PATHOGEN-FREE BLACK TIGER SHRIMP

Pathogen-free black tiger shrimp: New research paves the way for sustainable aquaculture in Brazil. Genics, a leader in aquatic pathogen detection and genetic analysis, is spotlighting new research which demonstrates the potential of Brazilian black tiger shrimp (Penaeus monodon) as a robust alternative to Pacific white-leg shrimp (Litopenaeus vannamei) in aquaculture systems.

The study, conducted in collaboration with researchers from the State University of Maranhão and CSIRO, assessed the pathogen load and genetic diversity of a domesticated population of black tiger shrimp from Ceará, Brazil, across 10 generations. Pathogen screening of 96 shrimp using molecular diagnostics and histopathology revealed no significant pathogens, establishing the population as a potential foundation for a specific pathogen-free (SPF) breeding program.

“This is a pivotal finding for the Brazilian shrimp farming sector,” said Dr. Melony Sellars, CEO of Genics.

“By demonstrating that local black tiger shrimp populations are pathogen-free and genetically diverse, we’re providing the industry with the tools to enhance resilience, reduce disease risk, and foster sustainable production systems.”

Genetic analysis using SNP markers showed a low inbreeding coefficient of 0.03, comparable to international populations in Vietnam and Australia. The findings suggest that the Brazilian broodstock is well-positioned to serve as the foundation for a structured breeding program focused on disease resilience and sustainable growth.

“Pathogen-free, genetically diverse populations are essential for aquaculture sustainability,” said Dr. Sellars.

“This research not only provides a blueprint for the Brazilian shrimp industry but also demonstrates the potential for local breeding programs to reduce reliance on imported stocks and mitigate the spread of infectious diseases.”

The study also highlighted the importance of comprehensive pathogen screening and genetic analysis as critical components of aquaculture management. Genics’ ShrimpID P. monodon service leverages high-density SNP markers to accurately assess genetic diversity and trace lineage, providing shrimp farmers with vital insights to inform breeding programmes and optimise stock performance — further supporting Genics’ mission to advance biosecurity and food security globally.

About Genics

Genics is an Australian biotechnology company focused on the development of the world’s most advanced early pathogen detection and breeding programme services, supporting global food security goals and biosecurity measures.

About Dr Melony Sellars

Award winning scientist, Dr. Melony Sellars has 25+ years of experience in Aquaculture, with an in-depth background in shrimp aquaculture. She has extensive expertise in the application of novel biotech solutions for industry, genetics and breeding programmes.