Stereological Study of the Esophageal Tissue Structure in Male and Female Bakhtiari Goat
Volume 4, Issue 1, Summer 2013, Pages 71-76
https://doi.org/10.52547/JCT.4.1.71
Abstract Aim: The aim of this study was to evaluate histometrical and stereological properties of the different tissue layers in male and female goats.
Material and Methods: To study the microscopic structure of the goat esophagus by stereological method, the eight healthy adult goats from both sexes were selected and the cervical region was dissected and esophagus removed. The obtained samples were fixed in 10% buffered formalin solution and then prepared tissue sections, stained with hematoxylin and eosin and studied using light microscopy.
Results: Results showed that there are significant variation in micrometry thicknesses of the submucosal and muscular layer at the cervical and thoracic regions (p < /em><0.05). The stereological results showed that mean volume of the esophageal muscular layer was significantly greater in male than female, but in other layers significant differences between both sexes was not observed (p < /em>>0.05).
Conclusion: Although morphometrical results showed that there are significant variations in different layers of the esophagus tissue, but stereological results showed no significant difference.
Distribution Pattern of the Paneth Cells in Different Regions of the Small Intestine of Sheep and Goat at Light and Electron Microscopic Levels
Volume 3, Issue 3, Winter 2012, Pages 231-236
https://doi.org/10.52547/JCT.3.3.231
Abstract Aim: The aim of the present study was to compare quantitative distribution and histological characteristics of Paneth cells of small intestine in sheep and goats.
Material and Methods: Ten healthy adult sheep and 10 healthy adult goats (5 male and 5 female in both sexes) of the Lori Bakhtyari breed were selected from Shahrekord abattoir. Prepared tissue sections were analyzed at both light and electron microscopic levels.
Results: Paneth cells were distributed in the crypts of Liberkühn, theirs granules were larger and more numerous in deep and cells number showed an increase the proximal of the deudenum towards the distal part of the jujenum followed by a decrease from the proximal of the ileum towards its distal part. In all regions, Paneth cells were more numerous in goats than to sheep. In electron microscopic level, dense granules were found in the apical cytoplasm. Numerical density and surface microvilli of granules were greatest in the jejunum and lowest in duodenum and ileum. In all three regions of jejenum, area of cytoplasmic granules was significantly greater in sheep than in goats.
Conclusion: The result showed that paneth cellular structure is almost similar between two species in light and electron microscope levels.