Abstract
In shrimp aquaculture, manipulation of microbiota using probiotics has been shown to control or inhibit pathogenic agents, can enhance digestive enzyme activity and growth performance, and enhance immune responses of the host toward the pathogenic infections or physical stress. Among the several probiotic candidates in shrimp aquaculture, species of Bacillus have brought well-encouraging results. Studies have documented that Bacillus species are able to secrete a wide range of extracellular substances and antimicrobial peptides, which improve feed digestion and absorption, boost shrimp health and immunity, promote shrimp growth and reproduction, and enhance survival against pathogenic microorganisms. This chapter addressed the efficacy and potency of bacilli probiotics on the growth performance, immunity, and disease resistance in shrimp aquaculture and discussed the present gaps and future studies needed.