Growth, digestive activity, welfare, and partial cost-effectiveness of genetically improved farmed tilapia (Oreochromis niloticus) cultured in a recirculating aquaculture system and an indoor biofloc system

Luo, Guozhi; Gao, Qi; Wang, Chaohui; Liu, Wenchang; Sun, Dachuan; Li, Li; Tan, Hongxin

doi:10.1016/j.aquaculture.2013.11.023

Cited by 254 publications

(216 citation statements)

References 29 publications

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“…This result is in agreement with the observations made by Liu, Hu, Dai, and Avnimelech (2014) and Luo et al (2014). Those authors have also witnessed the incapacity of the bioflocs to remove great amounts of nitrite from the culture water.…”

Section: Resultssupporting

confidence: 92%

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<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

et al. 2017

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ABSTRACT. The present study aimed to assess the possible beneficial effects of the integration between bioflocs and periphyton to the Nile tilapia's water quality and growth performance. There were four treatments with five replicates each: (1) Control: green waters, (2) Periphyton: substrate-based system, (3) BFT: bioflocs technology for aquaculture, and (4) Biophyton: integration between bioflocs and periphyton. Fish (1.63 ± 0.07 g) were reared for 10 weeks in twenty 250 L outdoor tanks. Two polyethylene boards were vertically set out in the Periphyton and Biophyton tanks as underwater substrates. The C: N ratios of water in the BFT and Biophyton tanks were adjusted to 15:1 with dry molasses applications. The concentrations of total ammonia nitrogen were higher in the Control and Periphyton tanks than in the BFT and Biophyton ones. On the other hand, the concentrations of reactive phosphorus were higher in the BFT and Biophyton tanks than in the Control and Periphyton ones. The fish final body weight, specific growth rate and fish yield have not differed between the tanks. The integration between bioflocs and periphyton has not brought clear benefits to tilapia culture on water quality and growth performance.Keywords: aquaculture, Oreochromis niloticus, water quality.Integração entre bioflocos e perifíton em tanques de cultivo da tilápia do Nilo RESUMO. O presente trabalho teve por objetivo determinar os possíveis efeitos benéficos da integração entre bioflocos e perifíton na qualidade de água e no desempenho zootécnico da tilápia do Nilo. Trabalhou-se com quatro tratamentos com cinco repetições cada: (1) Controle: águas verdes, (2) Perifíton: sistema de cultivo baseado em substrato, (3) BFT: tecnologia bioflocos para aquicultura e (4) Biofíton: bioflocos + perifíton. Os peixes (1,63 ± 0,07 g) foram mantidos por dez semanas, em 20 tanques externos de 250 L. Duas pranchas de polietileno foram posicionadas verticalmente, nos tanques Perifíton e Biofíton, como substratos submersos. A relação C: N da água dos tanques BFT e Biofíton foi ajustada para 15:1 pela aplicação de melaço à água. As concentrações de nitrogênio amoniacal total foram maiores nos tanques Controle e Perifíton do que nos tanques BFT e Biofíton. Por outro lado, as concentrações de fósforo reativo foram maiores nos tanques BFT e Biofíton que nos tanques Controle e Perifíton. O peso corporal final, a taxa de crescimento específico e a produtividade de peixe não diferiram entre os tanques. A integração entre bioflocos e perifíton não apresentou claros benefícios para a criação da tilápia, em relação à qualidade da água e ao desempenho produtivo.Palavras-chave: aquicultura, Oreochromis niloticus, qualidade de água.

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Section: Resultssupporting

confidence: 92%

“…In the BFT system, despite its lower levels of ammonia (Luo, Avnimelech, Pan, & Tan, 2013), there is an accumulation of nitrite in the water (Luo et al, 2014). In the substrate-based system, the removal rates of ammonia are generally low when compared to those found in the BFT system (Schveitzer et al, 2013b).…”

Section: Introductionmentioning

confidence: 99%

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

et al. 2017

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“…The nitrite range in the tanks was between 0.52 and 2.17 mg L -1 . Liu, Hu, Dai, and Avnimelech (2014) and Luo et al (2014) have also observed a similar response for the nitrite results. Therefore, the bioflocs are capable to remove, beside ammonia, nitrite from the water, which is also a toxic compound for fish and shrimp (Krummenauer et al, 2012).…”

Section: Results and Discussion Water Qualitysupporting

confidence: 61%

<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia

Cavalcante

Lima

Rebouças

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m -3 ), on variables of water quality, growth performance and effluent quality after 10 weeks. The experiment was arranged in a 2 x 2 factorial randomized block design with four treatments and five repetitions each. The factors tested were the following: 'underwater structure' (absence and presence) and 'adjustment of the C: N ratio of water' (no and yes). The final fish body weight, specific growth rate and yield were higher (p < 0.05) in the C: N-adjusted tanks. The presence of submerged structures in the tanks had no significant influence on those same variables. It was concluded that the periphyton-based system is not indicated for intensive farming of Nile tilapia, in which there is a high allowance of artificial feed to fish.Keywords: aquaculture, Oreochromis, limnoculture, limnology.Integração dos sistemas perifíton e bioflocos no cultivo intensivo de juvenis de tilápia do Nilo RESUMO. O presente trabalho teve por objetivo determinar os efeitos da integração do sistema baseado em substrato (perifíton) com o sistema baseado no ajuste da relação C: N da água (bioflocos), no cultivo intensivo de juvenis de tilápia do Nilo (1,56 ± 0,07 g; 72 peixes m -3 ), sobre variáveis de qualidade de água, desempenho zootécnico e qualidade de efluentes, após 10 semanas. O delineamento experimental utilizado foi em blocos ao acaso, em arranjo fatorial 2 x 2, com quatro tratamentos e cinco repetições cada. Os fatores em teste foram os seguintes 'estruturas submersas' (ausência e presença) e 'ajuste da relação C: N da água' (não e sim). Os resultados de peso corporal final, taxa de crescimento específico e produtividade de peixe foram maiores (p < 0,05) nos tanques nos quais se fez o ajuste da relação C: N da água, quando comparado aos tanques sem esse ajuste. A presença das estruturas submersas nos tanques não afetou de modo significativo essas mesmas variáveis. Concluiu-se que o sistema de cultivo de peixe baseado em substrato (perifíton) não é indicado para cultivos intensivos de juvenis de tilápia do Nilo, nos quais há grande entrada de alimento artificial nos tanques de cultivo.

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“…In this study, the biofloc based system had shown a significant effect on the growth performance and feed utilization of C. chanos. The rise in growth performance and feed utilization of the fishes reared in biofloc were reported by several researchers (Haridas et al, 2017;Azim and Little, 2008;Luo et al, 2014;Zhang et al, 2016).…”

Section: Operational Cost Analysis Of Biofloc and Clear Water For Nurmentioning

confidence: 82%

“…The low FCR values obtained in the biofloc treatments may be due to the availability of nutritionally rich food and the probiotic effect of biofloc which also improve the digestion (Azim and Little, 2008;Luo et al, 2014;Verma et al, 2016;Zhang et al, 2016).…”

Section: Operational Cost Analysis Of Biofloc and Clear Water For Nurmentioning

confidence: 99%

Economic Viability of Biofloc Based System for the Nursery Rearing of Milkfish (Chanos chanos)

Sontakke¹,

Haridas²

2018

Int.J.Curr.Microbiol.App.Sci

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Growth, digestive activity, welfare, and partial cost-effectiveness of genetically improved farmed tilapia (Oreochromis niloticus) cultured in a recirculating aquaculture system and an indoor biofloc system

Cited by 254 publications

References 29 publications

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

<b>Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia

Economic Viability of Biofloc Based System for the Nursery Rearing of Milkfish (Chanos chanos)

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