The bacteria from large-sized bioflocs are more associated with the shrimp gut microbiota in culture system

Huang, Lei; Guo, Haipeng; Chen, Chen; Huang, Xiaolin; Chen, Wei; Bao, Fangjian; Liu, Wei; Wang, Sipeng; Zhang, Demin

doi:10.1016/j.aquaculture.2020.735159

Cited by 62 publications

(51 citation statements)

References 63 publications

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“…Similar trend was observed by Huang et al. (2020) in sucrose‐based BFT system. In the case of settling velocity, larger flocs were settled faster than smaller flocs due to the physics, particularly shearing rate.…”

Section: Discussionsupporting

confidence: 89%

“…Biofloc technology system is a shining star of aquaculture production system, which provides a lot of benefits such as improves water quality, immunity, growth and survival of culture species, and in other side, it minimizes the water and feed input and effluent production (Kumar et al., 2018). In general, biofloc system encompasses more bacterial communities compared with clear water aquaculture system; however, bacterial community of BFT varies according to the carbon source, C/N ratio, stocking density and floc characteristics (Deng et al., 2018, 2019; Huang et al., 2020; Li et al., 2018; Panigrahi et al., 2018; Qiao et al., 2020). In BFT system, using different carbon sources, various studies have been conducted, in recent times, which tried to establish a relationship between the bacterial communities of water and gut microbiome of Nile tilapia (Li et al., 2018; Liu et al., 2019; Perez‐Fuentes et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have been carried out on biofloc reared fish to find out the ability of biofloc water bacterial community to colonize in the gut of host animal. However, bacterial diversity in biofloc water differs based on carbon source, C/N ratio, stocking density and floc size (Deng et al., 2018, 2019; Huang et al., 2020; Li et al., 2018; Panigrahi et al., 2018). Apart from the bacterial characterization, microscopic organisms are also responsible for the water quality maintenance in the biofloc system.…”

Section: Introductionmentioning

confidence: 99%

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Study on floc characteristics and bacterial count from biofloc‐based genetically improved farmed tilapia culture system

Yuvarajan

2020

Aquaculture Research

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The present study endeavoured to investigate the efficacy of biofloc technology (BFT) and clear water system (CWS) on nursery rearing of genetically improved farmed tilapia (GIFT). The study used outdoor lined pond (0.01 ha), in duplicate, to explore the bacterial community in culture water and gut flora of GIFT and floc characteristics of both systems. Each pond was stocked with 5,000 numbers (0.2 ± 0.02 g/fish) of GIFT fry and reared for 30 days. Biofloc, with carbon: nitrogen ratio of 10:1, was developed and maintained using distillery spent wash (DSW) as organic carbon source and provided with intensive aeration. Total heterotrophic bacteria (THB), Vibrio and Bacillus count of culture water and gut samples were significantly (p < .05) differed between BFT and CWS. Floc volume, size, settling velocity, porosity and floc volume index were documented from BFT system. Plankton count was significantly differed (p < .05) between the BFT and CWS. BFT showed pleiotropic beneficial effect on rearing medium and species health through colonization of probiotic heterotrophic bacteria and elimination of pathogenic bacteria in the gut. Novelty of floc characteristics measured in the present study would help to form the base clue for the scientific understanding of biofloc system which paves to promote the BFT as sustainable aquaculture practice.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on floc characteristics and bacterial count from biofloc‐based genetically improved farmed tilapia culture system

Yuvarajan

2020

Aquaculture Research

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“…In all stages of shrimp development, the intestinal bacterial community is mainly composed of Proteobacteria, Bacteroidetes and Actinobacteria, and the gut microbiota is greatly affected by the surrounding environment. Shrimp infected with WSSV face a significant increase in Proteobacteria and Fusobacteria, including potentially pathogenic bacteria, as well as a decrease in Bacteroidetes and Tenericutes in the gut in the biofloc system (Holt et al, 2020;Huang, Guo, et al, 2020;Wang et al, 2019). The relative abundance of Gammaproteobacteria in infected shrimp consistently increased, while Alphaproteobacteria and Actinobacteria showed the opposite pattern (Yu et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Dysbiosis of the shrimp ( Penaeus monodon ) gut microbiome with AHPND outbreaks revealed by 16S rRNA metagenomics analysis

Hossain

Dai

Qiu

2021

Aquaculture Research

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Acute hepatopancreatic necrosis disease (AHPND) or early mortality syndrome (EMS) is a severe hepatopancreatic disease of shrimp, which is mainly caused by Vibrio parahaemolyticus (Vp;Han, Tang, Pantoja, et al., 2015). AHPND was first diagnosed in China in 2009.Since then, this emerging disease has spread globally and caused substantial economic losses throughout its history. It affects both Penaeus monodon and Litopenaeus vannamei (Lai et al., 2015). Vibrio parahaemolyticus is a conditional pathogen of gram-negative, halophilic

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“…In the healthy shrimp gut, the microbiotas were reported to be more similar to the bacterial communities of large-sized bioflocs. This indicates that the shrimp gut microbiota may be partially derived from large bioflocs particles, and bacteria driven by large particles may play an important role in promoting shrimp growth (Huang et al, 2020). Therefore, in biofloc-fed rockworms, the Flavobacteriaceae and Rhodobacteraceae families likely contribute to rockworm growth and simultaneously compete with the Mycoplasmataceae family, which has a negative impact on rockworm growth.…”

Section: Bacterial Community At the Family And Genus Levelsmentioning

confidence: 99%

Identification of the bacterial composition in the rockworm gut and biofloc-fed adult gut flora beneficial for integrated multitrophic aquaculture

Jung¹,

Kim²,

Kim³

2021

Fish Aquat Sci

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The rockworm gut flora was identified at each growth stage to elucidate the composition of the bacterial community. The source material was Marphysa sanguinea fed regular feed and fed biofloc at the adult stage in parallel. The systematic bacterial community composition was determined based on the next-generation sequencing method, and alpha diversity and beta diversity were conducted to access the species diversity within and between the bacterial communities, respectively. The composition of the gut flora changed considerably as the rockworms developed. The shift in the gut flora was confirmed at the phylum, family, and genera level of the bacterial communities. The Vibrio species associated with high rockworm mortality occupied 7.7% of the gut flora at the larval stage; however, they disappeared in the healthy adult gut. Moreover, different gut flora was observed between adults fed regular feed and those fed biofloc. Specifically in the biofloc-fed adult gut, several immune relevant and water-purifying bacteria were detected. The biofloc-fed adult gut flora could decompose and mineralize organic sediment, and thus be effectively utilized for integrated multitrophic aquaculture. The Venn diagram revealed that only two bacterial species were shared throughout all growth stages, and the biofloc-fed adults exhibited the highest diversity within the bacterial community.

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The bacteria from large-sized bioflocs are more associated with the shrimp gut microbiota in culture system

Cited by 62 publications

References 63 publications

Study on floc characteristics and bacterial count from biofloc‐based genetically improved farmed tilapia culture system

Study on floc characteristics and bacterial count from biofloc‐based genetically improved farmed tilapia culture system

Dysbiosis of the shrimp ( Penaeus monodon ) gut microbiome with AHPND outbreaks revealed by 16S rRNA metagenomics analysis

Identification of the bacterial composition in the rockworm gut and biofloc-fed adult gut flora beneficial for integrated multitrophic aquaculture

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