Biofloc technology (BFT) improves the productive performance and survival rate of Salminus brasiliensis

Biofloc technology (BFT) improves the productive performance and survival rate of Salminus brasiliensis

The aim of this study was to evaluate the productive performance and survival rate of dourado ( Salminus brasiliensis ) in biofloc technology (BFT) and in a traditional system with 20% water renewal per day. The design was completely randomized with two treatments and four replications. The experime...

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Bibliographic Details
Published in:Aquaculture international Vol. 32; no. 7; pp. 9951 - 9962
Main Authors: de Oliveira Brasileiro, Lucas, Povh, Jayme Aparecido, Spica, Louise Nex, Sanches, Karina Teixeira, Sousa, Rebeca Maria, de Moura Martins, Yago, de Salve, Lavinia Vera, Cruz, Luis Felipe Arruda, Roque, Lais Santos, Texeira, Susana Amaral, Filho, Ruy Alberto Caetano Côrrea
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-12-2024
Springer Nature B.V
Subjects:
Aeration
Aquariums
Biofloc technology
Biomass
Biomedical and Life Sciences
Feed conversion
Fish
Food conversion
Freshwater & Marine Ecology
Growth rate
Injuries
Life Sciences
Renewal
Salminus brasiliensis
Survival
Water quality
Weight
Zoology
Carnivorous fish
Intensive systems
Cannibalism
Aggression in fish
Neotropical fish
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Summary:The aim of this study was to evaluate the productive performance and survival rate of dourado ( Salminus brasiliensis ) in biofloc technology (BFT) and in a traditional system with 20% water renewal per day. The design was completely randomized with two treatments and four replications. The experimental units were composed of aquariums with a useful volume of 50 L and constant aeration, with 20 fish (4.12 g; 6.25 cm) allocated in each. In treatment with the traditional system, 10 L of water was siphoned from the aquariums every day during the 28 days of the experimental period. Water quality, productive performance, survival, and body score analysis for injuries were evaluated. Better water quality was observed in the BFT production system. No significant differences were observed at the end of the experiment for average weight, length (standard and total), daily weight gain, and specific growth rate. The results of feed conversion ratio, final biomass, and biomass gain were better ( P  < 0.05) for fish in BFT (1.44; 155.33 g; and 72.88 g/day) compared to the traditional system with partial water renewal (1.84; 128.1 g; and 45.5 g/day). Survival and body score analysis for injuries were better ( P  < 0.05) in fish maintained in BFT. In conclusion, the BFT production system provides a decrease in aggressiveness, better production performance, and survival rates and thus is more suitable for S. brasiliensis production in the initial phase compared to the traditional system with partial water renewal.
ISSN:0967-6120
1573-143X
DOI:10.1007/s10499-024-01644-8