International comparison of pig weaning welfare standards reveals significant variation in minimum weaning ages, enrichment requirements, and post-weaning care that reflects different regulatory philosophies and industry structures.
International weaning standard comparison demonstrates that regulatory choices genuinely affect welfare outcomes — the 7-day difference between a 21-day and 28-day minimum weaning age represents measurable welfare improvement for millions of piglets annually. Countries that have chosen more protective standards have demonstrated their practical feasibility in commercial production contexts. The primary barrier to harmonization upward is the trade competitiveness concern that producers in higher-standard countries face — consumer willingness to pay welfare premiums is the economic mechanism that makes convergence toward better standards commercially viable.