Incorporation of red macroalgae (Galaxaura oblongata) in roach (Rutilus rutilus) fingerling diet: Effects on growth, immunity, oxidative status and intestinal health
Language English Country England, Great Britain Media print-electronic
Document type Journal Article
PubMed
39894439
DOI
10.1016/j.cbpb.2025.111076
PII: S1096-4959(25)00007-7
Knihovny.cz E-resources
- Keywords
- Antioxidant defense, Bioactive compounds, Gene expression, Immunity, Seaweeds, Tight junction proteins,
- MeSH
- Antioxidants metabolism MeSH
- Cyprinidae * growth & development metabolism immunology MeSH
- Diet veterinary MeSH
- Animal Feed * analysis MeSH
- Seaweed * chemistry MeSH
- Oxidative Stress MeSH
- Dietary Supplements MeSH
- Rhodophyta * chemistry MeSH
- Intestines growth & development drug effects MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Antioxidants MeSH
This study investigates the effects of the red macroalgae Galaxaura oblongata diet supplementation on roach (Rutilus rutilus) fingerlings growth and gene expression related to immunity, the intestinal barrier, and antioxidant status. Roach fingerlings (2.26 ± 0.04 g) were fed a basic diet supplemented with three different percentages of G. oblongata powder: 0.25 % (G1), 0.50 % (G2), and 1.0 % (G3) over 8 weeks, with a control group (C) receiving no supplementation. The study found that growth parameters significantly increased in the G1 and G2 groups compared to the C and G3 groups (P < 0.05). Immune responses, measured by total immunoglobulin (Ig) and lysozyme activity, showed a significant increase in the whole-body extract of the G2 group (P < 0.05) and the skin mucus of all treated groups compared to the control (P < 0.05). G. oblongata supplementation did not significantly affect catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx) activities in the whole-body extract, although GPx activity in skin mucus was significantly higher in the supplemented groups. Additionally, the gene expression of interleukin 1-beta (il-1β), occludin, gpx and sod, but not Toll-like receptor increased in G. oblongata treated groups. These results suggest that G. oblongata can serve as a beneficial feed additive in the culture of roach fingerlings, enhancing growth and immune function.
Department of Science and Technology University of Sannio 82100 Benevento Italy
Faculty of Marine Sciences and Technology Iskenderun Technical University Iskenderun 31200 Turkey
Radin Makian Azma Mehr Ltd Radinmehr Veterinary Laboratory Gorgan Iran
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