Effect of different biofloc levels on microbial activity, water quality and performance of Litopenaeus vannamei in a tank system operated with no water exchange

Schveitzer, Rodrigo; Arantes, Rafael; Costódio, Patrícia F. S.; Santo, Carlos Manoel do Espírito; Arana, Luis Alejandro Vinatea; Seiffert, Walter Quadros; Andreatta, Edemar Roberto

doi:10.1016/j.aquaeng.2013.04.006

Cited by 217 publications

(203 citation statements)

References 29 publications

Supporting

Mentioning

174

Contrasting

Unclassified

Order By: Relevance

“…The weekly gain was similar to that observed by Jatobá et al (2014) for shrimp fed experimental diets containing fishmeal (1.79 g/week). For shrimp fed a diet with 100% replacement of fishmeal, the lowest weekly gain of 1.57 g was still higher than the growth reported in other studies with fishmeal-free diets (Ray et al, 2010;Scopel et al, 2011;Sookying and Davis, 2011;Bauer et al, 2012;Sá et al, 2013) or experimental and/or commercial diets with fishmeal (Ray et al, 2010;Scopel et al, 2011;Bauer et al, 2012;Sá et al, 2013;Schveitzer et al, 2013a;2013b). These results demonstrated that the diet without fishmeal, even though deficient in essential amino acids, provided a satisfactory growth.…”

Section: Discussioncontrasting

confidence: 48%

See 1 more Smart Citation

Replacement of fishmeal for soy protein concentrate in diets for juvenile Litopenaeus vannamei in biofloc-based rearing system

et al. 2017

Self Cite

View full text Add to dashboard Cite

-This study aimed to assess the final body weight, weekly weight gain, yield, apparent feed efficiency, protein efficiency ratio, and feed intake of the Pacific white shrimp (Litopenaeus vannamei) fed four diets containing different levels of soy protein concentrate (SPC) as a replacement for fishmeal, reared in a super-intensive biofloc system. Diets consisted of replacing 209 g kg −1 fishmeal at 0, 33, 66, and 100% SPC. Shrimp were raised in a biofloc system using twelve experimental units stocked with 250 shrimp m −3 under constant aeration (O2>5mg L −1 ) and temperature (29±0.5 °C). No significant differences among treatments were observed based on water quality parameters. Shrimp fed diets with 0 and 33% substitution exhibited the highest weekly growth (1.88 and 1.79 g per week) and final weights (15.2 and 14.7 g) compared with shrimp fed the 66 and 100% replacement. A lower feed intake was observed for shrimp fed the 33% SPC diet (3.18 kg per experimental unit) compared with 0% replacement (3.62 kg). Shrimp fed the 33% replacement achieved a similar performance and lower feed intake than animals fed diet without replacement.

show abstract

Section: Discussioncontrasting

confidence: 48%

“…The amount of solids was maintained approximately between 400 and 600 mg L −1 (Schveitzer et al, 2013b). When this value was exceeded, the excess was removed with the aid of sedimentation tanks with a capacity of 60 L (adapted from Ray et al, 2010).…”

Section: Methodsmentioning

confidence: 99%

Replacement of fishmeal for soy protein concentrate in diets for juvenile Litopenaeus vannamei in biofloc-based rearing system

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition, suspended particles or solids (bioflocs) also will be increasing over time. With this information in mind, carbon addition could be reduced (or even stopped), preventing the excess of solids (bioflocs) in the cultured system that will lead an excessive DO consumption [65] and shrimp/fish gill occlusions [66].…”

Section: Carbon:nitrogen (C:n) Ratio and Its Applicationmentioning

confidence: 99%

Biofloc Technology (BFT): A Tool for Water Quality Management in Aquaculture

Emerenciano¹,

Córdova²,

et al. 2017

View full text Add to dashboard Cite

Biofloc technology (BFT) is considered the new "blue revolution" in aquaculture. Such technique is based on in situ microorganism production which plays three major roles: (i) maintenance of water quality, by the uptake of nitrogen compounds generating in situ microbial protein; (ii) nutrition, increasing culture feasibility by reducing feed conversion ratio (FCR) and a decrease of feed costs; and (iii) competition with pathogens. The aggregates (bioflocs) are a rich protein-lipid natural source of food available in situ 24 hours per day due to a complex interaction between organic matter, physical substrate, and large range of microorganisms. This natural productivity plays an important role recycling nutrients and maintaining the water quality. The present chapter will discuss some insights of the role of microorganisms in BFT, main water quality parameters, the importance of the correct carbon-to-nitrogen ratio in the culture media, its calculations, and different types, as well as metagenomics of microorganisms and future perspectives.

show abstract

“…O acúmulo desse nutriente é uma característica dos sistemas de cultivo intensivo sem troca de água, conforme estudos realizados por Burford et al (2003), Hopkins et al (1993) e Handy et al (2004. Entretanto, o acúmulo do ortofosfato no cultivo intensivo do camarão L. vannamei, em sistemas dominados por bioflocos e sem troca de água, pode ser minimizado pelo uso de tanques de sedimentação (RAY et al, 2010, SCHVEITZER et al, 2013 ou fracionadores de espuma (CORREIA et al, 2014 Valores apresentados como médias ± desvio padrão.…”

Section: Resultsunclassified

Cultivo Do Camarão Marinho Com Bioflocos Sob Diferentes Níveis De Proteína Com E Sem Probiótico

et al. 2015

View full text Add to dashboard Cite

RESUMO -O presente trabalho avaliou o desempenho do camarão marinho Litopenaeus vannamei alimentado com dietas de diferentes níveis protéicos em sistema de bioflocos com e sem a adição de probiótico. Foi adotado um delineamento experimental inteiramente casualizado com arranjo fatorial 4×2, com quatro níveis de proteína na dieta (20, 25, 30 e 35% PB), como primeiro fator (P20, P25, P30 e P35), e a adição de probiótico na água de cultivo, como segundo fator (P20 Pro , P25 Pro , P30 Pro e P35 Pro ). Foram utilizados 24 tanques em fibra de vidro (800 L volume útil) estocados com 300 camarões m -3 (peso inicial 1,55±0,01 g). As variáveis de qualidade da água foram mensuradas periodicamente e não apresentaram diferença estatística, exceto o teor de nitrito, influenciado significativamente (P<0,05) pelos níveis de proteína. Após 50 dias de cultivo o peso médio final dos camarões foi de 7,2±0,4 g (P≥0,05) entre os tratamentos. A interação entre os níveis protéicos e a adição de probiótico influenciaram significativamente (P<0,05) na sobrevivência (70,5-90,0%) e na biomassa final (1,3-2,0 Kg m -3 ). Dessa forma, em cultivo intensivo de L. vannamei, com utilização de bioflocos como fonte de alimento suplementar, é possível reduzir os níveis de proteína da ração de 35 para 25% sem comprometer o desempenho zootécnico dos camarões e a qualidade da água. Palavras-chave:Litopenaeus vannamei. Flocos microbianos. Melaço. Proteína. Sem renovação de água. MARINE SHRIMP CULTURE WITH BIOFLOCS UNDER DIFFERENT PROTEIN LEVELS WITH AND WITHOUT PROBIOTICABSTRACT -This study aimed to evaluate the culture of Litopenaeus vannamei marine shrimp fed with different protein levels diets in heterotrophic systems with and without probiotic addition. It was adopted a completely randomized design with 4x2 factorial arrangement, using four dietary protein levels (20, 25, 30 e 35% CP), as the first factor (P20, P25, P30, and P35), and probiotic addition in the water, as the second factor (P20 Pro , P25 Pro P30 Pro e P35 Pro ). For this were used 24 fiberglass tanks (800 L working volume) stocked with 300 shrimp m -3 (initial weight 1.55±0.01 g). Water quality parameters were analyzed periodically and showed no significant differences, except nitrite that was influenced by the protein levels (P<0.05). After 50 culture days, shrimp final weight averaged 7.2±0.4 g (P≥0.05). The interaction of protein levels vs. probiotic addition influenced significantly (P<0.05) the survival (70.6 to 90.0%) and final biomass (1.3-2.0 Kg m -3 ). In Litopenaeus vannamei intensive culture with the utilization of biofloc as the supplemental food, it is possible to reduce the protein levels of feed from 35 to 25%, without compromising the shrimp growth performance and water quality of the culture.

show abstract

Effect of different biofloc levels on microbial activity, water quality and performance of Litopenaeus vannamei in a tank system operated with no water exchange

Cited by 217 publications

References 29 publications

Replacement of fishmeal for soy protein concentrate in diets for juvenile Litopenaeus vannamei in biofloc-based rearing system

Replacement of fishmeal for soy protein concentrate in diets for juvenile Litopenaeus vannamei in biofloc-based rearing system

Biofloc Technology (BFT): A Tool for Water Quality Management in Aquaculture

Cultivo Do Camarão Marinho Com Bioflocos Sob Diferentes Níveis De Proteína Com E Sem Probiótico

Contact Info

Product

Resources

About