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- Title
Exploring the Antioxidant and Genoprotective Potential of Salicornia ramosissima Incorporation in the Diet of the European Seabass (Dicentrarchus labrax).
- Authors
Marçal, Raquel; Sousa, Pedro; Marques, Ana; Pereira, Vitória; Guilherme, Sofia; Barreto, André; Costas, Benjamin; Rocha, Rui J. M.; Pacheco, Mário
- Abstract
Simple Summary: Salicornia ramosissima was studied as a potential feed material for juvenile European seabass in aquaculture. This halophyte was incorporated in three different levels (2.5, 5 and 10%) into the fish diet for two months. The results showed no negative impact on the fish's growth, and there was an improvement in antioxidant activity in specific tissues, particularly through the GSH-related defense subsystem. A genotoxic trigger was also identified in the first month, which was considered a protective mechanism, and in the second month, a clear protection of DNA integrity was observed, especially at higher supplementation levels. Overall, the findings suggest that supplemented diets with S. ramosissima have functional benefits, offering a potential way to enhance aquaculture practices and utilize a novel, low-value raw material. The identification of novel feed materials as a source of functional ingredients is a topical priority in the finfish aquaculture sector. Due to the agrotechnical practices associated and phytochemical profiling, halophytes emerge as a new source of feedstuff for aquafeeds, with the potential to boost productivity and environmental sustainability. Therefore, the present study aimed to assess the potential of Salicornia ramosissima incorporation (2.5, 5, and 10%), for 2 months, in the diet of juvenile European seabass, seeking antioxidant (in the liver, gills, and blood) and genoprotective (DNA and chromosomal integrity in blood) benefits. Halophyte inclusion showed no impairments on growth performance. Moreover, a tissue-specific antioxidant improvement was apparent, namely through the GSH-related defense subsystem, but revealing multiple and complex mechanisms. A genotoxic trigger (regarded as a pro-genoprotective mechanism) was identified in the first month of supplementation. A clear protection of DNA integrity was detected in the second month, for all the supplementation levels (and the most prominent melioration at 10%). Overall, these results pointed out a functionality of S. ramosissima-supplemented diets and a promising way to improve aquaculture practices, also unraveling a complementary novel, low-value raw material, and a path to its valorization.
- Subjects
EUROPEAN seabass; DIET; FISH growth; FISH feeds; SUSTAINABLE aquaculture; SUSTAINABILITY
- Publication
Animals (2076-2615), 2024, Vol 14, Issue 1, p93
- ISSN
2076-2615
- Publication type
Article
- DOI
10.3390/ani14010093