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Antioxidants
Special Issues
Use of Antioxidant Supplementation in Aquaculture: Impact on Growth, Health,...
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Use of Antioxidant Supplementation in Aquaculture: Impact on Growth, Health, and Product Quality

A special issue of Antioxidants (ISSN 2076-3921).

Deadline for manuscript submissions: 20 September 2024 | Viewed by 534

Special Issue Editors

Dr. Luisa M. P. Valente

E-Mail Website
Guest Editor
1. CIIMAR/CIMAR-LA, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
2. ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
Interests: antioxidants; fish nutrition; sustainable aquaculture; One Health; fish robustness; environmental impact; muscle growth regulation and flesh quality; functional feeds and food; circular economy
Special Issues, Collections and Topics in MDPI journals
Dr. Marta Monteiro

E-Mail Website
Guest Editor
CIIMAR/CIMAR-LA, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
Interests: aquatic science; fish nutrition; cell culture; algae extracts; transcriptomics; oxidative stress assays; molecular biology; functional feeds

Special Issue Information

Dear Colleagues,

As the aquaculture sector expands, the intensified production conditions often lead to heightened stress and disease outbreaks, posing challenges to the overall productivity and the final product quality. Therefore, maintaining and improving oxidative status, particularly through suitable nutritional strategies, becomes crucial. Research indicates that antioxidants, whether of natural or synthetic origin, play a pivotal role in alleviating oxidative stress, mitigating inflammatory responses, and preserving meat quality. These compounds have become the essential components in aquafeeds due to their influence on fish antioxidant defenses and the overall welfare in aquaculture settings. Beyond stress mitigation, antioxidants show promise in enhancing growth and modulating flesh oxidative stability, thereby impacting the shelf-life of end products.

This Special Issue delves into the transformative potential of antioxidant supplementation in aquaculture, specifically exploring its effects on key aspects such as fish growth, health, and product quality. By emphasizing innovative approaches to enhance aquafeeds, contributors are encouraged to present research findings that shed light on the diverse effects of antioxidant interventions. Research topics may include understanding the mechanisms through which antioxidants interact with fish cellular processes, their impact on performance and immune response, their role in increasing fish stress resilience, or their contribution in improving flesh oxidative stability and shelf-life. This Special Issue aims to advance our understanding of how antioxidant supplementation can foster more sustainable and efficient aquaculture practices. Researchers are invited to contribute insights, paving the way for innovative strategies that elevate the overall performance and robustness in aquaculture settings.

We look forward to your contribution.

Dr. Luisa M. P. Valente
Dr. Marta Monteiro
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. Antioxidants 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 2900 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

  • functional feeds
  • oxidative stress
  • antioxidant supplementation
  • flesh quality
  • stress resilience

Published Papers (1 paper)

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Research

20 pages, 9384 KiB  
Article
Dietary Astaxanthin Can Promote the Growth and Motivate Lipid Metabolism by Improving Antioxidant Properties for Swimming Crab, Portunus trituberculatus
by Yao Deng, Shichao Xie, Wenhao Zhan, Hongyu Peng, Haiqing Cao, Zheng Tang, Yinqiu Tian, Tingting Zhu, Min Jin and Qicun Zhou
Antioxidants 2024, 13(5), 522; https://doi.org/10.3390/antiox13050522 - 26 Apr 2024
Viewed by 342
Abstract
This study aimed to assess the influence of varying dietary levels of astaxanthin (AST) on the growth, antioxidant capacity and lipid metabolism of juvenile swimming crabs. Six diets were formulated to contain different AST levels, and the analyzed concentration of AST in experimental [...] Read more.
This study aimed to assess the influence of varying dietary levels of astaxanthin (AST) on the growth, antioxidant capacity and lipid metabolism of juvenile swimming crabs. Six diets were formulated to contain different AST levels, and the analyzed concentration of AST in experimental diets were 0, 24.2, 45.8, 72.4, 94.2 and 195.0 mg kg−1, respectively. Juvenile swimming crabs (initial weight 8.20 ± 0.01 g) were fed these experimental diets for 56 days. The findings indicated that the color of the live crab shells and the cooked crab shells gradually became red with the increase of dietary AST levels. Dietary 24.2 mg kg−1 astaxanthin significantly improved the growth performance of swimming crab. the lowest activities of glutathione (GSH), total antioxidant capacity (T-AOC), superoxide dismutase (SOD) and peroxidase (POD) were found in crabs fed without AST supplementation diet. Crabs fed diet without AST supplementation showed lower lipid content and the activity of fatty acid synthetase (FAS) in hepatopancreas than those fed diets with AST supplementation, however, lipid content in muscle and the activity of carnitine palmitoyl transferase (CPT) in hepatopancreas were not significantly affected by dietary AST levels. And it can be found in oil red O staining that dietary 24.2 and 45.8 mg kg−1 astaxanthin significantly promoted the lipid accumulation of hepatopancreas. Crabs fed diet with 195.0 mg kg−1 AST exhibited lower expression of ampk, foxo, pi3k, akt and nadph in hepatopancreas than those fed the other diets, however, the expression of genes related to antioxidant such as cMn-sod, gsh-px, cat, trx and gst in hepatopancreas significantly down-regulated with the increase of dietary AST levels. In conclusion, dietary 24.2 and 45.8 mg kg−1 astaxanthin significantly promoted the lipid accumulation of hepatopancreas and im-proved the antioxidant and immune capacity of hemolymph. Full article
(This article belongs to the Special Issue Use of Antioxidant Supplementation in Aquaculture: Impact on Growth, Health, and Product Quality)
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