Ultrastructural observation on the response of equine hoof defects to dietary supplementation with Farrier's Formula.
Authors: Kempson
Journal: The Veterinary record
Summary
# Editorial Summary: Farrier's Formula and Hoof Horn Ultrastructure Kempson's 1991 investigation examined whether dietary supplementation could address two prevalent categories of hoof horn pathology: structural defects such as sand cracks and crumbling around nail holes, and biomechanical compromise including chronic bruising and heel collapse in 18 horses. Using transmission and scanning electron microscopy to evaluate sequential hoof clippings, the researchers tracked microscopic changes in horn integrity alongside clinical observations over a 24-month period. Progressive improvements in both gross morphology and ultrastructural horn quality became evident within six weeks of dietary supplementation, with newly grown horn maintaining superior quality throughout the two-year follow-up with no deterioration recorded. This finding is particularly significant for practitioners managing chronic hoof conditions, as it demonstrates that systemic nutritional intervention can produce sustained structural improvements rather than merely masking symptoms. The ultrastructural evidence provides objective validation for horn quality recovery, offering practitioners a evidence-based rationale for recommending dietary supplementation as part of comprehensive hoof management protocols.
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Practical Takeaways
- •Farrier's Formula supplementation may be effective for managing sand cracks and horn quality issues, with visible improvements expected within 6 weeks.
- •Hoof horn quality improvement appears stable long-term (at least 2 years), suggesting dietary intervention addresses underlying horn defects rather than providing temporary cosmetic improvement.
- •This supplement may be a useful adjunct for horses with chronic bruising and structural hoof problems like collapsed heels, but the lack of control group limits strength of recommendation.
Key Findings
- •All 18 horses showed progressive improvement in gross and microscopic hoof horn structure following dietary supplementation with Farrier's Formula.
- •Clinical improvement was evident starting 6 weeks after supplementation began, as demonstrated by transmission and scanning electron microscopy.
- •No relapse of hoof defects occurred during the 2-year follow-up period once good quality horn had grown.