Moving from input-based to outcome-based welfare assessment for broiler chickens enables more meaningful measurement of actual animal experience rather than just housing conditions. Key outcome indicators provide a direct window into flock welfare status.
Input-based measures — stocking density, litter type, lighting — tell us what conditions birds experience but not how they are actually faring. Outcome-based measures close this gap by asking what the animal's body and behaviour reveal about its welfare state. A flock with perfect stocking density but poor ventilation may show high footpad dermatitis scores; outcome measures catch this failure where inputs would not. Integrating slaughterhouse feedback into on-farm welfare improvement cycles allows producers to see population-level consequences of management decisions. Consumer-facing welfare certification that incorporates outcome measure requirements — not just input standards — provides more meaningful assurance of actual welfare delivery.