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Biology
Special Issues
Aquatic Animal Nutrition and Feed
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Aquatic Animal Nutrition and Feed

A special issue of Biology (ISSN 2079-7737).

Deadline for manuscript submissions: 31 May 2025 | Viewed by 2344

Special Issue Editor

Dr. Yun Wang

E-Mail Website
Guest Editor
Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
Interests: aquaculture; shrimp; gene regulation; nutritional immunity; aquatic feed development

Special Issue Information

Dear Colleagues,

Aquatic animals require diverse nutrients, including protein, fat, carbohydrates, vitamins, and minerals, to ensure optimal growth and development. Feed quality is an important factor that determines the growth rate, yield, immunity, and disease resistance of aquatic animals. Therefore, the field of aquatic animal nutrition and feed science plays a pivotal role in promoting the healthy development of the aquaculture industry.

This Special Issue aims to compile the latest research on aquatic animals' nutritional requirements, metabolic processes, and regulatory mechanisms during their growth and reproduction stages. Additionally, our Special Issue intends to highlight the latest advancements in the development of aquatic animal feeds.

We look forward to receiving your contributions.

Dr. Yun Wang
Guest Editor

Manuscript Submission Information

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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. Biology 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

  • aquaculture
  • aquatic animals
  • nutrition
  • aquatic feed
  • immunity
  • metabolism

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Published Papers (3 papers)

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Research

17 pages, 1817 KiB  
Article
Physiological Stress Response and Oxidative Status in Tambaqui (Colossoma macropomum) Fed Diets Supplemented with Selenium
by Celma Maria Ferreira, Valéria Dornelles Gindri Sinhorin, Márcio Aquio Hoshiba and Janessa Sampaio de Abreu
Biology 2024, 13(12), 959; https://doi.org/10.3390/biology13120959 - 22 Nov 2024
Viewed by 435
Abstract
The present study aimed to evaluate the physiological responses to transport stress in juvenile tambaqui (Colossoma macropomum) fed a diet supplemented with hydroxy-selenomethionine (OH-SeMet; Selisseo®, Adisseo) and determine through stress biomarkers whether selenium supplementation could reduce the impact of [...] Read more.
The present study aimed to evaluate the physiological responses to transport stress in juvenile tambaqui (Colossoma macropomum) fed a diet supplemented with hydroxy-selenomethionine (OH-SeMet; Selisseo®, Adisseo) and determine through stress biomarkers whether selenium supplementation could reduce the impact of transport stress on tambaqui resilience. Juvenile fish (15.71 ± 1.90 g) were randomly distributed into five experimental groups; one fed a basal diet without inclusion of OH-SeMet (0.0 mg Se/kg) and four other groups fed supplemented diets with selenium in the form of OH-SeMet at concentrations of 0.3, 0.6, 0.9, and 1.2 mg Se/kg over 75 days. After this period, the fish were transported for 4 h in plastic bags (60 L), and sampling took place before transport (baseline), immediately after transport, and 24 h later. The effects of dietary OH-SeMet in tambaqui challenged by transport were studied in terms of antioxidative status (superoxide dismutase, catalase, glutathione peroxidase, glutathione s-transferase, and reduced glutathione); stress markers (serum cortisol, blood glucose, ionic and hematological parameters), and immunological status (respiratory burst activity and total protein, A/G ratio). Following transport, we observed an elevation in cortisol and blood glucose concentrations, accompanied by hemoconcentration, as evidenced by elevated hematocrit, erythrocyte count, hemoglobin concentration, and mean corpuscular hemoglobin concentration (MCHC). Additionally, there was a decrease in immune response, indicated by reduced respiratory activity of leukocytes and an osmotic imbalance, which culminated in hypochloremia, increased plasma protein concentration, and a rise in red blood cell volume, all of which were measured 24 h after the stressor was applied. Twenty-four hours after transport, the antioxidant defense system was activated, and no recovery of homeostasis was observed for most of the parameters analyzed. The dietary inclusion of selenium did not alleviate the hormonal, metabolic, hematological, and ionic changes caused by transport, but at a concentration of 0.9 mg Se/kg, it was able to increase the activity of enzymes related to oxidative stress (catalase and superoxide dismutase, mainly) in tambaqui juveniles submitted to this challenge. Full article
(This article belongs to the Special Issue Aquatic Animal Nutrition and Feed)
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16 pages, 3694 KiB  
Article
Antibacterial Effect of Fermented Pomegranate Peel Polyphenols on Vibrio alginolyticus and Its Mechanism
by Zhoulin Yu, Yucong Hong, Shuyan Zhao, Meng Zhou and Xiaohong Tan
Biology 2024, 13(11), 934; https://doi.org/10.3390/biology13110934 - 16 Nov 2024
Viewed by 689
Abstract
Vibrio alginolyticus frequently breaks out in aquatic animal breeding operations involving shrimp, and it can endanger human health through food and wound infections. The antibacterial effect and mechanism of fermented pomegranate peel polyphenols (FPPPs) on V. alginolyticus were investigated. The results indicated that [...] Read more.
Vibrio alginolyticus frequently breaks out in aquatic animal breeding operations involving shrimp, and it can endanger human health through food and wound infections. The antibacterial effect and mechanism of fermented pomegranate peel polyphenols (FPPPs) on V. alginolyticus were investigated. The results indicated that FPPPs had a strong inhibitory effect on the growth of V. alginolyticus, and their minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were 2 and 4 mg/mL. FPPPs significantly reduced biofilm formation and biofilm metabolic activity in V. alginolyticus, down-regulated the expression levels of lafA, lafK, fliS and flaK genes involved in flagellar synthesis and inhibited swimming and swarming motility (p < 0.05). Meanwhile, under the treatment of FPPPs, the activities of catalase (CAT) and superoxide dismutase (SOD) in V. alginolyticus were significantly reduced, and the levels of reactive oxygen species (ROS) and extracellular malondialdehyde (MDA) were significantly increased (p < 0.05). FPPPs also resulted in a significant increase in alkaline phosphatase (AKP) activity, protein and nucleic acid content, as well as conductivity from V. alginolyticus cultures. Scanning electron microscopy (SEM) images further revealed that V. alginolyticus treated with FPPPs showed leakage of intracellular substances, abnormal cell morphology and damage to cell walls and cell membranes, with the severity of the damage in a clear dose-dependent manner. Therefore, FPPPs can be used as a promising food-grade antibacterial agent, notably in seafood to control V. alginolyticus. Full article
(This article belongs to the Special Issue Aquatic Animal Nutrition and Feed)
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15 pages, 1595 KiB  
Article
Effect of Dietary Digestible Protein Levels on Muscle Growth and Oxidative Stress in Amazonian Pintado (Pseudoplatystoma reticulatum × Leiarius marmoratus)
by Stephane Vasconcelos Leandro, Daniel Rabello Ituassú, Valéria Dornelles Gindri Sinhorin, Danilo Henrique Aguiar, Paula Sueli Andrade Moreira, Ana Julia Lopes Braga Ferneda, Soraia Andressa Dall’Agnol Marques, Adilson Paulo Sinhorin, Anderson Corassa, Ana Paula Silva Ton, Leonardo Willian de Freitas and Maicon Sbardella
Biology 2024, 13(10), 825; https://doi.org/10.3390/biology13100825 - 15 Oct 2024
Viewed by 809
Abstract
This study aimed to evaluate the effects of dietary digestible protein levels on the growth dynamics and oxidative stress status of white muscle fibers in Amazonian Pintado (Pseudoplatystoma reticulatum × Leiarius marmoratus). Four hundred and fifty-five juveniles of Amazonian Pintado were [...] Read more.
This study aimed to evaluate the effects of dietary digestible protein levels on the growth dynamics and oxidative stress status of white muscle fibers in Amazonian Pintado (Pseudoplatystoma reticulatum × Leiarius marmoratus). Four hundred and fifty-five juveniles of Amazonian Pintado were fed diets containing varying digestible protein levels (225, 250, 275, 300, 325, 350, or 375 g kg−1) for 75 days. At the end of the experiment, the fish were fasted for 24 h, anesthetized, and euthanized to obtain muscle samples. The linear and quadratic effects of dietary digestible protein levels on white muscle fiber diameter, metabolite concentrations, and oxidative stress were assessed. The results revealed that increasing dietary digestible protein levels linearly raised the concentrations of free amino acids and total proteins in muscle tissue but also led to elevated levels of TBARS, indicating increased oxidative stress. Notably, the average area of muscle fibers with a cell area greater than 1133 µm2 decreased, reflecting restricted muscle hypertrophy, whereas glycogen and glucose levels also declined. These findings suggest that although high dietary digestible protein enhances protein and free amino acid concentrations in muscle tissue, it may compromise muscle hypertrophy and increase oxidative damage in Amazonian Pintado, underscoring the complexity of optimizing diet formulation. Full article
(This article belongs to the Special Issue Aquatic Animal Nutrition and Feed)
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