@article{article_325775, title={Histomorphological Structure of Pecten Oculi in Pigeons (Columbidae columbiformes)}, journal={Harran University Journal of the Faculty of Veterinary Medicine}, volume={6}, pages={90–94}, year={2017}, DOI={10.31196/huvfd.325775}, author={Korkmaz, Deniz}, keywords={Vessel,Pigeon,Histomorphology,Melanocyte,Pecten oculi}, abstract={ It is aimed to research the histomorphological structure of pecten oculi in pigeons and to suggest the differences between other types of avian. Tissue samples from healthy eyes obtained from two pigeons came to the animal hospital were used. Tissue samples were fixed in 10% neutral-buffered formalin solution for 24 hours. After fixation samples were treated routine procedure and blocked. Serial sections were taken from the blocked. Those sections were examined under the microscope after stained with by Crossman’s triple stain. The pecten oculi projects from the optic nerve head into the vitreous chamber. Differently, it was seen that retina in pigeons was not completely separate from pecten base and ganglion cell layer were continued for a bit more. There were vessels with wide diameters on the basal part where pecten was located. This vessel was found to have originated from choroid. It was also seen that vessel diameters got smaller as it went to the apical from the basal. So, the vessels were classified as primer, secondary, and tertiary vessel. Diameters of 20 randomly chosen vessels from each sections were measured and an average diameter value was found. There was also a little amount of melanocyte in the basal part of the pecten. These melanocytes were based on the laminated vasculosa of the choroid. Pecten oculi were covered pecteneal membrane. Besides pecteneal hyalocytes were found in the pecteneal limiting membrane. According to the findings of the study, it was first proven to have originated from choroid that pigeon’s veins and melanocytes at the pecten oculi. }, number={1}, publisher={Harran University}