbial bacterial floc and its derivative compounds such as organic acids, polyhydroxy acetate and polyhydroxy butyrate, could resist the growth of other pathogens, thus serves as a natural probiotic and immunostimulant. The technology is useful in maintaining optimum water quality parameters under a zero water exchange system, thus prevents eutrophication and effluent discharge into the surrounding environment. Moreover, the technology will be useful to ensure biosecurity, as there is no water exchange except sludge removal. The technology is economically viable, environmentally sustainable, and socially acceptable.

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Use of molasses as carbon source in limited discharge nursery and grow-out systems for Litopenaeus vannamei

Cited by 265 publications

References 16 publications

Fertilização Orgânica Com Carbono No Cultivo Intensivo Em Viveiros Com Sistema De Bioflocos Do Camarão Branco Litopenaeus Vannamei

Fertilização Orgânica Com Carbono No Cultivo Intensivo Em Viveiros Com Sistema De Bioflocos Do Camarão Branco Litopenaeus Vannamei

Remoção de compostos nitrogenados e fosfatados de efluentes por meio de reator anaeróbico com fluxo ascendente

Biofloc technology: an emerging avenue in aquatic animal healthcare and nutrition

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