Biosecurity in shrimp farming can be defined as the preventive measures for the exclusion of specific pathogens from cultured shrimps. Nowadays, Disease outbreaks in shrimp culture is considered as the highest level of threat. Based on the previous history of the last few years since the development of shrimp culture, mass disease outbreak has caused havoc throughout the shrimp producing regions. Apart from ensuring Pathogen-free status as SPF seeds, farmers should give equal attention to horizontal transmission of diseases from pond to pond, farm to farm, and village to village.

This is done by following precautionary measures, through proper coordination among farmer’s associations regarding judicious use of water resources, seed stocking density, periodic treatment and disposal of sludge, drainage after harvest, closure, and disposal of crops due to viral diseases, etc.

The following biosecurity measures to be followed in shrimp farming:

• Use SPF Post Larvae(PL)
• Use reservoir and water treatment system
• Minimal / Zero water exchange system
• Correct stocking density based on available infrastructure
• Use crab and dog fence
• Use bird scare lines
• Vehicle movement and disinfection
• Personal hygiene and facilities of farm workers
• Disinfection of equipments and nets after every use
• Control movement of workers, within the farm and from outside farm
• Control movement of outsiders not related to that form