The Bacterial Community Structure of Culture System Based on Biofloc Technology: A Review

doi:10.11924/j.issn.1000-6850.casb18110095

Abstract

Abstract: The authors introduced the study of bacterial community structure of biofloc, and set forth the composition and diversity of bacterial community structure at different stages of biofloc formation in the aquaculture system. Then, we analyzed the effect of environmental conditions, including different carbon sources and carbon-nitrogen ratios (C/N), on the compositions and diversities of microbial community in the biofloc as well as in the intestine of cultured animals. Besides, the roles of microbial community of biofloc were summarized, including the function of nitrogen removal and the inhibition of pathogenic bacteria growth and reproduction. Finally, the authors looked forward to the future developments and research directions of biofloc technology. The researchers could try to study the acclimation of the heterotrophic biofloc system into a nitrifying biofloc system gradually by reducing the amount of carbon source added progressively during the middle and late stages of biofloc culture system. In addition, the combination of the biofloc technology and the biofilm technology in aquaculture system could also be demonstrated in the future by the researchers.

CLC Number:

S959
S942.3

References

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