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Metabolites
Special Issues
Metabolism and Nutrition in Fish
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Metabolism and Nutrition in Fish

A special issue of Metabolites (ISSN 2218-1989). This special issue belongs to the section "Animal Metabolism".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 2398

Special Issue Editors

Dr. Lei Wang

E-Mail Website
Guest Editor
School of Ecology and Environment, Anhui Normal University, Wuhu 241002, China
Interests: lipid metabolism; intestinal health; fish; nutrition and environment
Dr. Peng Tan

E-Mail Website
Guest Editor
Marine and Fisheries Research Institute, Zhejiang Ocean University, Zhoushan 316022, China
Interests: fish; lipid metabolism; immunity; feed additives
Prof. Dr. Rantao Zuo

E-Mail Website
Guest Editor
Key Laboratory of Mariculture and Stock Enhancement in North China’s Sea (Ministry of Agriculture and Rural Affairs), Dalian Ocean University, Dalian 116023, China
Interests: nutrition metabolism and feed formulation of aquatic animals, including finfish, sea urchin, sea cucumber, and crustaceans

Special Issue Information

Dear Colleagues,

The rapid expansion of the aquaculture industry necessitates a deep understanding of fish’s nutrition and metabolism. These aspects not only impact fish health and yield but also have economic implications. We are pleased to invite you to submit your research for this Special Issue of “Metabolites”, dedicated to studies on fish’s nutrition and metabolism. This Special Issue aims to showcase studies on novel ingredients (e.g., protein, lipid, and carbohydrates) and functional feed additives (e.g., polysaccharides, plant extracts, bile acids, and bacterial products) in fish. By providing a broad and precise perspective on nutrition and metabolism, this Special Issue will contribute to the advancement of sustainable aquaculture practices.

The submission of original research articles and reviews for this Special Issue is encouraged. Research areas may include (but are not limited to) the following: fishmeal and fish oil replacements, novel feed additives, fish’s nutritional requirements, and fish environments.

We look forward to receiving your contributions.

Dr. Lei Wang
Dr. Peng Tan
Prof. Dr. Rantao Zuo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metabolites is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fish
  • metabolism
  • nutrition
  • feed additives
  • lipid
  • protein
  • requirements

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

12 pages, 4161 KiB  
Article
Hyperglycosylation as an Indicator of Aging in the Bone Metabolome of Oryzias latipes
by Remi O. Labeille, Justin Elliott, Hussain Abdulla and Frauke Seemann
Metabolites 2024, 14(10), 525; https://doi.org/10.3390/metabo14100525 - 27 Sep 2024
Viewed by 847
Abstract
Chronological aging of bone tissues is a multi-faceted process that involves a complex interplay of cellular, biochemical, and molecular mechanisms. Metabolites play a crucial role for bone homeostasis, and a changed metabolome is indicative for bone aging, although bone metabolomics are currently understudied. [...] Read more.
Chronological aging of bone tissues is a multi-faceted process that involves a complex interplay of cellular, biochemical, and molecular mechanisms. Metabolites play a crucial role for bone homeostasis, and a changed metabolome is indicative for bone aging, although bone metabolomics are currently understudied. The vertebral bone metabolome of the model fish Japanese medaka (Oryzias latipes) was employed to identify sex-specific markers of bone aging. 265 and 213 metabolites were differently expressed in 8-month-old vs. 3-month-old female and male fish, respectively. The untargeted metabolomics pathway enrichment analysis indicated a sex-independent increased hyperglycosylation in 8-month-old individuals. The upregulated glycosylation pathways included glycosphingolipids, glycosylphosphatidylinositol anchors, O-glycans, and N-glycans. UDP-sugars and sialic acid were found to be major drivers in regulating glycosylation pathways and metabolic flux. The data indicate a disruption of protein processing at the endoplasmic reticulum and changes in O-glycan biosynthesis. Dysregulation of glycosylation, particularly through the hexosamine biosynthetic pathway, may contribute to bone aging and age-related bone loss. The results warrant further investigation into the functional involvement of increased glycosylation in bone aging. The potential of glycan-based biomarkers as early warning systems for bone aging should be explored and would aid in an advanced understanding of the progression of bone diseases such as osteoporosis. Full article
(This article belongs to the Special Issue Metabolism and Nutrition in Fish)
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15 pages, 2334 KiB  
Article
A Comparative Study on the Muscle and Gut Microbiota of Opsariichthys bidens from Rice Field and Pond Culture Breeding Modes
by Fan Zhou, Weichao Bu, Hongjie Fan, Shuirong Guo, Ming Qi, Gaohua Yao, Yijiang Bei, Yuanfei Huang, Shicheng Zhu, Xueyan Ding and Xingwei Xiang
Metabolites 2024, 14(8), 443; https://doi.org/10.3390/metabo14080443 - 9 Aug 2024
Viewed by 1106
Abstract
To investigate difference in the quality of the different parts (back, tail muscles, and fish skin) of Opsariichthys bidens from pond and rice field cultures, a comparative study was conducted in terms of nutritional composition, volatile flavor profiles and gut microbiota. In detail, [...] Read more.
To investigate difference in the quality of the different parts (back, tail muscles, and fish skin) of Opsariichthys bidens from pond and rice field cultures, a comparative study was conducted in terms of nutritional composition, volatile flavor profiles and gut microbiota. In detail, the texture, free amino acids, fatty acids were further assessed. The results suggested that the moisture content, crude protein and crude fat content in the skin of O. bidens are higher than those in the back and tail muscles, regardless of breeding modes. The fish cultured in the rice field had a higher protein content than those from the pond culture, while the fat content of the rice field-cultured fish was significantly low compared to the fish from the pond culture, especially in the back and tail parts. A total of 43 volatile components were detected by Gas Chromatography–Mass Spectrometry (GC-MS), with a maximum of 18 types of aldehydes and the highest concentration being nonanal. Compared to pond cultures, the fish from the rice field cultures showed more abundant flavor composition and odor-active compounds. The total content of DHA (Docosahexaenoic Acid) and EPA (Eicosapentaenoic Acid) in the rice field-cultured fish was higher than that of the pond group, while no significant disparity in amino acid composition was observed (p > 0.05). Comparative and clustering analyses of gut microbiota revealed notable discrepancies in the gut microbiota of O. bidens from two aquaculture systems. However, an inherent correlation between the gut microbiome and meat quality would be further emphasized in further studies. This study can offer a theoretical reference for the development of high-quality aquatic products by selecting the appropriate aquaculture models. Full article
(This article belongs to the Special Issue Metabolism and Nutrition in Fish)
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