Histology of Esophagus of Black Bengal Goat

Islam, Soriful; Quasem, Md. Abul; Awal, MA; Das, SK

doi:10.3329/bjvm.v3i2.11398

Cited by 4 publications

(8 citation statements)

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“…This study compared the histological structure of esophagus between two ruminant species: the domestic goat and the European roe deer. While some previous studies have examined the morphology of the esophagus in goats (Ebraheem et al., 2018; Islam et al., 2005; Islam et al., 2008; Kumar et al., 2009), no such studies appear to have been performed in roe deer. Our present approach is more detailed than the four studies on goats given above: whereas Ebraheem et al.…”

Section: Discussionmentioning

confidence: 99%

“…(2008) focuses on anatomical localization of esophagus, whereas Islam et al. (2005) provide very short and superficial description of esophageal histology.…”

Section: Discussionmentioning

confidence: 99%

“…(2008) only measure the thickness of the whole esophageal wall, while Islam et al. (2005) only note the thickness of the main esophageal layers.…”

Section: Discussionmentioning

confidence: 99%

“…Studies comparing the histological structure of the esophagus between different animal species are not very numerous (Busch, 1980; Jamdar & Ema, 1982; Slocombe et al., 1982), and even fewer have been conducted on ruminants (Ebraheem et al., 2018; Islam et al., 2005; Islam et al., 2008; Kumar et al., 2009); therefore, most of the data regarding the esophageal histology of this suborder come from textbooks (Bacha & Bacha, 2006; Banks, 1993; König & Liebich, 2007; Kuryszko & Zarzycki, 2000; Samuelson, 2007). All treat ruminants as a single, homogeneous group of animals characterized by the same scheme of esophageal structure.…”

Section: Introductionmentioning

confidence: 99%

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New aspects of the esophageal histology of the domestic goat (Capra hircus) and European roe deer (Capreolus capreolus)

Sokołowska

Urbańska

Matusiak

et al. 2021

Veterinary Medicine & Sci

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The present study examines the esophageal wall of animals from two distinct families of the Ruminantia: domestic goats and European roe deer. Five fragments were collected from the entire length of the esophageal wall in five goats and four roe deer and subjected to microscopic and morphometric analyses. All layers of the esophageal wall except the tela submucosa were found to be thicker in the goats. In both species, the esophagus was lined by parakeratinized stratified squamous epithelium, and the tela submucosa was deprived of glands along its entire length. However, the structure of the lamina muscularis mucosae was better developed in goats: it was found to be discontinuous in the proximal part, and then became fused in the cervical part, that is around the most proximal quarter of its length. In contrast, in roe deer, the lamina muscularis mucosae began as sparse, thin muscle bundles at the pharyngeal‐esophageal junction, which thickened and clustered further down the esophagus, but did not fuse. Our findings regarding the microscopic structure of the ruminant esophagus are not fully consistent with the widely‐accepted view and suggest that the histological structure of the esophagus demonstrates interspecies variation within this large suborder. More precisely, species‐specific differences can be seen regarding the presence of esophageal glands and parakeratinized epithelium, and in the organization of the lamina muscularis mucosae.

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Section: Discussionmentioning

confidence: 99%

“…(2008) focuses on anatomical localization of esophagus, whereas Islam et al. (2005) provide very short and superficial description of esophageal histology.…”

Section: Discussionmentioning

confidence: 99%

“…(2008) only measure the thickness of the whole esophageal wall, while Islam et al. (2005) only note the thickness of the main esophageal layers.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New aspects of the esophageal histology of the domestic goat (Capra hircus) and European roe deer (Capreolus capreolus)

Sokołowska

Urbańska

Matusiak

et al. 2021

Veterinary Medicine & Sci

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show abstract

“…A total of 20 articles [64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83] have been published on histological research in goats but no such research reports could be traced on sheep in the available literature in Bangladesh (Table 2). Therefore, this observation could draw a notice for the histological scientists to contribute on the histological research in sheep in Bangladesh.…”

Section: Histological Researchmentioning

confidence: 99%

A systematic review of pre-clinical and clinical research reports on small ruminants published during the last six decades in the then East Pakistan and in Bangladesh

Samad¹

2019

JVMOHR

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Background: A dozen of veterinary academic institutions offer degree courses with pre-clinical and clinical studies and conduct research works but their activities are not coordinated and unified in Bangladesh. An attempt has been made to review the pre-clinical and clinical research reports in small ruminants which would help the concerned academicians, research scientists and research funded organizations to update their knowledge of specialization and use this reference as a starting point for formulation of the future academic and research guidelines. Objectives: The main objectives are to provide an integrated, systematic overview of all the available published research reports on the pre-clinical and clinical aspects of small ruminants to update knowledge and to identify research insights, existing gaps and future research directions. Materials and Methods: The available research reports on pre-clinical and clinical aspects of small ruminants published mainly in journals during the last six decades in Bangladesh from 1966 to 2019 were reviewed. Data obtained were analyzed statistically based on pre-clinical and clinical subjects, host species, age, breeds, clinical prevalence and decade-wise to assess the rate of publication. Results: Of the 665 selected articles, 621 research papers published on small ruminants during the last six decades from Bangladesh were systematically reviewed, of which 340 (54.75%) articles reported as pre-clinical and 281 (45.25%) on clinical aspects with significantly higher rates in goats (n = 486; 78.26%) than sheep (n = 135; 21.74%). Out of 126 recorded clinical diseases and disorders in small ruminants, 125 (99.21%) reported in goats and 44 (34.92%) in sheep, with 43 (34.13%) common in both goats and sheep but only pregnancy toxaemia (0.79%) reported in sheep. The influence of age and breeds on the prevalence of clinical diseases and disorders associated with their morbidity and mortality are described and discussed. Conclusions: This unified review article would serve as a guide for the veterinary medical academicians, research scientists and organizations for future studies and research directions. The disease profiles and their morbidity and mortality status in small ruminants might help the practicing veterinarians, government, human health care providers and neighboring countries who may need to take action.

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Histology and Ultrastructure of the Esophagus in European Beaver (Castor fiber) Displays Features Adapted to Seasonal Changes in Diet

Martyniuk

Ziółkowska

Hanuszewska-Dominiak

et al. 2023

Animals

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The European beaver is a herbivorous rodent whose diet changes seasonally, and in winter consists of large quantities of woody plants. It is distinguished among other mammals by a unique organization of the stomach that comprises the cardiogastric gland and by the unusual process of mucus formation in the gastric mucosa. The aim of study was to (i) characterize the structure of the beaver esophagus with particular attention to the mucosal epithelium; (ii) compare the histological structure of the esophagi collected in spring, summer, and winter; (iii) provide preliminary data on the structure of the esophagus in beaver fetuses. The study was conducted on esophagi of 18 adult beavers captured in Poland in April, August, and December, and on 3 fetal organs. The results obtained in adults show that the mucosa is lined with thick stratified squamous keratinized epithelium with a structure similar to that of the skin epidermis. Ultrastructural studies reveal the presence of multiple lamellar and non-lamellar bodies in granular cells, whose morphology and location gradually change while reaching the upper epithelial layers. The muscularis mucosa comprises a layer of longitudinally oriented bundles of smooth muscle cells. Both mucosa and submucosa do not comprise any glands. The thick muscularis externa consists mainly of internal circular and external longitudinal layers of striated muscle fibers. The keratinized layer of mucosa epithelium was 2-3-fold thicker in esophagi collected in winter than in those collected in spring and summer, while the epithelial cell layer thickness remained unchanged regardless of the season. Immunolabeling for proliferating cell nuclear antigen shows a higher index of epithelium proliferation in esophagi collected in winter than in spring and summer. No seasonal differences were noted in other layers of the esophagus. Fetal organs have epithelium covered with a keratinized layer, thinner than in adults, and the muscularis externa comprises both striated and smooth muscle cells.

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Histology of Esophagus of Black Bengal Goat

Cited by 4 publications

References 0 publications

New aspects of the esophageal histology of the domestic goat (Capra hircus) and European roe deer (Capreolus capreolus)

New aspects of the esophageal histology of the domestic goat (Capra hircus) and European roe deer (Capreolus capreolus)

A systematic review of pre-clinical and clinical research reports on small ruminants published during the last six decades in the then East Pakistan and in Bangladesh

Histology and Ultrastructure of the Esophagus in European Beaver (Castor fiber) Displays Features Adapted to Seasonal Changes in Diet

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