Enrichment for commercial poultry has moved from theoretical concept to practical welfare intervention with strong scientific support. Understanding what works helps advocates evaluate and push for effective implementation.
The science of poultry enrichment has matured significantly, moving from general advocacy for enrichment toward specific understanding of what enrichment produces which welfare benefits through which mechanisms. This specificity matters because it allows welfare standards to specify effective enrichment rather than allowing nominal provision that technically complies but produces no welfare benefit. Hay bales that increase ranging; perches that build bone density; pecking blocks that divert feather pecking; skylights that improve leg health - each has a specific welfare mechanism that allows welfare standards to require effective provision. Advocates who understand the evidence can push for specific, effective enrichment requirements rather than vague enrichment mandates.