Dairy cow lameness estimates depend on how walking problems are classified
A Northwest European review found substantial variation in dairy cow lameness estimates. Scoring definitions mattered, and lower estimates in pasture-access subgroups did not establish a preventive effect.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Lameness estimates varied with the scoring definition used. The pooled estimate under a lenient definition suggested that walking problems affected a substantial proportion of cows. Pasture-access subgroups had lower prevalence estimates, but these associations cannot establish that pasture access caused the difference or predict what would happen in an individual herd.
Sparse herd information and unclear descriptions of scoring methods complicated interpretation. Some differences between studies remained unexplained after subgroup analyses.
What researchers found
Pooled lameness prevalence, lenient definition
Across studies from the last 25 years, this estimate used the lenient scoring definition; other definitions produced different estimates. Individual observation periods were not reported.
Classification affects who is counted
The lenient version allows slight walking irregularities without classifying a cow as lame. Its lameness criteria consider stride length, weightbearing and back posture. Different classification thresholds therefore affect how reported prevalence should be interpreted.
Associations leave management effects uncertain
The review identified associations involving pasture access, flooring, bedding and body condition. These findings raise questions about herd management, but they do not establish that changing any particular factor will reduce lameness.
The original publication
A systematic review and meta-analysis of lameness scoring methods and the prevalence of lameness of dairy cows in Northwest Europe.
Wessels W, Bokkers EAM, de Boer IJM et al.
J Dairy Sci · 2025
- PubMed ID
- 40614806
- Record checked
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