Abstract

One of the most studied or researched sector is probiotics. The probiotic sector has generated hundreds of publications, products and also created awareness of public health benefits. Probiotics means “live microorganisms (usually bacteria) that are similar to beneficial microorganisms found in the human gut that are taken as dietary supplements or found in foods.” Such work will include, competitive exclusion, generating inhibitory components, a striving for the same nutrients and interference with quorum sensing mechanism and improved immunity. Probiotic one of the most reliable approach to combat fish disease for sustainable aquaculture. This microbial intervention approach can boost fish yield by improving feed utilization, nevertheless provide protection from pathogens by different modes of action. The use probiotic containing food has the beneficial properties has been known for centuries in human health however research in probiotics for aquaculture was a journey from last two decades. Here we are discussing the role of probiotics in aquatic animal and aquaculture environment, particularly focusing on their functional changes such as growth promoter, biocontrol and bioremediation agents, interrupt the action of pathogens by producing inhibitory substances. Finally gut morphology of rohu, Labeo ruhita were compared between probiotic and basal diet fed fishes.

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