Livestock welfare science provides the evidence base for improving the lives of billions of farm animals. Understanding the field helps advocates engage more effectively.
Livestock welfare science has matured significantly in recent decades, moving from a focus on minimum standards and preventing gross neglect to understanding positive welfare states and what animals need to thrive. The Five Domains model developed by Professor David Mellor provides a comprehensive framework that includes mental state assessment alongside physical indicators. Validated welfare assessment tools allow systematic comparison across farms and production systems, driving evidence-based improvement. The science demonstrates clearly that higher welfare systems are achievable at scale and that economic and welfare goals can be aligned.