Abstract
Objective: To evaluate the effect of biofloc on the growth and survival of ornamental cichlid, Blue morph. Methods/Statistical analysis: Thousand number of Blue morph were stocked in circular cement tanks of 14000 l capacity in control and biofloc rearing tanks. Various water quality parameters, qualitative and quantitative parameters of biofloc and growth parameters were estimated periodically. The results were statistically analysed using ANOVA. Results/Findings: All the water quality parameters were high in Control tank compared to biofloc. Floc volume was higher in biofloc tank (4.4 mg/l). The number of microorganisms present in biofloc was much higher than Control. The survival rate of Blue morph young ones in biofloc treatment was 93% and it was 90.2%in control.All growth parameters expect length, weight gain and mean length were significantly significant (P<0.01) among the days of culture as well as between control and biofloc treatment tanks. Conclusion: Biofloc increased the growth and survival of Blue morph significantly.
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