Role of Probiotics in Aquaculture Nutrition and Health Management

Nair, V Anusree and Sayooj, P and Parvathy, M S (2026) Role of Probiotics in Aquaculture Nutrition and Health Management. In: Beyond Blue Horizons Training Manual for BSc (Agri) students of Kerala Agricultural University. ICAR- Central Marine Fisheries Research Institute, Kochi, pp. 118-124.

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Abstract

The exploration of probiotics in aquatic environments have opened a new frontier in nutritional and health management. Commonly used probiotics in aquaculture include beneficial bacteria from genera such as Bacillus, Lactobacillus, Enterococcus, Pediococcus, Saccharomyces etc. In aquaculture, these microorganisms are delivered through water, feed, or live-feeds to improve host nutrition, enhance immunity, modulate gut microbiota and mitigate disease outbreaks (Ringø et al., 2020). Their impact is in benefiting the host animal, the aquatic environment, and the microbial community within the culture system. The integration of probiotics into aquaculture practices also supports the global drive towards reducing antibiotic dependence, aligning with the principles of sustainable aquaculture and one health. By reducing reliance on antibiotics and chemicals, probiotics not only safeguard aquaculture productivity but also protect consumer health and environmental integrity. With the rise of advanced tools such as next-generation sequencing and metagenomics, new avenues have opened for the identification, characterization and application of effective probiotic strains tailored to specific aquaculture systems.

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