Piglet Mortality in Commercial Farrowing

Pre-weaning piglet mortality rates of 10-20% in commercial operations represent significant animal welfare concerns beyond simple production losses.

Key Facts

Crushing by the sow is the leading cause of piglet death, accounting for 40-50% of pre-weaning deaths
Starvation and hypothermia combined cause another 25-30% of losses
Genetic selection for large litter size has outpaced sow milk production capacity
Farrowing crates prevent sow movement but also severely restrict natural behavior
Free farrowing systems with careful design can achieve comparable piglet mortality to crated systems

Welfare Considerations

Piglet mortality in intensive farrowing is simultaneously a welfare failure for both sows and their offspring. Sows in farrowing crates experience extreme behavioral frustration from inability to nest, turn, or move freely. Yet the overcrowded litters of genetically selected hyperprolific sows also suffer — too many piglets competing for limited milk results in starvation of smaller individuals. Free farrowing systems that allow natural nesting behavior while providing piglet protection zones represent a genuine welfare advance when properly managed.

What You Can Do

Support pork certification schemes that are transitioning away from farrowing crates
Ask food companies about their farrowing crate phase-out commitments
Advocate for investment in free farrowing system research and development
Support research into appropriate litter size standards for sow welfare
Choose higher-welfare pork products from certified sources