Identification of Effective Organic Carbon for Biofloc Shrimp Culture System

Sakkaravarthi, K.; Sankar, G.

doi:10.3923/jbs.2015.144.149

Cited by 16 publications

(14 citation statements)

References 26 publications

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“…Bacillus from a highly enclosed culture system of Litopenaeus vannamei was isolated [23] . [45] used molasses as source of carbon for developing biofloc for Penaeus indicus post larvae rearing in tank system that showed floc volume of 12 ml/L very close to the present study.…”

Section: Discussionsupporting

confidence: 84%

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

Islam¹,

Islam²,

Debnath³

et al. 2021

Int. J. Fish. Aquat. Stud.

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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<0.05). The loads of Enterococcus spp.was found to be highest in T2, followed by T1, C and T3 (P<0.05). Higher Lactobacilllus spp. load was found in T1 and T2 compared to T3 and C, which indicates that growth of Lactobacillus spp. require a fair range of carbon source. No Salmonella spp. was found in any treatment. The present findings indicate that C/N ratio 15:1 could be applied in sustainable freshwater prawn culture.

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Section: Discussionsupporting

confidence: 84%

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

Islam¹,

Islam²,

Debnath³

et al. 2021

Int. J. Fish. Aquat. Stud.

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“…FCR and FER values of the present study showed that fishes reared under jaggery based biofloc system showed lowest FCR and highest FER compared to control fishes which showed the highest FCR and lowest FER. Previous study on jaggery based biofloc system revealed that this technology can reduce the FCR more effectively (Sakkaravarthi and Sankar, 2015). Jaggery has the capability to dissolve quickly in water and helps to develop more microbial load; especially, heterotrophic bacteria upto 13×10 6 counts (Singh et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, in earlier studies, higher growth rate was observed in biofloc raised tilapia (Azim and little 2008;Crab et al, 2009), L. rohita (Mahanand et al, 2013;Ahamd et al, 2016), Carassius auratus (Wang et al, 2015) and Cyprinus carpio (Najdegerami et al, 2015), which clearly indicates that biofloc can substitute aquatic animal feed and can promote growth of diverse fish species. Sakkaravarthi and Sankar (2015)…”

Section: Discussionmentioning

confidence: 99%

Effect of different carbon sources on growth, non-specific immunity and digestive enzyme activity of amur carp (Cyprinus rubrofuscus Lacepede 1803) fingerlings in biofloc based rearing system using inland saline groundwater

Ezhilarasi¹,

Verma²,

Rani³

et al. 2019

Indian J. Fish.

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The study was conducted to evaluate the effect of different carbon sources in biofloc based system for rearing amur carp (Cyprinus rubrofuscus Lacepede 1803) fingerlings in inland saline groundwater. The study was undertaken in a complete randomised design (CRD) where each treatment was performed in triplicate. The experimental unit consisted of four different carbon sources viz., T1 (tapioca flour), T2 (wheat flour), T3 (rice bran), T4 (jaggery) and control (C) with water exchange for a duration of 45 days. Each tank (500 l) was stocked with 30 fingerlings with an average body weight of 11.17±0.34 g. At the end of the rearing period, biofloc based treatments showed significantly better growth performance compared to control. Among the treatments, jaggery based biofloc system showed the highest biomass (629.4±1.58 g), specific growth rate, SGR (1.32±0.03 % day-1), protein efficiency ratio, PER (0.29±0.05), and lowest feed conversion ratio, FCR (0.56±0.03). Digestive enzymes of the biofloc reared fishes showed enhanced activity compared to control group. Jaggery based biofloc (T4) showed significantly higher non-specific immune response in terms of respiratory burst activity (1.14±0.01), superoxide dismutase (44.59±0.19 U mg protein-1) and catalase (1.59 ± 0.01 U mg protein-1) activity compared to other biofloc treatments and the control. The present study concluded that jaggery is best as compared to others carbon sources tested (tapioca flour, wheat flour and rice bran) for better growth, non-specific immunity and digestive enzyme activity of amur carp fingerlings in biofloc based rearing system using inland saline groundwater.

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“…Combination of molasses and algicidal bacteria (CZBCI) controlled the abundance of cyanobacteria in the culture system. The abundance of total bacteria and culturable heterotrophic bacteria increased gradually in all groups Xu et al (Sakkaravar & Sankar 2015). Therefore, the nutritional composition of bioflocs is linked to the composition of the microbiota present in the flocs.…”

Section: Effects Of Carbon Source On Nutritional Quality Of Bioflocsmentioning

confidence: 95%

“…(2019) (Sakkaravar & Sankar 2015). Therefore, the nutritional composition of bioflocs is linked to the composition of the microbiota present in the flocs.…”

Section: Effects Of Carbon Source On Nutritional Quality Of Bioflocsmentioning

confidence: 99%

Supplemental carbon sources applied in biofloc technology aquaculture systems: types, effects and future research

Abakari

Luo

Kombat

et al. 2020

Reviews in Aquaculture

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Biofloc technology (BFT) systems have been driven towards increased sustainability in the last decade. BFT depends on maintenance of the optimal carbon-to-nitrogen (C/N) ratio through supplementation with organic carbon sources. The types of carbon sources and addition strategies are critical considerations in BFT systems. Thus for the purpose of this review, a thorough search of the literature was conducted to gather relevant information from reliable sources, ranging from reputable journals to books and useful reports in the field of BFT. Keywords used for the literature search include: 'biofloc technology systems', 'carbon sources', 'solid carbon sources', 'effects of carbons sources', 'carbon source addition strategies', 'nutritional quality of bioflocs', 'carbon sources and water quality', 'C/N ratio in BFT', and 'carbon sources and bacterial community'. Among the several peer-reviewed articles, books and technical reports consulted, 147 (dated from 1987 to 2020) were relevant for the preparation of this review. The current review thus examines the subject of supplemental carbon sources in BFT systems and discusses the various effects of their application with respect to the culture organism, microorganisms, water quality and the nutritional quality of flocs. The benefits and challenges associated with the types of carbon sources used in BFTs are also presented. Suggested organic carbon sources and their addition strategies are provided, and further research directions are proposed.

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Identification of Effective Organic Carbon for Biofloc Shrimp Culture System

Cited by 16 publications

References 26 publications

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

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

Effect of different carbon sources on growth, non-specific immunity and digestive enzyme activity of amur carp (Cyprinus rubrofuscus Lacepede 1803) fingerlings in biofloc based rearing system using inland saline groundwater

Supplemental carbon sources applied in biofloc technology aquaculture systems: types, effects and future research

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