Skip to main content

Advertisement

Log in

Long- and short-term dietary β-glucan improves intestinal health and disease resistance in pearl gentian grouper (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀)

  • Research
  • Published:
Fish Physiology and Biochemistry Aims and scope Submit manuscript

Abstract

β-Glucans are immunostimulants and are widely used in aquaculture industry. The present study was conducted to evaluate the effects of different periods of β-glucan management on growth performance, intestinal health, and disease resistance in pearl gentian grouper (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀). A commercial feed was used as control diet (CD), and the β-glucan diet (βD) was based on CD and further supplemented with 0.1% β-glucan. Grouper in control and long-term β-glucan diet (LGD) groups were fed with CD and βD for 8 weeks, respectively. Groupers in short-term β-glucan diet (SGD) group were fed with CD for the first 4 weeks and βD for the last 4 weeks. We found that LGD and SGD had no effect on growth performance but reduced the mortalities of grouper after challenging with Vibrio harveyi. In addition, both LGD and SGD increased intestinal morphology, enhanced antioxidant capacity, enhanced immunity, inhibited apoptosis, altered the transcriptional profile, and activated mitogen-activated protein kinase (MAPK) and nuclear factor kappa-B (NF-κB) signaling pathway in the intestine of grouper. Furthermore, the effect of LGD on most of the above parameters was comparable to that of SGD. In conclusion, LGD and SGD did not affect growth rate parameters but enhanced the intestinal health and disease resistance of pearl gentian grouper.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Data availability

The original transcriptomics reads were deposited in National Center for Biotechnology Information (NCBI) database with BioProject ID PRJNA913212.

References

Download references

Acknowledgements

We sincerely thank Jia Xu (College of Guangdong Ocean University) for providing technical help during the experiments. We would like to acknowledge Suzhou Bionovogene for providing technical help.

CRediT authorship contribution statement

Conceptualization: Fan Wang, Zhiwen Wang, Junming Cao, and Yishan Lu; methodology: Fan Wang and Junming Cao; formal analysis and investigation: Fan Wang and Zhiwen Wang; writing—original draft preparation: Fan Wang; writing—review and editing: Fan Wang, Zhiwen Wang, Junming Cao, and Yishan Lu; funding acquisition: Yishan Lu and Zhiwen Wang; resources: Junming Cao and Yishan Lu; supervision: Junming Cao, Zhiwen Wang, and Yishan Lu. All authors read and approved the final manuscript.

Funding

This work was supported by the Project supported by Shenzhen Science and Technology Program (JCYJ20210324130014035) and the Sustainable Development Project of Shenzhen Science and Technology Program (KCXFZ20211020165547010).

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Junming Cao or Yishan Lu.

Ethics declarations

Ethics approval

The experimental protocol was approved by the Animal Ethical and Welfare Committee of Guangdong Ocean University (Guangdong, China), processing ID GDOU-AEWC-20180063.

Competing interests

The authors declare no competing interests.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary information

ESM 1

(DOCX 134 kb)

ESM 2

(DOCX 3847 kb)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wang, F., Wang, Z., Cao, J. et al. Long- and short-term dietary β-glucan improves intestinal health and disease resistance in pearl gentian grouper (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀). Fish Physiol Biochem (2024). https://doi.org/10.1007/s10695-024-01310-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10695-024-01310-z

Keywords

Navigation