Perspectives of Nanotechnology in Aquaculture: Fish Nutrition, Disease, and Water Treatment

Gabriel, Ndakalimwe Naftal; Habte‐Tsion, Habte‐Michael; Haulofu, Mayday

doi:10.1007/978-3-030-80371-1_15

Cited by 3 publications

(1 citation statement)

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“…Nanotechnology is a future-oriented scientific field that has already impacted many other sectors, such as medicine, cosmetics, energy and food (Kannan et al, 2023;Munekata et al, 2021). In aquaculture, nanoparticle technology has a broad spectrum of applications from pond water treatment and aquatic disease detection to the efficient delivery of cultural inputs, including medicines, vaccines and nutrients, to improve the efficiency and sustainability of the aquaculture industry (Aliko et al, 2024;Gabriel et al, 2022;Jeyavani et al, nanotechnology in aquaculture sector is faced with some limitations, including the cost-effectiveness of available resources and the practical risks for the application of nanotechnology in aquaculture practices, which should be concerned before industrialization (Munekata et al, 2021). Besides, there is limited information about the impact of nanoencapsulated natural compounds on the haematology and immunity of aquatic species (Nasr-Eldahan et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary nanoliposome‐coated astaxanthin on haematological parameters, immune responses and the antioxidant status of rainbow trout (Oncorhynchus mykiss)

Besharat,

Islami,

Soltani

et al. 2024

Veterinary Medicine & Sci

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BackgroundAstaxanthin is the most prevalent carotenoid in the marine environment and is widely used as an additive in formulated aquafeeds.ObjectivesA 60‐day feeding trial was conducted to consider the effect of dietary nanoliposome‐coated astaxanthin (NA) on haematological parameters, serum antioxidant activities and immune responses of rainbow trout, Oncorhynchus mykiss.MethodsA total of 450 healthy fish weighing 31.00 ± 2.09 g were randomly assigned in triplicate (30 fish per replicate) to 5 dietary treatments: 0 (control), 25.00, 50.00, 75.00, and 100.00 mg kg−1 NA.ResultsFish fed the diet supplemented with 50.00 mg kg−1 NA exhibited the highest values of red blood cells, white blood cells, haemoglobin and haematocrit of 1.64 ± 0.01 × 106 mm−3, 5.54 ± 0.21 × 103 mm−3, 8.73 ± 0.24 g dL−1 and 46.67% ± 0.88%, respectively, which were significantly higher than those fed the basal diet (p < 0.05). The lowest and highest percentages of lymphocytes (67.67% ± 0.33%) and neutrophils (27.33% ± 1.20%) were also obtained in fish fed 50.00 mg kg−1 NA compared to those fed the basal diet (p < 0.05). Fish receiving diet supplemented with 50.00 mg kg−1 NA revealed the highest serum activity in superoxide dismutase, catalase, glutathione peroxidase, lysozyme and alternative complement and the lowest level of total cholesterol, cortisol, aspartate aminotransferase and alanine aminotransferase than fish receiving the basal diet (p < 0.05). Serum immunoglobulin (Ig) and ACH50 contents significantly increased with increasing dietary NA supplementation to the highest values of 43.17 ± 1.46 and 293.33 ± 2.03 U mL−1, respectively, in fish fed diet supplemented with 50 mg kg−1 NA (p < 0.05).ConclusionsSupplementation of NA in rainbow trout diet at 50 mg kg−1 exhibited a positive effect on haematological parameters, antioxidant capacity and immune responses. Administration of such dosage can enhance rainbow trout immune responses against unfavourable or stressful conditions, for example disease outbreaks, hypoxic condition, thermal stress and sudden osmotic fluctuations, which usually happen in an intensive culture system.

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