A COMPARATIVE MICROMETRY AND HISTOCHEMICAL STUDY ON THE OVIDUCT OF WHITE LEG HORN AND RHODE ISLAND RED CHICKEN

The present work was conducted on oviduct of 20 weeks old White leg horn (WLH) and Rhode Island Red (RIR) chickens to observe and compare the micrometrical variation and histochemical reaction of the oviduct segments between WLH and RIR breeds of chickens.The micrometrical observation revealed that there were better developments of mean thickness of tunica mucosa and epithelial surface height of different parts oviduct in WLH than RIR chickens. In both the breeds the thickness of the tunica mucosa gradually increased from infundibulum to vagina but the tunica mucosa of isthmus was thicker than that of uterus where as the epithelial height was more in vagina and less in infundibulum. Finding of more glycogen content by best carmine staining and the PAS activity for neutral mucopolysaccharide in various segments of WLH's oviduct suggested better mitochondrial activity and functional ability for egg production in WLH in comparison to RIR chickens.