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  11. Assessment Of Conformation Scoring Of The Limbs As A Potential Explanatory Factor For Claw Health In Dairy Cows

Assessment of conformation scoring of the limbs as a potential explanatory factor for claw health in dairy cows

M N E Hillen1, B Vidondo2, C Syring1

  • 1Clinic for Ruminants, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.

Journal of Dairy Science
|June 13, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Limb conformation scoring in cows shows a significant link to claw health, though effect sizes are small. This suggests conformation assessment can aid in predicting future claw issues in livestock breeding programs.

Area of Science:

  • Veterinary Medicine
  • Animal Science
  • Genetics and Breeding

Background:

  • Conformation trait scoring is vital for evaluating livestock productivity and breeding suitability.
  • Previous research indicated low to moderate associations between specific limb traits and claw lesions.
  • A comprehensive approach is needed to understand the link between overall limb conformation and claw health.

Purpose of the Study:

  • To investigate the association between limb conformation scores and claw health in a large cohort of cows.
  • To determine if overall limb conformation, not just individual traits, predicts claw health outcomes.
  • To assess the utility of limb conformation scoring as a tool for breeding selection.

Main Methods:

  • An observational study involving 21,145 cows.
Keywords:
animal welfareclaw lesionlimb conformationphenotype scoring

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  • Claw health data were collected by professional trimmers and aggregated into general, digital dermatitis, and claw horn lesion categories.
  • Statistical analyses examined associations between limb conformation scores (subsection and overall) and claw health outcomes, controlling for parity, breed, herd size, and trimming frequency.

    • Main Results:

    • Limb conformation scores were significantly associated with general claw lesions and claw horn lesions.
    • Effect sizes were small, with increased odds for lesions across score categories.
    • Lowest limb scores correlated with a 66% increase in the odds of higher lesion severity.

    Conclusions:

    • Limb conformation scoring can be a supportive tool for assessing a cow's future claw health potential.
    • The multifactorial nature of claw health is reflected in the small effect sizes observed.
    • Further research into trait heritability is necessary to fully justify its use in breeding selection.