Lactating Sow Welfare: Meeting the Demands of Nursing

The lactation period places enormous metabolic demands on sows and requires excellent management to prevent suffering and support welfare.

Key Facts

Sows lose an average of 12-15 kg body weight during a 28-day lactation period
High-producing sows may consume 8-10 kg of feed per day during peak lactation
Heat stress during lactation significantly reduces milk yield and increases piglet mortality
Sows need continuous access to fresh water consuming up to 35 litres per day during lactation
Nursing behaviour including side-lying for suckling requires adequate space and clean flooring

Welfare Considerations

Lactating sow welfare involves extreme physiological demands that can overwhelm animals already compromised by farrowing. High-yielding genetics that maximise milk production place sows in chronic energy deficit with associated immune compromise. Heat during lactation reduces feed intake precisely when nutritional demands are highest. Sows unable to meet their own nutritional needs through inadequate feeding or heat stress experience body condition loss that affects their welfare and productivity in subsequent pregnancies. Excellent feeding, cooling and housing management during lactation prevents most lactation-associated welfare problems.

What You Can Do

Support pig welfare standards with specific lactation nutrition and management requirements
Advocate for cooling provision requirements in farrowing buildings during warm periods
Choose pork from farms with documented lactation management protocols
Support research into sow welfare during lactation including optimal feeding and cooling strategies