Histomorphological and Histochemical Study of the Healthy Liver and Pancreas of Local Adult Homing Pigeon (Columba Livia Domestica) Kadhim Khalid H.1,*, Sadiq Dina H.2, Hussein Diyar M.1 1Dep. of Anat. and Hist., Coll.of Vet..Med, AL-Muthanna University, Iraq 2Dep. of Anatomy, College of Nursing, University Al-Basra, Iraq *Corresponding Author: Khalid Hadi Kadhim, Dep. of Anat. and Hist., Coll.of Vet..Med., AL-Muthanna University, Iraq, Email: dr.kh2017@gmail.com
Online published on 4 June, 2019. Abstract The purpose of this study was to describe, some the grossly and histological structures and histochemical features of the liver and pancreas of local adult homing pigeon. The present study was conducted on 20 local adult homing pigeon divided into two groups (10 for morphological study and 10 for histological and histochemical study). The morphological results showed that the liver located in the right and left hepatoperitoneal cavity, it has red-brown to dark brown in color, the weight of the liver was (1.59 ± 0.21%) in relation with the body weight. The liver is divided into two undivided lobes left and right, the right lobe is larger than left lobe, mean length, weight and thickness of wall of left and right lobes were (32.1 ± 0.41mm), (22.6 ± 0.23 gm). and (3.5 ± 0.02 mm); (43.7 ± 0.25 mm), (46.6 ± 0.16 gm), (4.2 ± 0.03 mm) respectively. the pancreas was long gland, is on the lower right side of the abdominal wall between the arms of the duodenum. The mean length and weight of pancreas was (97.5 ± 2.20 mm), (3.12 ± 0.26 gm) respectively. Histological examination revealed that the liver consist of several lobules separated from each other by thin trabeculae of connective tissue extend from delicate capsule that enclosed the liver. The basic unit of the parenchyma of liver is hepatocyte which arranged in plates or cords like that radiated around the central vein and between these cords there is sinusoids lined by a layer of fenestrated endothelial cells and Kupffer's cells. In the boundary of each lobule showed portal area which consist of hepatic artery; hepatic vein and bile duct lining by cuboidal cells. The mean thickness of capsule, diameter of central vein, portal vein, hepatic artery and hepatic duct were (145 ± 12.6, 624 ± 32.4, 523 ± 90.0, 190 ± 20.4 and 325 ± 12.1 μm) respectively. The pancreas was serous tubuloacinar gland which covered by a thin connective tissue capsule consisted of collagenous, elastic and reticular fibers. The mean it thickness was (47 ± 2.2) μm. The parenchyma was consisted of exocrine portion and pancreatic islands. The pancreatic islands were composed of large Alpha and small Beta islets. The duct system composed of intercalated duct, intralobular duct, interlobular duct and main excretory duct. The histochemical study the hepatic cells were positive to periodic acid Schiff stain. The pancreatic islands were composed of large Alpha and small Beta islets. Top Keywords Homing pigeon, liver, pancreas, Histochemical, Histological. Top |