Sow longevity is both an economic and welfare indicator. Understanding culling reasons and improving longevity reduces unnecessary suffering and early removal.
Premature culling often follows a period of welfare compromise - lameness, reproductive failure, or disease. Sows culled in poor condition face additional transport and slaughter welfare risks. Improving sow longevity through better genetics, housing, and veterinary care simultaneously improves welfare and reduces the animal welfare harms associated with frequent culling.