Aquaculture involves farming of commercially important species of finfish and shellfish. Intensification of aquaculture practices has led to many diseases of commercial importance. Probiotics are beneficial microorganisms used in aquaculture to improve the health and disease resistance of the cultured fish. It is considered as a safe alternative to antibiotics which confer resistance in the microbes when used indiscriminately. | Antibiotic resistance in bacterial isolates from commercial probiotics used in aquaculture