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Effect of different C/N ratios on volume and potential microbial composition of flocs in freshwater prawn Macrobrachium rosenbergii culture system

International Journal of Fisheries and Aquatic Studies · 2021 · Vol. 9(1) · pp. 310–317

Md. Amirul Islam✉(Bangladesh Fisheries Research Institute)Shikder Saiful Islam(Khulna University)Prosenjit Debnath(Khulna University)Joyanta Bir(Bangladesh Fisheries Research Institute)Khandaker Anisul Huq(Bangladesh Fisheries Research Institute)

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Abstract

The present study was conducted to evaluate the effects of C/N ratio on the volume of floc formation as well as on the load of several potential microbes of the fresh water prawn (Macrobrachium rosenbergii) culture tanks. The experiment was designed with three different C/N ratios viz. 10:1, 15:1, and 20:1 as T1, T2 and T3 were applied with a control (C) at laboratory condition. It was observed that C/N ratio 15:1 (12.22 ± 1.08 ml/L) and 20:1 (15.33 ± 1.37 ml/L) gave higher floc development compared to control C (5.22 ± 0.62 ml/L) and T1 (7.22 ± .46 ml/L) (P

Water Quality Monitoring Technologies Aquaculture Nutrition and GrowthMacrobrachium rosenbergiiPrawnVolume (thermodynamics)Animal scienceMacrobrachiumSurface-area-to-volume ratioSeawaterComposition (language)FisheryChemistry