Recognizing pain in different livestock species requires species-specific knowledge, as each animal communicates distress differently and all are selected to minimize visible signs of vulnerability.
Pain recognition in livestock is the gateway to pain treatment — a problem that cannot be addressed without first being identified. The evolutionary masking of pain by prey species creates a systematic bias toward underestimation that is reinforced by economic pressures discouraging veterinary consultation. Validated assessment tools that use objective behavioral and physiological indicators reduce this bias and provide a basis for treatment decisions. Integrating routine pain assessment into farm management — not just at obvious injury events but as part of regular welfare monitoring — is one of the most impactful infrastructure investments available for farm animal welfare. Training farm workers in pain recognition is equally important and more scalable than increasing veterinary visits alone.