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Fishes
Special Issues
Current Trends in Growth and Metabolism of Fishes
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Current Trends in Growth and Metabolism of Fishes

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Nutrition and Feeding".

Deadline for manuscript submissions: closed (10 April 2023) | Viewed by 2662

Special Issue Editors

Dr. Shan He

E-Mail Website
Guest Editor
Key Laboratory of Freshwater Animal Breeding, Wuhan, China
Interests: fish feeds; food intake; metabolism regulation; amino acids; glucose
Special Issues, Collections and Topics in MDPI journals
Dr. Songlin Li

E-Mail Website
Guest Editor
Research Centre of the Ministry of Agriculture and Rural Affairs on Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai 201306, China
Interests: lipid metabolism; lipid deposition; aquaculture nutrition; fish physiology; metabolic regulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Aquaculture is growing, expanding and intensifying in almost all regions of the world, which plays a vital role in providing sustainable high-quality protein and poly-unsaturated fatty acids for human beings. However, some issues remain to be solved during aquaculture, such as metabolic liver disease, immunity decline, and oxidative stress caused by the irrational use of compound feed. Therefore, it is essential to further understand the physiological character of fish and explore the digestion, absorption, and metabolism of nutrients. This Special Issue aims to collect studies (original research articles, perspectives, reviews, and mini reviews) that focus on nutritional physiology and metabolism in relation to growth performance.

Dr. Shan He
Dr. Songlin Li
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. Fishes 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 2600 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
  • growth
  • physiology
  • metabolism
  • nutrition

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Published Papers (3 papers)

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Research

13 pages, 3263 KiB  
Article
LC-MS Based Metabolomic Profiling of Largehead Hairtail (Trichiurus japonicus) Ovary Reveals Metabolic Signatures of Ovarian Developmental Process (II–IV)
by Liu-Ying Feng, Li-Ping Yan, Run-Wei Li, Sheng-Fa Li, Jia-Hua Cheng and Yan Jin
Fishes 2023, 8(5), 262; https://doi.org/10.3390/fishes8050262 - 14 May 2023
Viewed by 1784
Abstract
Trichiurus japonicus is an economically important fish that ranks 11th in global marine fish capture production. However, the reproductive characteristics of this fish have undergone notable changes in recent decades, potentially affecting the quality of offspring and sustainable utilization. To improve our understanding [...] Read more.
Trichiurus japonicus is an economically important fish that ranks 11th in global marine fish capture production. However, the reproductive characteristics of this fish have undergone notable changes in recent decades, potentially affecting the quality of offspring and sustainable utilization. To improve our understanding of the physiological regulation of maturation in T. japonicus, untargeted liquid chromatography mass spectrometry was utilized to identify the small molecules that characterize the comprehensive metabolic profiles of ovaries during ovary development from stage II to stage IV. According to the results of OPLS-DA, the ovarian metabolite profiles of the three developmental stages were separated. The concentrations of 124 and 100 metabolites were significantly altered between stage II vs. III and III vs. IV, respectively. Lipids and lipid-like molecules accounted for the largest proportion of the altered metabolites, followed by amino acids, peptides, and analogues. The significantly altered metabolites-enriched pathways differed slightly between stages II and III and stages III and IV. Steroid-related pathways were heavily affected during stages II to III, while significantly altered metabolites from stages III to IV were involved in oocyte-maturation-related pathways. Through metabonomics analysis, potentially important metabolic pathways and metabolites between different ovarian stages were detected, providing basic information for further investigation of maturation mechanisms in wild fish. Full article
(This article belongs to the Special Issue Current Trends in Growth and Metabolism of Fishes)
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16 pages, 2955 KiB  
Article
Transcriptome Analysis Provides an Overview of Genes Involved in the Peculiar Food Preference at First-Feeding Stage in Mandarin Fish (Siniperca chuatsi)
by Ling Li, Shu-Lin Tang, Shan He and Xu-Fang Liang
Fishes 2023, 8(1), 17; https://doi.org/10.3390/fishes8010017 - 27 Dec 2022
Cited by 2 | Viewed by 2508
Abstract
The mandarin fish (Siniperca chuatsi) is an important economic fish species in China. Many carnivorous fish larvae feed on zooplankton or microdiets. However, the mandarin fish larvae feed on live prey fish exclusively, while refusing zooplankton or microdiets. A stable supply [...] Read more.
The mandarin fish (Siniperca chuatsi) is an important economic fish species in China. Many carnivorous fish larvae feed on zooplankton or microdiets. However, the mandarin fish larvae feed on live prey fish exclusively, while refusing zooplankton or microdiets. A stable supply of palatable live prey fish results in high costs. Moreover, the application of live prey fish might bring the risk of pathogens. However, little is known about the genes underlying the food preference of mandarin fish larvae. Partial offspring of the domesticated strain could feed brine shrimp from three days post-hatching (dph), the open mouth day. In the present study, the mandarin fish larvae were randomly divided into three groups, then treated differently at 3 dph: (1) unfed; (2) fed with live prey fish; (3) fed with brine shrimp (Artemia). Differentially expressed genes were identified by RNA-seq. The differential expression of the transcription factors involved in retinal photoreceptor development and differentiation might contribute to the intake of brine shrimp in mandarin fish larvae. Meanwhile, the digestive enzyme genes involved in protein, fat, and carbohydrate digestion have been expressed in mandarin fish larvae at 3 dph, contributing to the digestion of ingested food. Our study provides an overview of genes and biological processes involved in the peculiar food preference at the first-feeding stage in mandarin fish larvae and has critical importance to the future application of non-fish live feeds in the culture of mandarin fish larvae. Full article
(This article belongs to the Special Issue Current Trends in Growth and Metabolism of Fishes)
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12 pages, 286 KiB  
Article
Growth, Muscle Nutrition Composition, and Digestive Enzyme Activities of the Juvenile and Adult Siniperca chuatsi Fed on Live Baits and a Formulated Diet
by Liyun Ding, Yanping Zhang, Jiacheng Chen, Wenjing Chen, Shouqi Xie and Qingtang Chen
Fishes 2022, 7(6), 379; https://doi.org/10.3390/fishes7060379 - 8 Dec 2022
Cited by 7 | Viewed by 2085
Abstract
The present study aimed to evaluate the feasibility of a formulated diet to replace live baits as feed for Siniperca chuatsi. A 2 × 2 factorial design with three replicates was used to investigate the effects of conventional live baits (LB) and [...] Read more.
The present study aimed to evaluate the feasibility of a formulated diet to replace live baits as feed for Siniperca chuatsi. A 2 × 2 factorial design with three replicates was used to investigate the effects of conventional live baits (LB) and a formulated diet (FD) on the growth, muscle nutrition composition, and digestive enzyme activities of S. chuatsi at two growth stages. The results showed that the feed conversion ratio (FCR) in the FD group was significantly lower than that in the LB group. The final body weight (FBW) and weight gain (WG) were not significantly different between the two feeding modes. However, at the juvenile stage, the specific growth rate (SGR) in the FD group was significantly lower than that in the LB group. Muscle moisture, crude protein, and crude lipid contents were not influenced by dietary treatments. There were no significant differences in ∑EAA, ∑NEAA, and ∑AA compositions of the juvenile and adult stages fed the two kinds of diets. At the juvenile stage, histidine (His) content in the FD group was significantly higher than that in the LB group; at the adult stage, cysteine (Cys) content in the FD group was significantly higher than that in the LB group; at both growth stages, Met content in the FD group was significantly lower than that in the LB group. The FD group showed higher levels of ∑SFA, ∑HUFA, ∑n-3PUFA, n-3/n-6, EPA, and DHA than the LB group did, whilst the opposite occurred in the MUFA levels. In addition, fish fed with LB had significantly higher values of pepsin and intestinal trypsin activities in the juvenile fish compared to the FD group, but the activities were not significantly different between the two feeding modes at the adult stage. The activities of stomach and intestine amylase in the FD group were significantly higher than those in the LB group. Overall, these results showed that under long-term feeding conditions, S. chuatsi fed with the artificial diet had no significant difference in muscle crude protein, crude lipid, amino acid composition, and digestive capacity, but showed superiority in the composition of fatty acids such as EPA and DHA levels compared to the live baits group. Therefore, the artificially formulated diet might be a more appropriate feeding approach for sustainable development of the S. chuatsi industry. Full article
(This article belongs to the Special Issue Current Trends in Growth and Metabolism of Fishes)
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