Pig Neonatal Mortality: Prevention Through Farrowing Management

Pre-weaning piglet mortality averages 15-20% in commercial pig production, representing a major welfare failure that improved farrowing management can significantly reduce.

Key Facts

Pre-weaning mortality in commercial sow herds averages 15-20%, with crushing by the sow accounting for 50-60% of deaths
Hypothermia is the second leading cause — neonatal piglets have limited ability to regulate body temperature
Starvation from competition among littermates causes mortality and suffering in larger litters
Genetic selection for hyperprolificacy (larger litters) has outpaced sow milk production capacity
Split suckling protocols ensure all piglets access colostrum within the critical first 6 hours
Heated creep areas, infrared lamps, and birth supervision dramatically reduce hypothermia mortality

Welfare Considerations

Neonatal piglet welfare encompasses both the suffering of piglets who die slowly from hypothermia or starvation and the suffering of sows unable to adequately provision abnormally large litters. The hyperprolificacy problem — selecting for litters of 15-20 piglets when a sow has 12-14 functional teats — is a welfare harm embedded in the genetics of modern pig production. Each additional piglet above functional teat number creates competition that results in suffering for weaker littermates. Welfare improvement requires both management interventions (supervision, split suckling, heating) and genetic policy reconsideration about optimal litter size for sow and piglet welfare.

What You Can Do

Support welfare certification schemes that include limits on litter size in hyperprolific sow breeding programs
Choose pork from producers who publish pre-weaning mortality rates and have improvement programs
Advocate for research into sow genetics that optimizes litter size for sow capacity rather than maximum piglets
Support regulations requiring farrowing supervision during peak birth periods to reduce preventable deaths