Growth performance improvement and mortality reductions derived from a PRSS large-scale control project in the US

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Country: United States
Source: 2012 The International Pig Veterinary Society

Key points:

  • A 70000-sow multisite production system with breeding herds endemically infected with PRRSV1 and PRRSV2.
     
  • Systematic breeding herd mass vaccination, followed by quarterly sow mass vaccination, and ongoing pig vaccination at weaning with Ingelvac PRRS MLV was applied.
     
  • A significant increase in ADWG and significant decrease in mortality was detected in both nursery and finisher pigs when compared against 24 months closeouts.