Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus)
Objective: Certain advantages of donkeys are still not listed as for other equine species. Moreover, donkeys lack comprehensive scientific studies. The present study examines the histological architecture and histochemical characteristics of the esophagus in the Iraqi local breed donkey (Equus asinu...
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| Format: | Article |
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Network for the Veterinarians of Bangladesh
2023-03-01
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| Series: | Journal of Advanced Veterinary and Animal Research |
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| Online Access: | http://www.ejmanager.com/fulltextpdf.php?mno=75419 |
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| author | Dhyaa A. Abood Mohammed Sulaiman Dawood Lamees Ezldeen Mohammed Abdulkarim Jafar Karim |
| author_facet | Dhyaa A. Abood Mohammed Sulaiman Dawood Lamees Ezldeen Mohammed Abdulkarim Jafar Karim |
| author_sort | Dhyaa A. Abood |
| collection | DOAJ |
| description | Objective: Certain advantages of donkeys are still not listed as for other equine species. Moreover, donkeys lack comprehensive scientific studies. The present study examines the histological architecture and histochemical characteristics of the esophagus in the Iraqi local breed donkey (Equus asinus).
Materials and Methods: Eight esophagus samples were collected from a local breed donkey. Tissue specimens (~1 cm³) were collected from the cervical, thoracic, and abdominal regions of the esoph¬agus and processed via routine histological technique. The tissue sections were stained with hema¬toxylin and eosin, Massons Trichrome, and combined Alcian blue (pH 2.5) plus PAS (AB-PAS).
Results: The esophagus of the local breed donkey had folded mucosa wrapped by thin non-ke¬ratinized stratified squamous epithelium. The heights of epithelia of the cervical and thoracic regions of the esophagus were significantly higher than that of the abdominal regions. The lamina propria consisted of dense fibrous tissue that appeared thickest in the thoracic and abdominal regions of the esophagus. The muscularis mucosa disappears at the cervical region, while the thoracic and abdominal regions of the esophagus contain thick, scattered, interrupted bundles of smooth muscle fibers. Tunica submucosa was very thick at the thoracic and abdominal regions of the esophagus, composed of loose connective tissue filled with compound tubular mucose¬rous esophageal glands. Using a combined AB-PAS stain, mucous alveoli within the esophageal glands indicated strong acidic mucopolysaccharide. Tunica muscularis of the cervical and thoracic regions was built up by striated muscle fibers and turned into smooth type at the abdominal region of the esophagus.
Conclusion: The esophagus of the local breed donkey shows considerable histological similarities with the other mammals that make this species reliable as an experimental model of digestive tissue. [J Adv Vet Anim Res 2023; 10(1.000): 14-20] |
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| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2311-7710 |
| language | English |
| last_indexed | 2024-04-09T18:34:30Z |
| publishDate | 2023-03-01 |
| publisher | Network for the Veterinarians of Bangladesh |
| record_format | Article |
| series | Journal of Advanced Veterinary and Animal Research |
| spelling | doaj.art-b097e487f7b044fcad07e5d65e5f516e2023-04-11T15:18:11ZengNetwork for the Veterinarians of BangladeshJournal of Advanced Veterinary and Animal Research2311-77102023-03-01101142010.5455/javar.2023.j64775419Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus)Dhyaa A. Abood0Mohammed Sulaiman Dawood1Lamees Ezldeen Mohammed2Abdulkarim Jafar Karim3Department of Anatomy & Histology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq Department of Anatomy & Histology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq Department of Anatomy & Histology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq Department of Pathology & Poultry Diseases, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.Objective: Certain advantages of donkeys are still not listed as for other equine species. Moreover, donkeys lack comprehensive scientific studies. The present study examines the histological architecture and histochemical characteristics of the esophagus in the Iraqi local breed donkey (Equus asinus). Materials and Methods: Eight esophagus samples were collected from a local breed donkey. Tissue specimens (~1 cm³) were collected from the cervical, thoracic, and abdominal regions of the esoph¬agus and processed via routine histological technique. The tissue sections were stained with hema¬toxylin and eosin, Massons Trichrome, and combined Alcian blue (pH 2.5) plus PAS (AB-PAS). Results: The esophagus of the local breed donkey had folded mucosa wrapped by thin non-ke¬ratinized stratified squamous epithelium. The heights of epithelia of the cervical and thoracic regions of the esophagus were significantly higher than that of the abdominal regions. The lamina propria consisted of dense fibrous tissue that appeared thickest in the thoracic and abdominal regions of the esophagus. The muscularis mucosa disappears at the cervical region, while the thoracic and abdominal regions of the esophagus contain thick, scattered, interrupted bundles of smooth muscle fibers. Tunica submucosa was very thick at the thoracic and abdominal regions of the esophagus, composed of loose connective tissue filled with compound tubular mucose¬rous esophageal glands. Using a combined AB-PAS stain, mucous alveoli within the esophageal glands indicated strong acidic mucopolysaccharide. Tunica muscularis of the cervical and thoracic regions was built up by striated muscle fibers and turned into smooth type at the abdominal region of the esophagus. Conclusion: The esophagus of the local breed donkey shows considerable histological similarities with the other mammals that make this species reliable as an experimental model of digestive tissue. [J Adv Vet Anim Res 2023; 10(1.000): 14-20]http://www.ejmanager.com/fulltextpdf.php?mno=75419donkey; histochemical; histological |
| spellingShingle | Dhyaa A. Abood Mohammed Sulaiman Dawood Lamees Ezldeen Mohammed Abdulkarim Jafar Karim Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus) Journal of Advanced Veterinary and Animal Research donkey; histochemical; histological |
| title | Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus) |
| title_full | Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus) |
| title_fullStr | Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus) |
| title_full_unstemmed | Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus) |
| title_short | Histological and histochemical characteristics of the esophagus in local breed donkey (Equus asinus) |
| title_sort | histological and histochemical characteristics of the esophagus in local breed donkey equus asinus |
| topic | donkey; histochemical; histological |
| url | http://www.ejmanager.com/fulltextpdf.php?mno=75419 |
| work_keys_str_mv | AT dhyaaaabood histologicalandhistochemicalcharacteristicsoftheesophagusinlocalbreeddonkeyequusasinus AT mohammedsulaimandawood histologicalandhistochemicalcharacteristicsoftheesophagusinlocalbreeddonkeyequusasinus AT lameesezldeenmohammed histologicalandhistochemicalcharacteristicsoftheesophagusinlocalbreeddonkeyequusasinus AT abdulkarimjafarkarim histologicalandhistochemicalcharacteristicsoftheesophagusinlocalbreeddonkeyequusasinus |