Lameness Scoring in Livestock: Guide to Welfare Assessment

Lameness Scoring and Welfare

Lameness is the most common welfare problem in cattle and one of the most significant in pigs, sheep, and goats. Validated lameness scoring systems provide the foundation for evidence-based welfare assessment, enabling farms to benchmark performance, identify problems early, and track the impact of management changes.

Why Lameness Scoring Matters

• Lameness causes pain — often chronic, ongoing pain that significantly reduces quality of life
• Lame animals reduce feed intake, social interaction, and normal behaviour
• Early detection (scoring 2 out of 5) allows treatment before welfare compromise becomes severe
• Herd-level lameness prevalence is a direct welfare indicator used in assurance schemes

Dairy Cattle: AHDB Mobility Scoring

• Score 0 (Sound): Walks with long even strides; no signs of lameness.
• Score 1 (Imperfect locomotion): Steps uneven but not short; able to walk at normal speed.
• Score 2 (Impaired locomotion): Clearly uneven weight bearing; reduced stride length. Target: treat immediately.
• Score 3 (Lame): Reluctant to bear weight on one limb; significantly arched back. Welfare emergency requiring urgent treatment.

Sheep: Five-Point Scale

• Score 0: No lameness, walks freely
• Score 1: Slight lameness, walks without difficulty
• Score 2: Moderate lameness, spends more time lying
• Score 3: Severe lameness, reluctant to rise, marked weight-bearing loss
• Score 4: Non-weight-bearing lameness

Pigs: Locomotion Scoring

• Gait abnormalities from slight stiffness to complete non-weight-bearing assessed during movement
• Particular attention to sows — lame sows should be assessed and treated promptly

Targets and Benchmarks

• Dairy cattle target: <10% of cows scoring 2+; <2% scoring 3
• Sheep: any sheep scoring 3+ requires immediate attention; flock lameness >2% triggers investigation
• Pigs: any lameness in sows is a welfare concern requiring prompt treatment

Using Scores to Drive Improvement

• Monthly dairy mobility scoring enables trend monitoring
• Flock lameness recording identifies seasonal patterns and treatment efficacy
• Abattoir feedback on foot lesions cross-validates on-farm scoring
• Foot health records linked to treatment protocols enable antibiotic stewardship

Key Takeaways

Lameness scoring is a practical, proven welfare monitoring tool. Regular, systematic scoring enables farms to detect problems early, measure improvement, and demonstrate welfare performance to assurance auditors — transforming lameness management from reactive to proactive.