Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2026 / Volume: 72 Issue: 3

Principal component and discriminant function analysis of cranium and mandible in domestic buffalo (Bos bubalis)

Semine Dalga(KAFKAS ÜNİVERSİTESİ)0000-0001-7227-2513
Kadir Aslan(KAFKAS ÜNİVERSİTESİ)0000-0002-7617-0175
Pages
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Publication Date
2025-07-01
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It is anticipated that this research will add to the body of knowledge about a particular breed, zoo archaeology, or be used as an animal model in relevant health professions.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The purpose of this study was to use a geometric morphometric approach to ascertain the gender-related differences in the morphology of the domestic buffalo's skull and mandible.
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Key Findings & Data:The skulls yielded a total of 20 main components.
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Conclusion & Impact:It is anticipated that this research will add to the body of knowledge about a particular breed, zoo archaeology, or be used as an animal model in relevant health professions.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:buffalo · geometric morhometry · mandible

Abstract

The purpose of this study was to use a geometric morphometric approach to ascertain the gender-related differences in the morphology of the domestic buffalo's skull and mandible. The skulls yielded a total of 20 main components. The first principal component (PC1) alone was responsible for 37.066% of the variation among these principal components. The first principal component (PC1) alone was responsible for 26.242% of the total variation among the lateral principal components. PC1 showed a medial extension of the posterior portion of the ectorbital, while PC2 showed a lateral extension. In PC2 and PC3, the right facial tuber displayed a cranial and linear expansion, respectively. In PC1, the left facial tuber was directed caudally, and in PC2, it was directed cranially. The anterior border of the first premolar had a caudo-ventral extension in PC1 and a cranio-dorsal extension in PC2 and PC3, according to lateral studies. In PC1 and PC2, the anterior side of the ectorbital displayed a caudo-dorsal extension, but in PC3, it displayed a dorsal extension. The anterior margin of the first premolar displayed a caudal extension in the extension evaluation of the three principal component analyses with the highest values in the mandibles, where the data are completely integrated with one another. PC1 showed a caudo-dorsal extension, PC2 showed a cranio-dorsal extension, and PC3 showed a dorsal extension of the landmark at the level of the incisura vasorum facialum. It is anticipated that this research will add to the body of knowledge about a particular breed, zoo archaeology, or be used as an animal model in relevant health professions.

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Cite This Article

Dalga, S., Aslan, K. (2025). Principal component and discriminant function analysis of cranium and mandible in domestic buffalo (Bos bubalis). Ankara Üniversitesi Veteriner Fakültesi Dergisi, Volume: 72 Issue: 3. https://doi.org/10.33988/auvfd.1544641

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References (44)

  1. Akçasız ZN, Akbaş ZS, Özkan E, et al (2024): Geometric morphometric analysis of scapula at cats and dogs. Kafkas Univ Vet Fak Derg, 30, 481-487.
  2. Aköz M, Arik D, Kul M, et al (2017): Buffalo breeding: Buffalo breeding in Turkey from past to today. JSTR, 3,2422-8702.
  3. Atasever S, Erdem H (2008): Water buffalo raising and its future in Turkey. J Fac Agri, OMU, 23, 59-64.
  4. Balcarcel AM, Sánchez-Villagra MR, Segura V, et al (2021): Singular patterns of skull shape and brain size change in the domestication of South American camelids. J Mammal, 102, 220-235.
  5. Beecher RM, Corruccini RS (1981): Effects of dietary consistency on craniofacial and occlusal development in the rat. Angle Orthod Jan, 51, 61-9.
  6. Casanova P, Miquel P (2015): Geometric morphometrics to the study of skull sexual dimorphism in a local domestic goat breed. J Fish Lives Vet Scien, 3, 1-4.
  7. Choudhary OP, Kalita PC, Dalga S, et al (2022): Morphological studies on the skull bones of Indian mithun (Bos frontalis). Indian J Anim. Res, 56, 40–45.
  8. Çakar B, Tandir F, Güzel B, et al (2024): Comparison of skull morphometric characteristics of simmental and holstein cattle breeds. Animals, 14, 2085.
  9. Dalga S, Koçak S (2024): Examination of mandible in Morkaraman sheep using geometric morphometry method. MJAVL, 14, 11-20.
  10. Demiraslan Y, Demircioğlu İ, Güzel BC (2024): Geometric analysis of mandible using semilandmark in Hamdani and Awassi sheep. Ankara Univ Vet Fak Derg, 71, 19-25.
  11. Demiraslan Y, Özgel Ö, Gürbüz I, et al (2021): The mandibles of the Honamli and Hair goat (Capra hircus); a geometric morphometric study. Ankara Univ Vet Fak Derg, 68, 321–328.
  12. Demircioğlu İ, Demiraslan Y, Gürbüz İ, et al (2021): Geometric morphometric analysis of skull and mandible in Awassi ewe and ram. Kafkas Univ Vet Fak Derg, 27, 43– 49.
  13. Demircioğlu İ, Demiraslan Y, Güzel BC, et al (2022): Comparison of cranium shape in Hamdani and Awassi sheep using dorsal and lateral landmarks. Pakistan J Zool, 1-6.
  14. Ermiş Ö, Ünal B, Altundağ Y, et al (2024): Allometry and atlas shape analysis between Tekir and mix-breed cats. Kafkas Univ Vet Fak Derg, 30, 95-100.
  15. Fernandez Blanco MV, Cassini GH, Bona P (2023): A three-dimensional geometric morphometric analysis of the morphological transformation of Caiman lower jaw during post-hatching ontogeny. Peer J, 11,1-29.
  16. Gundemir O, Akcasiz ZN, Yilmaz O, et al (2023): Radiographic analysis of skull in Van cats, British shorthairs and Scottish folds. Anat Histol Embryol, 52, 512–518.
  17. Gündemir O, Duro S, Szara T et al (2023): Skull variation in different breeds sheep from Balkan countries. Annals of Anatomy, 249, 152083.
  18. Gündemir O, Szara T (2025): Morphological patterns of the European bison (Bison bonasus) skull. Sci Rep, 15, 1418.
  19. Gündemir O, Duro S, Jashari T, et al (2020): A study on morphology and morphometric parameters on skull of the Bardhoka autochthonous sheep breed in Kosovo. Anat Histol Embryol, 49, 365–371.
  20. Hammer Ø, Harper DAT, Ryan PD (2001): Past: Paleontological statistics software package for education and data analysis. Palaeontol Electronica, 4, 1-9.
  21. Janis CM, Theodor JM (2014): Cranial and postcranial morphological data in ruminant phylogenetics. Zitteliana 15–31.
  22. Jashari T, Duro S, Gündemir O, et al (2022): Morphology, morphometry and some aspects of clinical anatomy in the skull and mandible of Sharri sheep. Biologia, 77, 423–433.
  23. Jashari T, Kahvecioglu O, Duro S, et al (2022): Morphometric analysis for the sex determination of the skull of the DeltariIlir dog (Canis lupus familiaris) of Kosovo. Anat Histol Embryol, 51, 443–451.
  24. Klingenberg CP, Marugan-Lobon J (2013): Evolutionary covariation in geometric morphometric data: analyzing integration, modularity, and allometry in a phylogenetic context. Syst Biol, 62, 591–610.
  25. Koçak S, Özaydin İ, Gündemir O (2024): Shape analysis of the carpal joint in healthy and septic arthritis in newborn calves. Anat Histol Embryol, 53, 1-6.
  26. König HE, Liebich HG (2013): Veterinary Anatomy of Domestic Mammals: Textbook and Colour Atlas, 6th Ed.; Schattauer Verlag. Stuttgard, Germany.
  27. Krasińska M, Szuma E, Kobryńczuk F, et al (2008): Morphometric variation of the skull during postnatal development in the Lowland European bison Bison bonasus bonasus. Acta Theriol, 53, 193–216.
  28. Marcus LF, Hingst-Zaher E, Zaher H (2000): Application of landmark morphometrics to skulls representing the orders of living mammals. Hystrix, 11, 27-47.
  29. Markland B, Donna C (1988): A Functional model for masticatory-related mandibular, dental, and craniofacial microevolutionary change derived from a selected Southeastern Indian skeletal temporal series. PhD thesis, University of Tennessee.
  30. Nanda AS, Nakao T (2003): Role of buffalo in the socioeconomic development of rural Asia: Current status and future prospectus. Anim Sci J, 74, 443-455.
  31. Özkan E, Günay E, Deveci E et al (2024): Geometric morphometric analysis of beak shape of Columbimorphae (Columbas, Van, Mardin and Dönek). Anat Histol Embryol, 53, 1-9.
  32. Özkan E, Sıddıq AB, Kahvecioğlu KO, et al (2019): Morphometric analysis of the skulls of domestic cattle (Bos taurus L.) and water buffalo (Bubalus bubalis L.) in Turkey. Turk J Vet Anim Sci, 43, 532-539
  33. Parés-Casanova PM (2015): Geometric morphometrics to the study of skull sexual dimorphism in a local domestic goat breed. J Fisheries Livest Prod, 3, 141.
  34. Parés-Casanova PM, Tolić A, Carnicero R (2020): Side differences in the skull of sheep: An assessment by geometric morphometrics. Annu Res Rev Biol, 34, 1.
  35. Robin O, Cornette R, Clavel B (2023): Distinguishing female, male and castrated sheep using linear metrics and geometric morphometrics: Application on an archaeological assemblage. J. Archaeol. Sci. Rep, 51, 104225.
  36. Rohlf FJ (2017): TpsSmall Version 1.34. Ecology & Evolution, SUNY at Stone Brook, USA.
  37. Rohlf FJ (2018): TpsDig Version 2.31. Ecology & Evolution, SUNY at Stone Brook, USA.
  38. Slice DE (2007): Geometric morphometrics. Annual Rev Anthropol, 36, 261-281.
  39. Soysal İ (2006): Buffalo and its products production. Tekirdağ University, Faculty of Agriculture, Department of Animal Science, Lecture Notes. Tekirdağ.
  40. Stankowich T, Caro T (2009): Evolution of weaponry in female bovids. Proc Royal Soc B: Biol Sci, 276, 4329–4334.
  41. Wang B, Zelditch M, Badgley C (2022): Geometric morphometrics of mandibles for dietary differentiation of Bovidae (Mammalia: Artiodactyla). Curr Zool, 68, 237–249.
  42. Yalcın H, Kaya MA, Arslan A (2010): Comparative geometrical morphometries on the mandibles of Anatolian wild sheep (Ovis gmelini anatolica) and Akkaraman sheep (Ovis aries). Kafkas Univ Vet Fak Derg, 16, 55-61.
  43. Yaprak A, Demiraslan Y, Özgel Ö (2022): Investigation of the skull basally in Honamlı, Hair, Kilis and Saanen goats using geometric morphometric methods. Harran Üniv Vet Fak Derg, 11, 179-184.
  44. Zelditch ML, Swiderski DL, Sheets HD (2004): Geometric Morphometrics for Biologists: A Primer. Academic Press, Amsterdam.