Dietary protein reduction for Nile tilapia fingerlings reared in biofloc technology

Dietary protein reduction for Nile tilapia fingerlings reared in biofloc technology

The objective of this study was to evaluate the growth performance of Nile tilapia fed diets with 28, 32, and 36% crude protein (CP) in biofloc technology (BFT) and to verify its influence on water quality and hematological parameters. The experimental design was completely randomized with three tre...

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Veröffentlicht in:Journal of the World Aquaculture Society 2020-04, Vol.51 (2), p.452-462
Hauptverfasser: Hisano, Hamilton, Parisi, Jéssica, Cardoso, Israel L., Ferri, Giovanni H., Ferreira, Pollyanna M. F.
Format: Artikel
Sprache:eng
Schlagworte:
aquaculture system
Aquaria
Aquarium fishes
Aquariums
Biofloc technology
Design of experiments
Design parameters
Diet
diets
Environmental impact
Experimental design
Fingerlings
Fish
Freshwater fishes
Growth
Hematology
Oreochromis niloticus
Parameters
Performance evaluation
Ponds
Production costs
Proteins
Reduction
sustainability
Technology
Tilapia
Water quality
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Zusammenfassung:The objective of this study was to evaluate the growth performance of Nile tilapia fed diets with 28, 32, and 36% crude protein (CP) in biofloc technology (BFT) and to verify its influence on water quality and hematological parameters. The experimental design was completely randomized with three treatments (28, 32, and 36% CP) and six replicates. Nile tilapia (n = 270, 6.31 ± 0.40 g) were randomly distributed in 18 aquaria—200 L (15 fish/aquarium), over a period of 60 days. No differences (p > .05) were observed among the treatments for the growth performance and hematological parameters. The volumes of nitrite and sedimentable solids showed higher values with 36% CP, which differed (p 
ISSN:0893-8849
1749-7345
DOI:10.1111/jwas.12670