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Fetal development of the segment-specific papillary body in the equine hoof

Hermann Bragulla1

  • 1Department of Veterinary Anatomy, Faculty of Veterinary Medicine, Freie Universität Berlin, 14195 Berlin, Germany. bragull2@zedat.fu-berlin.de

Journal of Morphology
|October 1, 2003
PubMed

Insights

The equine hoof

Area of Science:

  • Equine anatomy and physiology
  • Veterinary science
  • Developmental biology

Background:

  • The equine hoof's structure is crucial for its function.
  • Understanding hoof development is key to addressing lameness and performance issues.
  • The papillary body's role in hoof horn formation is not fully elucidated.

Purpose of the Study:

  • To describe the fetal development of the equine hoof's papillary body.
  • To investigate the influence of dermal papillae and lamellae on hoof horn quality.
  • To correlate structural development with mechanical properties of the hoof capsule.

Main Methods:

  • Histological examination of 51 equine fetuses, 9 newborn foals, and 5 adult horses.
  • Analysis of the shape and dimensions of dermal papillae and lamellae.
  • Correlation of structural features with hoof horn characteristics.

Main Results:

  • The papillary body develops through epidermal cell mitotic activity forming dermal microridges.
  • Microridges transform into dermal papillae and lamellae, influencing hoof horn structure.
  • The size and arrangement of horn tubules and lamellae determine mechanical properties.

Conclusions:

  • Segment-specific papillary body formation drives keratinization and unique hoof horn properties.
  • Hoof horn quality, determined by papillary development, is essential for hoof function.
  • This study clarifies the developmental basis for the equine hoof's mechanical integrity.

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