Locomotion scoring is the most widely validated welfare assessment tool for cattle, providing a practical, repeatable method for quantifying lameness prevalence and tracking welfare outcomes at herd level.
Locomotion scoring works as a welfare intervention because it converts an invisible welfare problem — the chronic pain of lame cows — into a visible, measurable number that can be tracked and improved. Without systematic scoring, lameness remains diffuse and deniable: stockpersons see cows that seem to be managing rather than cows that are suffering. Regular scoring with published results and treatment thresholds forces the welfare problem into view. The key to realising the welfare benefit of locomotion scoring is closing the loop: scores must trigger treatment, not just recording. Farms that score regularly but have no treatment protocol for cows identified as lame generate data without welfare improvement. The gold standard is regular scoring, prompt treatment of score 3+ cows, root cause analysis of high-prevalence herds, and public reporting of outcomes as a welfare transparency and accountability measure.