Resistance of goat leather Obtained after Processing in a tannery in the São Francisco Sertão, Northeastern Brazil

Approximately 90% of goat farming in Brazil is concentrated in the Northeast, representing a relevant economic activity, although its potential remains underexploited, particularly in the leather market. Less than 10% of the skins delivered to tanneries are of superior quality, resulting in high industrial idleness. This study aimed to evaluate the physical-mechanical properties of goat leather, with emphasis on tensile strength in different anatomical regions: cervical, dorsal thoracic, thoracic limbs, and pelvic limbs. For the analysis, tensile tests were performed using an electromechanical Universal Testing Machine and Digital Line Micro Processing. The specimens were fixed in the machine clamps and subjected to increasing axial force until rupture. Statistical analysis included ANOVA, Tukey’s test (15%), Shapiro-Wilk, Bartlett, and verification of error independence, ensuring the validity of comparisons. Results indicated higher average resistance in the cervical region (234.19 N), followed by dorsal thoracic (204.66 N), pelvic limbs (204.29 N), and thoracic limbs (197.16 N), evidencing superior mechanical support capacity in the cervical area. This region also showed greater variability, while the dorsal thoracic region demonstrated higher structural homogeneity. The observed differences highlight the importance of leather anatomy for its selection in specific applications.