Pig Farm Biosecurity: Core Principles

What Biosecurity Is and Why It Matters

Biosecurity is a set of measures aimed at preventing the introduction and spread of disease agents on the farm. In modern pig farming, where large numbers of animals are concentrated in a limited space, a single outbreak of ASF or PRRS can wipe out years of work.

External Biosecurity

Controlling Farm Entry Installing vehicle disinfection barriers and separate personnel entry points is mandatory. All vehicles entering the premises must be treated before access is granted.

Quarantine for New Animals Any addition to the herd must undergo quarantine of at least 4 weeks in an isolated section. This allows the identification of hidden carriers before introducing animals to the main herd.

Restricting Visitors Visitors are potential carriers of pathogens. A shower, change of clothing, and footwear are mandatory before entering the production zone.

Internal Biosecurity

All-In, All-Out Principle Animal movement between sections must follow a one-directional flow with no backward movement. Each section must be fully cleaned and disinfected between batches.

Washing and Disinfection Mechanical cleaning of surfaces before applying disinfectants is a mandatory step. Disinfection without prior washing reduces effectiveness by 80–90%.

Monitoring and Documentation

Effective biosecurity is not just physical barriers — it also requires a documentation system: visitor logs, disinfection records, and serological test results. This is the foundation for risk analysis and confirming the farm's health status.

Conclusion

Investment in biosecurity is the cheapest way to avoid catastrophic losses. Building an effective system starts with planning at the farm design stage.