Seaweed based nutraceutical in aquaculture

Chandrasekar, S and Kayalvizhi and Rehman, Saima and Gora, Adnan Hussain and Ebeneezar, Sanal (2024) Seaweed based nutraceutical in aquaculture. In: Course Manual: ICAR Winter School on Harnessing Recent Advances in High-Value Compound Development and Seaweed Biomass Utilization for Human Well-being: Propelling Atmanirbhar Swastha Bharat and Empowering Farmers 15th February to 06th March 2024. CMFRI Training Manual Series (38). ICAR- Central Marine Fisheries Research Institute, Kochi, pp. 432-439.

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Abstract

Aquaculture has emerged as an essential source of seafood for the ever growing human population, playing a significant role in ensuring global food security. With the increasing demand for nutritious seafood driven by population growth and the depletion of wild fish stocks, aquaculture serves as a vital link between supply and demand (Garlock, et al., 2022). However, continually increasing aquafeed costs and disease outbreaks have become common challenges and questioning the sustainability of aquaculture (Barasa et al., 2022; Afewerki et al., 2023). Addressing these challenges is imperative, necessitating the urgent need to find a cost-effective and health-promoting feed ingredients. The goal is to support fish growth while preventing diseases in aquaculture production. In recent times, there has been a surge in interest regarding the utilization of diverse seaweeds—such as red seaweed (e.g., Gracilaria, Porphyra), brown seaweed (e.g., Laminaria, Ascophyllum), and green seaweed (e.g., Ulva, formerly Enteromorpha)—as potential sources of bioactive compounds and feed ingredients for incorporation into aquafeed given their favorable nutritional composition, environmental sustainability, and potential health-promoting factors for farmed fish (Wan et al., 2019). Numerous studies suggest that seaweed and seaweed-based functional metabolites, when included as supplements in aquafeed, can enhance serum immune and antioxidant status, as well as disease resistance in fish (Akbary et al., 2018; Thepot et al., 2021).

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