Histomorphology of the Stomach, Proventriculus and Ventriculus of the Red Jungle Fowl

Abstract

The cranial chamber (proventriculus) and caudal chamber (ventriculus) of the stomach of the Red jungle fowl (Gallus gallus spadiceus) were examined by means of light microscopy. Both chambers presented folds of the tunica mucosa lined by a simple prismatic epithelium that was positive for neutral mucin. Simple tubular glands occupied the lamina propria of both chambers; in the ventriculus of older birds, they showed a coiled base. These ventricular glands were lined by simple cuboidal cells represented by the chief cells and a few large basal cells. The luminal and tubular koilin rodlets and folds of the ventriculus were positive to periodic acid Schiff (PAS) stain. The proventricular glands were situated between the inner and outer layers of the lamina muscularis mucosae. Cells lining the tubulo-alveolar units of the proventricular glands showed a dentate appearance. Vacuoles were not observed, and the cells were negative for Alcian-PAS stain. The tunica submucosa was very thin in the proventricular wall. In the ventriculus, it was not separated from the lamina propria owing to the absence of any lamina muscularis mucosae. The tunica muscularis of the proventriculus was formed by a thick inner layer of circular smooth muscle fibres and a thin outer layer of longitudinal fibres. In addition to these layers, oblique muscle fibres formed the most internal layer of the tunica muscularis in the ventriculus.

Morphology of the proventriculus of African ostrich

“…The adventitia was serosa, and was composed of epithelial cells and connective tissue (Fig.1B). The morphological characteristics of the proventriculus have been studied in different animals (Fang, 2005;He, 2002;Sun, 2012;Shen, 2000;Kadhim, 2011;Li, 2006;Zhang et al, 2016 ). The findings of the present study indicate that the muscularis mucosae of proventriculus in the African ostrich was clearly observed, it was the same with Cygnus.…”

“…It can be concluded that animals with The simple tubular glands of the African ostrich are located in the lamina propria, while the compound tubular glands are located in the submucosa. However, Kadhim (2011) revealed that the simple tubular glands of the Red jungle fowl (Gallus gallus spadiceus) occupied the lamina propria, while the compound tubular glands were situated between the inner and outer layers of the lamina muscularis mucosae, previous studies also have shown that the compound tubular glands of Pavo muticus (He, 2002), Balearica. pavonina(shen, 2000), Cygnus cygnus (Sun, 2012), Rhinolophus ferrumequinum and Phasianus colchicus (Li, 2006) are located deep in the lamina propria.…”

“…The organ secretes mucus, gastric acid and pepsin. So for many years, scholars have studied the morphology of the proventriculus in different animals (Fang, 2005;He, 2002;Sun, 2012;Shen, 2000;Kadhim, 2011;Li, 2006;Zhang et al, 2016), the researches showed that the morphological characteristics of different animals were different. While on the ostriches, studies mainly focused on its gross anatomy and gland cells (Xu, 2005;Chen, 2013;Duritis et al, 2013;Streicher, 1985).…”

Gastric Duplication: Proventricular Cystic Choristoma on the Spleen of a Broiler Chicken

“…Microscopic examination of the cystic structure in the present case did not reveal any parasitic cyst or neoplastic growths; showing that our presumptive diagnosis of cystic tumor or parasitic cyst was incorrect. Histologic identification of the mucosal lining of the cystic structure showed identical findings to the histologic description of proventriculus in a previous study (8). Gastric duplication may be tubular or cystic, with the cystic form seen in this case being more frequent (7).…”

Histological Study of the Oesophagus and Stomach in Grey-Backed Shrike (Lanius tephronotus)

“…A large body of knowledge the morphology of the alimentary tract in birds has been conducted on many big type birds, especially on fowl (Martínez et al, 2000;Rossi et al, 2005;Selvan et al, 2008;Ma, 2009;Kadhim et al, 2011), but no studies were reported on the morphology of the digestive tract of birds in the family Laniidae. Grey-backed shrike (Lanius tephronotus) is a middle-sized bird frequently seen in East Asia (Mackinnon & Phillipps, 2000).…”