Osteometric and topographic measurement of the skull and mandible of Siirt coloured mohair goat with three-dimensional (3D) modelling technique.

Abstract

The Siirt coloured mohair goat is one of the breeds that has contributed significantly to the existence of mohair goats reared in Türkiye. Morphological and morphometric characteristics of the Siirt coloured mohair goat remained vague owing to a lack of studies. Recent advances in high-tech imaging have replaced conventional two-dimensional anatomical structures with three-dimensional (3D) models. In our study, morphometric features were determined by 3D modelling from computed tomography images obtained from the skull and mandibular bones of Siirt coloured mohair goats. For this purpose, the skulls and mandibular bones of 20 Siirt coloured mohair goats (10 females and 10 males) were used. The images were reconstructed with the help of the 3D Slicer (5.0.2) software program. The craniometric data were analysed in terms of sexual dimorphism, and statistically significant difference was found in the A5, A18, and A31 measurement parameters (p < 0.05) and skull index (p < 0.01) parameters. In the mandible measurements, there was a statistically significant difference between the sexes in C5, C10 measurement points (p < 0.05), C2, C8, C12, C18, and C21 measurement points (p < 0.001) and surface area parameter (p < 0.01). The morphometric data obtained is a resource in the fields of zoo archaeology, anatomy, forensics, anaesthesia, surgery, and treatment.