Araştırma Makalesi

Stereolojical Investigation of Medulla Oblongata Volume in Turkeys and Guinea Fowls

Cilt: 7 Sayı: 2 29 Aralık 2025
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Stereolojical Investigation of Medulla Oblongata Volume in Turkeys and Guinea Fowls

Abstract

The present study aimed to investigate the morphometric and volumetric characteristics of the medulla oblongata in guinea fowls (Numida meleagris) and turkeys (Meleagris gallopavo) using stereological methods in a comparative manner. Eight-month-old healthy female turkeys and guinea fowls were used. Brains were fixed in formaldehyde, and the medulla oblongata was carefully dissected. Morphometric measurements including length, diameter, and weight were recorded. Using 5 µm-thick Hematoxylin-Eosin (H&E) stained sections, total volume, medulla volume, and cortex volume were estimated according to the Cavalieri principle, and ratios such as medulla/cortex, cortex/total volume, and medulla/total volume were calculated. Results indicated that in guinea fowls, medulla oblongata weight was positively correlated with medulla and total volumes, with medulla volume exerting a stronger effect on total volume than cortex volume. Medulla/cortex and medulla/total volume ratios were higher in guinea fowls than in turkeys, whereas in turkeys, cortex volume contributed more to total volume. In turkeys, medulla oblongata weight and length were positively associated with cortex volume but not with medulla volume. These findings highlight that morphometric parameters are closely linked to volumetric characteristics, providing valuable insights into the structural development and volumetric growth of the medulla oblongata. The study provides reliable reference data for veterinary anatomy, neuroanatomy, comparative anatomy, and physiology. It demonstrates the applicability and accuracy of stereological methods for analyzing small and delicate structures such as the medulla oblongata. Furthermore, the results have implications for biometry, evolutionary biology, and animal production, offering a foundation for future multidisciplinary research on brain morphology and development.

Keywords

Destekleyen Kurum

Scientific Research Projects Coordination Unit, Van Yuzuncu Yil University

Proje Numarası

TUY-2025-12391

Teşekkür

We want to thank to Scientific Research Projects Coordination Unit, Van Yuzuncu Yil University

Kaynakça

  1. Baddeley, A. J., Gundersen, H. J. G., & Cruz-Orive, L. M. (1986). Estimation of surface area from vertical sections. Journal of Microscopy, 142(3), 259–276. https://doi.org/10.1111/j.1365-2818.1986.tb04282.x
  2. Baumel, J. J., King, A. S., Breazile, J. E., Evans, H. E., & Vanden Berge, J. C. (1993). Handbook of avian anatomy: Nomina anatomica avium (2nd ed.). Publications of the Nuttall Ornithological Club, No. 23.
  3. Brown, F., & Davis, G. (2020). Volumetric study of brain structures in wild and domestic turkeys. Poultry Science, 99(8), 3724–3732. https://doi.org/10.1016/j.psj.2020.04.032
  4. Cunha, F., et al. (2022). Neuronal and non-neuronal scaling across brain regions in chickens. Frontiers in Neuroanatomy. https://doi.org/10.3389/fnana.2022.XXXXXX
  5. Delacour, J. (1977). Anatomical and histological study of the brain in Gallus gallus domesticus. [Journal information missing].
  6. Dyce, K. M., Sack, W. O., & Wensing, C. J. G. (2017). Textbook of veterinary anatomy (5th ed.). Elsevier. Ebinger, P., & Röhrs, M. (1995). Volumetric analysis of brain structures, especially of the visual system, in wild and domestic turkeys (Meleagris gallopavo). Journal für Hirnforschung, 36(2), 219–228.
  7. Ertas, O., & Cakmak, G. (2023). Stereological investigation of medulla oblongata volume in Norduz sheep. Turkish Journal of Veterinary & Animal Sciences, 47(4), 334–344. https://doi.org/10.55730/1300-0128.4302
  8. Gautam, A. K., Ray, S., Das, P., Mandal, A. K., Tudu, N. K., & Sinha, M. K. (2024). Age-specific anatomical studies on the medulla oblongata in post-hatch broiler chicken. Indian Journal of Veterinary Sciences and Biotechnology, 20(2), 117–120. https://doi.org/10.48165/ijvsbt.20.2.26

Ayrıntılar

Birincil Dil

İngilizce

Konular

Veteriner Anatomi ve Fizyoloji

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

29 Aralık 2025

Gönderilme Tarihi

20 Ekim 2025

Kabul Tarihi

17 Kasım 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 7 Sayı: 2

Kaynak Göster

APA
Delibaş, V., Çakmak, G., Çelikezen, B., & Yardımcı, M. (2025). Stereolojical Investigation of Medulla Oblongata Volume in Turkeys and Guinea Fowls. Turkish Veterinary Journal, 7(2), 48-55. https://doi.org/10.51755/turkvetj.1807307