Morphology ,Histology and Histochemical comparative study of the Liver in adult female domestic fowl(Gallus Gallus ), common moorhen(Gallinula chloropus )in South Iraq

Abstract

The aim of this study was determined compared between morphological features and histological structures in the liver of two species of birds that differ in their classification and food habitat by using light microscope.This birds were domestic fowl (Gallus Gallus ),  common moorhen(Gallinula chloropus ).Twenty birds were used to conduct the current study. These birds were collected from common markets at Basrah province. Themorphologicalresultshowed the liverin both species  was large and bilobed organ.It was consist of two parts (right lobe was larger thenleft lobe).the left lobe issubdivided into two parts .The histological structure of the organ consist of several lobules separated from each other by tiny trabeculae of connective tissue and was covered by connective tissue capsule.The liver tissue composed of hepatic cells and  blood sinusoidsin  two species of birds.Thebasic unit of liver is hepatocyte which arranged in plates that radiated around the central vein and between these cords there is sinusoids lined by alayer of fenestrated endothelial cells and Kupffer's cells. The histochemical result revealed  that the hepatocyte in the two species of birds were weakly positive to periodic acid Schiff (PAS) while they were positive to bromophenol blue reaction(MBB).