IMR Press / FBL / Volume 27 / Issue 8 / DOI: 10.31083/j.fbl2708226
Open Access Original Research
Transcriptome Analysis of Hepatopancreas Provides Insights into Differential Metabolic Mechanisms of Eriocheir sinensis Feeding on Trash Fish and Formulated Feed
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1 Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 214081 Wuxi, Jiangsu, China
2 Wuxi Fisheries College, Nanjing Agricultural University, 214081 Wuxi, Jiangsu, China
3 Freshwater Fisheries Research Institute of Jiangsu Province, 210017 Nanjing, Jiangsu, China
*Correspondence: tangyk@ffrc.cn (Yongkai Tang); xugc@ffrc.cn (Gangchun Xu)
These authors contributed equally.
Academic Editor: Graham Pawelec
Front. Biosci. (Landmark Ed) 2022, 27(8), 226; https://doi.org/10.31083/j.fbl2708226
Submitted: 17 May 2022 | Revised: 13 June 2022 | Accepted: 30 June 2022 | Published: 21 July 2022
Copyright: © 2022 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license.
Abstract

Background: The Chinese mitten crab, Eriocheir sinensis (E. sinensis), is a popular crab species in both domestic and foreign markets. Trash fish are essential for E. sinensis breeding, but have caused serious water pollution. The municipal party committee for the main production areas of E. sinensis implemented a ban on feeding on trash fish since 2020. Methods: In this study, we performed a culture experiment of E. sinensis feeding on trash fish and formulated feed, with comparative transcriptome analysis on hepatopancreas of E. sinensis. Results: The results indicate that formulated feed causes no significant difference in growth, survival rate or content of amino acids in the muscles of adult E. sinensis. Formulated feed caused a slight downregulation of pathways involved in amino acid metabolism, development, energy metabolism and homeostasis maintenance. Conclusions: On the whole, formulated feed can serve as an undifferentiated substitution for trash fish. This study provides a theoretical foundation for optimizing research on E. sinensis feed.

Keywords
Eriocheir sinensis
trash fish
formulated feed
hepatopancreas
comparative transcriptome
Figures
Fig. 1.
Funding
SBK2020044520/Natural Science Foundation for Young Scholars in Jiangsu Province of China
PZCZ201749/Key Project for Jiangsu Agricultural New Variety Innovation
2020TD36/Central Public-interest Scientific Institution Basal Research Fund, CAFS
JFRS-01-01/Jiangsu Modern Agricultural Industry Technology System
[JBGS(2021)031]/Jiangsu Revitalization of Seed Industry
[JBGS(2021)125]/Jiangsu Revitalization of Seed Industry
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