ArticleArchives of Razi Institute2025
The Analysis of Norduz Sheep Mandible with DFA and PCA.
Article in Archives of Razi Institute, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors.
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Abstract
The Norduz region, which is located inside the boundaries of the Gürpınar district of Van province, is home to the Norduz sheep, a breed of Akkaraman sheep. A sheep breed that is only bred in the Norduz region is the Norduz sheep. It has proven to be able to adjust to the severe weather in Eastern Anatolia, and it has shown distinct performance metrics that set it apart from other breeds. In this work, the Norduz sheep's mandible was analyzed and inspected utilizing a geometric morphometric approach. By using principal component analysis, principle components in multidimensional data sets were found. Using discriminant function analysis, the differences between the samples were found. The study materials used to accomplish this came from Van slaughterhouses. Gender was a factor of interest, so a total of 20 mandibles (10 female and 10 male) were chosen for analysis. First, the skull's mandibles were taken out. The underlying muscles were then dissected. The mandibles were then heated for 20 to 30 minutes, and then hydrogen peroxide was used to bleach them. After drying, the mandibles were shot from the same 20-cm distance. Photographs of the mandibles' left lateral surfaces were captured. These variations were also subjected to formal and statistical studies. There were sixteen significant variations found using the main component analysis. The observed shape differences were explained by the first three variances in 58,647% of cases. The results of the discriminant function analysis, which produced the best results for gender discrimination, were quite pleasing, showing that people were clearly and distinctly different from one another. According to the previously indicated investigations, information was obtained about the anatomical traits and adaptations of the Norduz sheep mandible, which was used as a model case study in this area.
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