Population of Vibrio Parahaemolyticus (Pathogen) and Bacillus (Beneficial Bacteria) in Penaeus Monodon (Fabricus, 1798) Culture

Problem statement: The present work was attempted to evaluate the probiotic activity of Bacillus spp. in shrimp health management. Approach: Penaeid culture ecosystem as a confined environment with huge inputs always encourages the proliferation of pathogenic bacteria like Vibrios. Results: From the present study and earlier reports it is understood that these pathogens alone or combine with virus especially White Spot Syndrome Virus (WSSV) lead to sudden disease outbreaks and mortality. However the unwarranted and unwanted usage of antibiotics causes negative impacts rather than controlling diseases. Conclusion: Based on this, it is concluded that application of suitable and effective probiotics (Bacillus) will certainly reduce population of pathogens and provide a congenial pond environment for shrimp culture. However, this could be achieved by the effective usage of commercially available probiotics for maintaining good pond environment.