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Volumetric study on sheep brain using stereology technique
Javad Sadeghinezhad1, Mohamad Ebrahimi1, Mehdi Heydari Lehi1
1Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Anatomia, Histologia, Embryologia
|June 11, 2024
Summary
This study quantified sheep brain volumes using stereology, providing essential data for comparative neuroanatomy. These findings enhance understanding of ovine brain structure for veterinary research.
Area of Science:
- Neuroscience
- Veterinary Anatomy
- Stereology
Background:
- Three-dimensional morphometric data offer superior insights into brain structure and function.
- Accurate volumetric data are crucial for comparative neuroanatomy and experimental research.
Purpose of the Study:
- To estimate the volumes of cerebral structures in sheep using design-based stereology.
- To establish baseline morphometric data for the ovine brain.
Main Methods:
- Design-based stereology with Cavalieri's estimator and point counting.
- Formalin fixation, agar embedding, and Mulligan's staining of sheep brains.
- Photographic recording and volumetric analysis of brain slices.
Main Results:
- Total sheep brain volume averaged 70604.8 mm³.
- Grey matter constituted 42.55% and white matter 24.23% of total brain volume.
- Specific structures like the caudate nucleus (2.39%), claustrum (1.01%), corpus callosum (1.24%), internal capsule (3.63%), and external capsule (0.70%) were quantified.
Conclusions:
- This study provides precise volumetric data for key ovine cerebral structures.
- The findings contribute to veterinary comparative neuroanatomy and support future experimental studies.
