Evaluation of 'In-Parlour Scoring' (IPS) to Detect Lameness in Dairy Cows during Milking.
Authors: Laschinger Jasmin, Fuerst-Waltl Birgit, Fuerst Lisa, Linnenkohl Sophie, Pesenhofer Robert, Kofler Johann
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary Austrian researchers evaluated whether lameness could be reliably detected in dairy cows during routine milking parlour visits, testing this 'In-Parlour Scoring' (IPS) approach across eleven farms using herringbone, side-by-side, and tandem parlour systems. Over five months, two independent assessors observed 990 recordings of 495 cows, examining weight-shifting behaviour, claw conformation, and distal limb abnormalities, then compared their findings against formal locomotion scoring (1–5 scale) conducted within 24 hours. Whilst nine indicators proved useful for predicting clinical lameness—including weight distribution changes, digital dermatitis, swollen interdigital spaces, and abnormal claw positioning—their reliability as individual diagnostic tools varied dramatically between raters (kappa values ranging from -0.002 to 0.965). Although the method showed excellent specificity (≥96%), its sensitivity was unacceptably low (≤24%), meaning it failed to identify the majority of lame animals. For equine practitioners and cattle professionals, this work underscores that opportunistic milking parlour assessments cannot substitute for dedicated locomotion scoring protocols; whilst certain visual cues warrant investigation, a single parlour-based observation lacks the sensitivity needed to reliably detect lameness before functional hoof trimming or veterinary intervention becomes necessary.
Read the full abstract on PubMed
Practical Takeaways
- •In-parlour scoring during milking can identify some lame cows with high specificity, but will miss most lame animals (low sensitivity), making it unreliable as a standalone lameness detection method
- •Hoof indicators observed during milking (weight distribution, claw conformation, swelling, skin lesions, digital dermatitis) show variable reliability between assessors and require standardised scoring protocols if used in practice
- •Routine locomotion scoring outside the parlour remains essential for comprehensive lameness detection and should not be replaced by in-parlour assessment alone
Key Findings
- •Nine indicators were identified as useful predictors of lameness (LCS ≥3): shifting weight, abnormal weight distribution, swollen heel/hock/interdigital space, lateral hock skin lesion, claw position score, digital dermatitis lesions, short dorsal claw wall, and claw hyperextension
- •Intra- and inter-rater reliability varied considerably with weighted kappa values ranging from -0.0020 to 0.9651 and -0.0037 to 1.0 respectively
- •In-parlour scoring demonstrated high specificity (≥96%) but very low sensitivity (≤24%) for predicting lameness
- •One-time in-parlour scoring has limited suitability as an alternative to locomotion scoring on Austrian dairy farms