Lameness treatment timeliness is the single most important determinant of welfare outcomes for dairy cattle — with early treatment producing dramatically better outcomes than delayed intervention in all common lameness conditions.
Lameness treatment timeliness welfare is ultimately a detection problem — treatment that is available but not applied does not improve welfare. Systematic detection through regular locomotion scoring, rather than relying on farmers to notice lameness developing over days or weeks, consistently reduces the time between onset and treatment. Every day of untreated lameness represents a day of chronic pain in an animal that continues bearing weight on a damaged limb. The welfare case for systematic detection programs is therefore the welfare case for pain prevention rather than pain treatment.