Morphometrical and Histochemical study of glandular stomach (Proventriculus) in local domestic male ducks (Anase Platyrhchos)
AbstractPresent study intended to explore the morphometric and histochemical foundations of the wall of proventriculus in adult domestic male ducks. To achieve this study, six healthy adult ducks were purchased from local vendors at Mosul province. All of the birds were sedated and their stomachs were removed after they were dissected to achieve the gross description and measurements of proventriculus which include the length and diameter of (cranial, middle and caudal ) regions of the proventriculus. Small tissue pieces 6-8 mm length from three regions of proventriculus were processed for histomorphological studies by using Hematoxyline and Eosin stain,, combined (PAS-ABph2.5 ) stain, Toluidine blue and Masson's Trichrome stains. The finding showed that the proventriculus connects with esophagus from cranial side and with muscular stomach from caudal side, it was thin elongated oval tubular organ.
Histologically, the mucosa of proventriculus revealed presence of folds and sulci like structures which covered by simple columnar epithelium, tunica submucosa consist of many and large of simple and profound sub-mucosal glands that were supported by connective tissue septa and extended from the base of the branched tubular gland through the lamina propria, which was organized in a conical manner ( adenomere ). Tunica Muscularis appeared as double layer coordinated in form of inner longitudinal one and outer circular one. Finally the serosa consists of connective tissue, blood vessels, adipose tissue and nerve plexuses covered by mesothelium.
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