GROSS, HISTOMORPHOLOGICAL AND HISTOCHEMICAL STUDIES ON PECTEN OCULI OF GUINEA FOWL (Numida meleagris)
| dc.contributor.advisor | Dr. Balwant Meshram | |
| dc.contributor.author | Pratiksha Mishra | |
| dc.date.accessioned | 2018-06-08T05:17:43Z | |
| dc.date.available | 2018-06-08T05:17:43Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | Pecten Oculi of Gunia fowl (Numida meleagris) was studied for its gross, histological, histochemical and transmission electron microscopical (TEM) observations. A total of 18 eyes were studied which were collected from the identified meat shop located in the vicinity of City of Udaipur. The study revealed that dark black velvety pecten oculi has 13 to 17 number of accordion (pectineal) folds which initiated from cauda of optic nerve and travelled via fundus distally into the vitreous humour as an undulated natured pathway as snake. Macroscopically the shape of pecten oculi was not different than sail board. In gross study maximum average length and height of pecten oculi found 3.378 ± 0.061 mm and 5.913 ± 0.074 mm respectively. Histomorphologically the pecten oculi showed an organization as the festoon of blood capillaries with their elastic, collagen and reticular fibers which correspond with the structure of spring diving board. Its working principle is also getting matched with Hook’s law, how the diving spring board works. Melanocytes, melanosomes and melanin granules were observed in and around blood capillaries of pectin oculi. The highest concentration of melanin was observed in the apex. Histochemically the pecten oculi was shown very weak activity of acid phosphatase and alkaline phosphatase. It has shown a strong activity of glycogen at optic nerve and collagen fibers of pectineal capillaries. Ultrastructurally, the nucleated erythrocytes were witnessed at luminal area of pectineal blood capillary and the endothelium was elaborating tight intercellular junction. The primary and secondary lamellae were observed in the luminal region of pectineal capillary wherein pigment 84 depositing globules were discovered. Pecten oculi of Guinea fowl (Numida meleagris) performed various functions which were well established and also it identified as the organ of hemostatic function, support system to retina to get visual acuity, phagocytic, immunity, the source of energy for vitreous humour by way of diffusion. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810049987 | |
| dc.language.iso | en | en_US |
| dc.publisher | Rajasthan University of Veterinary and Animal Sciences, Bikaner | en_US |
| dc.sub | Veterinary Anatomy and Histology | en_US |
| dc.subject | null | en_US |
| dc.theme | GROSS, HISTOMORPHOLOGICAL AND HISTOCHEMICAL STUDIES ON PECTEN OCULI OF GUINEA FOWL (Numida meleagris) | en_US |
| dc.these.type | M.V.Sc. | en_US |
| dc.title | GROSS, HISTOMORPHOLOGICAL AND HISTOCHEMICAL STUDIES ON PECTEN OCULI OF GUINEA FOWL (Numida meleagris) | en_US |
| dc.type | Thesis | en_US |