Abstract

Background:
Morphological variation in equine limb dimensions provides valuable insight into breed-specific characteristics, with biometric parameters serving as reliable tools for such evaluations.

Aim:
This study aimed to provide a quantitative characterization of the external morphology of the limbs in Iranian Arab horses.

Methods:
Morphometric data were collected from 30 adult specimens of this breed, encompassing key anatomical measurements: scapula length, arm length, forearm length, metacarpus length, forepastern length, metacarpus circumference, femur length, gaskin length, metatarsus length, hind pastern length, and metatarsus circumference.

Results:
Statistical analysis revealed that hind limb length displayed the lowest coefficient of variation, whereas forelimb length exhibited the highest, indicating differing degrees of morphological consistency across limb segments. Furthermore, comparative analysis across age and sex groups identified statistically significant differences in scapula length, arm length, forepastern length, and metacarpus circumference between stallions and mares.

Conclusion:
These findings underscore the influence of sexual dimorphism on specific limb traits in Iranian Arab horses and contribute to the understanding of breed morphology.

Key words: Iranian Arab horses; Limb; Biometry.