“…Prebiotics are also used as energy sources for the gut microorganisms improving health outcomes in the host [18] . The prebiotics, such as oligosaccharides, mannan oligosaccharide (MOS), galactooligosaccharide (GOS), arabinoxylan-oligosaccharide (AXOS), inulin, and β-glucan, have been documented providing promising results in growth performance, immune stimulation, and disease resistance of aquatic animals [19] , [20] , [21] , [22] , [23] , [24] . Recent studies showed that probiotics can also improve growth, contribute to digestion, enhance immune responses, and control diseases [ 8 , [25] , [26] , [27] , [28] ].…”