World Aquaculture Singapore 2022

November 29 - December 2, 2022

Singapore

UNRAVELLING THE POTENTIAL OF MANGROVE-DERIVED Streptomyces AS PROBIOTICS IN AQUACULTURE

Joanna X. H. Goh*, Loh T. H. Tan, Jodi W. Law, Kok G. Chan, Kooi Y. Khaw, Vengadesh Letchumanan, Learn H. Lee, Bey H. Goh

 

 Novel Bacteria and Drug Discovery Research Group (NBDD)

Microbiome and Bioresource Research Strength (MBRS)

Jeffrey Cheah School of Medicine and Health Sciences

Monash University Malaysia

Selangor Darul Ehsan 47500, Malaysia

joanna.goh@monash.edu

 



The intensiveness of shrimp farming is constrained because increasing stocking density often compromises animal growth and increases the risk of infectious disease transmission. For instance, a single episode of acute hepatopancreatic necrosis disease (AHPND) caused by Vibrio parahaemolyticus can potentially wipe out the entire shrimp batch within a short time frame and incur severe financial losses. There is indeed an urgency to seek a sustainable solution to break through this bottleneck in shrimp farming.

In contrast to conventional antibiotics applications, probiotics might represent a safer and more sustainable alternative in disease control among cultured shrimp species. It is hypothesised that the beneficial bacteria in the natural habitat of shrimps confers a protective effect on the animals against opportunistic pathogens. Our research aims to study the suitability and benefits of introducing mangrove-derived bacteria as probiotics in shrimp farming.

Conclusion: Streptomyces was found effective in enhancing disease resistance against V. parahaemolyticus infections, enhancing the survival rate of shrimps and in ameliorating the water quality.