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    Evaluation of Cold Carcasses of Kivircik and Romanov Lambs by Geometric Morphometric Method
    (Kafkas Univ, Veteriner Fakultesi Dergisi, 2024) Gundemir, Migena Gjoni; Yildiz, Alp Emre; Buyukunal, Serkan Kemal; Muratoglu, Karlo; Ozkan, Ermis; Demircioglu, Aysegul; Choudhary, Om Prakash
    Carcass discrimination is a very important issue in the evaluation of different sheep breeds as lamb meat for the red meat sector and the study aims to determine the carcass differences of Romanov and Kivircik lambs up to 6 months old by 2D geometric analysis. In this study was carried out with six months old 13 Kivircik and 16 Romanov lamb cold carcasses. Principal components (PC) that describe the most variation in shape were determined for all samples. A discriminant analysis was performed for the mean shapes of two different breeds. In terms of size (centroid size), Romanov's results were higher. The difference in shape (procrustes distance) was statistically significant for the whole carcass. The shape variations were pretty close for the top view of the whole carcass. It was observed that this analysis was not effective in the differentiation of breeds. The most significant analysis between the two feedings was in the side view of the whole carcass. A total of 26 PCs were obtained from the side view of the whole carcass, 25 PCs from the inside view of half carcass, and 12 PCs from the shape analysis made from the top view of the whole carcass as a result of PCA analysis. PC1 was found to describe for more than 40% shape variation for each view. The lower border of Romanov's rib cage was more ventral according to the results. Also, Kivircik had a straighter thoracal and lumbar vertebrae arrangement, while Romanov's was curved. Geometric morphometry can be a useful method for carcass separation.
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    Osteometric and topographic measurement of the skull and mandible of Siirt coloured mohair goat with three-dimensional (3D) modelling technique
    (Via Medica, 2024) Isbilir, Fatma; Guezel, Baris Can; Guelaydin, Ali; Choudhary, Om Prakash
    The Siirt coloured mohair goat is one of the breeds that has contributed significantly to the existence of mohair goats reared in T & uuml;rkiye. 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. (Folia Morphol 2024; 83, 3: 689-699)