Pig PRDC Prevention Through Herd Health Management

Preventing porcine respiratory disease complex requires integrated herd health management addressing pathogens, housing, and husbandry simultaneously. Vaccination alone is insufficient.

Key Facts

PRRSV-negative herds achieve dramatically lower PRDC incidence through strict biosecurity and negative replacement stock
Mycoplasma hyopneumoniae vaccination programmes significantly reduce the severity of co-infections with PRRSV and PCV2
Age segregation through all-in-all-out management with thorough cleaning reduces pathogen carry-over between batches
Adequate ventilation (0.5-4 air changes per minute depending on temperature) is critical to reducing airborne pathogen load
Stocking density at or below recommendations reduces fighting, stress, and disease transmission
Regular monitoring including gross pathology scoring at slaughter provides ongoing herd health performance data

Welfare Considerations

PRDC prevention through integrated herd health management requires sustained investment in veterinary expertise, biosecurity infrastructure, and management quality. The welfare return on this investment is significant — herds with low PRDC incidence have fewer animals experiencing respiratory distress, faster growth rates, and lower mortality. The economic case for prevention aligned with the welfare case creates an opportunity for genuine farm-level improvement.

What You Can Do

Work with a pig vet to develop an integrated PRDC prevention plan for your specific herd and pathogen profile
Implement all-in-all-out production with thorough cleaning and disinfection between batches
Assess ventilation system performance annually and rectify deficiencies promptly
Consider PRRSV-negative status through serology testing and appropriate management protocols
Score lung lesions at slaughter as a low-cost ongoing performance monitoring tool
Donate to pig respiratory disease research developing improved vaccine and management strategies