Hyperprolific pig genetics that increase litter size create neonatal welfare challenges when born piglets exceed the sow capacity to adequately feed and care for all offspring.
Hyperprolific genetics welfare creates a systemic problem — genetic progress in litter size has outpaced welfare management capacity, producing large litters where a predictable proportion of piglets cannot be adequately fed. Selection for litter size without concurrent selection for colostrum production, teat number, and maternal behavior has created a structural mismatch between genetic potential and welfare capacity. The welfare solution involves both management (nurse sow programs, targeted care) and genetic (selection for welfare trait balance alongside productivity) approaches. Regulatory or industry standards limiting maximum litter size selection are under discussion in several European countries.