Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch
The histogenesis of the primordial oesophagus was studied to determine the period in which the tunics of the oesophagus developed and became functional in the helmeted guinea fowl (Numida meleagris). Eighteen embryos and nine keets were studied at prehatch and posthatch, respectively. Simple columna...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Scientifica |
| Online Access: | http://dx.doi.org/10.1155/2016/9827956 |
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| author | Innocent Jonah Gosomji Sulaiman Olawoye Salami James Oliver Nzalak Muhammed Umar Kawu Emmanuel Vandi Tizhe Yilzem George Gurumyen Edward Christopher Dung |
| author_facet | Innocent Jonah Gosomji Sulaiman Olawoye Salami James Oliver Nzalak Muhammed Umar Kawu Emmanuel Vandi Tizhe Yilzem George Gurumyen Edward Christopher Dung |
| author_sort | Innocent Jonah Gosomji |
| collection | DOAJ |
| description | The histogenesis of the primordial oesophagus was studied to determine the period in which the tunics of the oesophagus developed and became functional in the helmeted guinea fowl (Numida meleagris). Eighteen embryos and nine keets were studied at prehatch and posthatch, respectively. Simple columnar epithelium surrounded by mesenchymal cells was obvious at the 8th day of embryonic development. By the 19th day of embryonic development, the four tunics, tunica mucosa, submucosa, tunica muscularis, and tunica adventitia/serosa, were beginning to differentiate from the mesenchymal cells and also the primordial oesophageal glands appeared as clusters of cells that invaginate from the epithelium. By the 27th day, the tunics were clearly differentiated and the primordial glands were fully developed as evident with positive reaction to Periodic Acid Schiff (PAS). The tunics of the muscularis were not well developed till at posthatch. This study therefore concludes that the primordial oesophagus is active at the late incubation due to mucin secretion by mucous glands but fully functional at posthatch since the tunica muscularis is completely developed at posthatch. |
| format | Article |
| id | doaj-art-20bf196e9a96469281a45a707a6398cd |
| institution | Kabale University |
| issn | 2090-908X |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Scientifica |
| spelling | doaj-art-20bf196e9a96469281a45a707a6398cd2025-02-03T06:13:49ZengWileyScientifica2090-908X2016-01-01201610.1155/2016/98279569827956Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and PosthatchInnocent Jonah Gosomji0Sulaiman Olawoye Salami1James Oliver Nzalak2Muhammed Umar Kawu3Emmanuel Vandi Tizhe4Yilzem George Gurumyen5Edward Christopher Dung6Department of Veterinary Anatomy, University of Jos, Plateau State, NigeriaDepartment of Veterinary Anatomy, University of Ilorin, Kwara State, NigeriaDepartment of Veterinary Anatomy, Ahmadu Bello University, Zaria, Kaduna State, NigeriaDepartment of Veterinary Physiology, Ahmadu Bello University, Zaria, Kaduna State, NigeriaDepartment of Veterinary Microbiology and Pathology, University of Jos, Plateau State, NigeriaDepartment of Veterinary Microbiology and Pathology, University of Jos, Plateau State, NigeriaDepartment of Veterinary Physiology, University of Jos, Plateau State, NigeriaThe histogenesis of the primordial oesophagus was studied to determine the period in which the tunics of the oesophagus developed and became functional in the helmeted guinea fowl (Numida meleagris). Eighteen embryos and nine keets were studied at prehatch and posthatch, respectively. Simple columnar epithelium surrounded by mesenchymal cells was obvious at the 8th day of embryonic development. By the 19th day of embryonic development, the four tunics, tunica mucosa, submucosa, tunica muscularis, and tunica adventitia/serosa, were beginning to differentiate from the mesenchymal cells and also the primordial oesophageal glands appeared as clusters of cells that invaginate from the epithelium. By the 27th day, the tunics were clearly differentiated and the primordial glands were fully developed as evident with positive reaction to Periodic Acid Schiff (PAS). The tunics of the muscularis were not well developed till at posthatch. This study therefore concludes that the primordial oesophagus is active at the late incubation due to mucin secretion by mucous glands but fully functional at posthatch since the tunica muscularis is completely developed at posthatch.http://dx.doi.org/10.1155/2016/9827956 |
| spellingShingle | Innocent Jonah Gosomji Sulaiman Olawoye Salami James Oliver Nzalak Muhammed Umar Kawu Emmanuel Vandi Tizhe Yilzem George Gurumyen Edward Christopher Dung Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch Scientifica |
| title | Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch |
| title_full | Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch |
| title_fullStr | Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch |
| title_full_unstemmed | Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch |
| title_short | Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch |
| title_sort | histogenesis of the oesophagus of guinea fowl numida meleagris at prehatch and posthatch |
| url | http://dx.doi.org/10.1155/2016/9827956 |
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