Farm Animals

Pig Welfare: Mastitis in Sows

Mastitis and mastitis-metritis-agalactia (MMA) syndrome cause significant pain and welfare losses for sows in the periparturient period.

Key Facts

MMA affects approximately 10-15% of sows around farrowing, causing fever, reduced milk production, and systemic illness
Affected sows show reduced piglet nursing behaviour, increasing piglet starvation risk
Prompt NSAID and antibiotic treatment significantly reduces the duration and severity of MMA
Prevention through hygiene management, body condition, and appropriate feeding reduces MMA incidence

Welfare Considerations

MMA causes acute, painful illness in sows at the most vulnerable period of their production cycle, with welfare consequences for both sow and piglets. Prevention through management and prompt treatment when it occurs are achievable welfare improvements in all production systems.

What You Can Do

Support pork producers demonstrating systematic MMA monitoring and treatment protocols
Advocate for sow health monitoring protocols to be included in pig welfare certification
Engage with veterinary organisations developing MMA prevention and treatment guidelines