The present study was planned to study the trichodinosis in the farmed freshwater fish Oreochromis niloticus and investigate the histopathological alterations on the skin and gills. The diseased fish had signs of irritation in the form of erratic swimming, swimming near borders, scratching against hard objects, detached scales, excessive and turbid mucus and ulcerations; and signs of asphyxia in the form of rapid operculum movement, surfacing and piping or gasping. Histopathological examination using light microscopy on the skin of O. niloticus with moderate trichodinosis infection revealed detachment of the epidermis and disarrangement of the collagen bundles in dermis. Heavy infections caused sloughing of the epidermis and the remaining dermis had disarranged collagen bundles and was infiltrated with melanin- carrying cells, forming a thick dark band. Scanning electron micrographs of infected skin surface showed cracked and irregular thickness of squamous epithelium at the whole surface with erosions and marked ulcerations. Histopathological examination using light microscopy on gills of O. niloticus with moderate trichodinosis infection revealed erosions in the epithelial lining cells of the secondary lamellae, causing thinning of their peripheral portions. Heavy infections caused hyperplasia and an intense lamellar epithelial lifting. Scanning electron micrographs of gill arches showed the gill filaments with irregular thickness at their whole lengths. Moreover, filamentary and lamellar surfaces were cracked, spotted and had small notches due to the crawling movement of the Trichodina parasites.
| Published in |
American Journal of Life Sciences (Volume 3, Issue 6-1)
This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research |
| DOI | 10.11648/j.ajls.s.2015030601.15 |
| Page(s) | 30-37 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Trichodinosis, Trichodina sp., O. niloticus, Histopathology, SEM, Skin and Gills
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APA Style
Mohamed Arafa Adly, Mohamed Abdelaziz Ahmed Abd El-Galil, Fayza M. Soliman, Fatma El Zahraa A. A. Ahmed. (2015). Histopathological Studies on Trichodinosis of Farmed Oreochromis niloticus. American Journal of Life Sciences, 3(6-1), 30-37. https://doi.org/10.11648/j.ajls.s.2015030601.15
ACS Style
Mohamed Arafa Adly; Mohamed Abdelaziz Ahmed Abd El-Galil; Fayza M. Soliman; Fatma El Zahraa A. A. Ahmed. Histopathological Studies on Trichodinosis of Farmed Oreochromis niloticus. Am. J. Life Sci. 2015, 3(6-1), 30-37. doi: 10.11648/j.ajls.s.2015030601.15
AMA Style
Mohamed Arafa Adly, Mohamed Abdelaziz Ahmed Abd El-Galil, Fayza M. Soliman, Fatma El Zahraa A. A. Ahmed. Histopathological Studies on Trichodinosis of Farmed Oreochromis niloticus. Am J Life Sci. 2015;3(6-1):30-37. doi: 10.11648/j.ajls.s.2015030601.15
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Download@article{10.11648/j.ajls.s.2015030601.15,
author = {Mohamed Arafa Adly and Mohamed Abdelaziz Ahmed Abd El-Galil and Fayza M. Soliman and Fatma El Zahraa A. A. Ahmed},
title = {Histopathological Studies on Trichodinosis of Farmed Oreochromis niloticus},
journal = {American Journal of Life Sciences},
volume = {3},
number = {6-1},
pages = {30-37},
doi = {10.11648/j.ajls.s.2015030601.15},
url = {https://doi.org/10.11648/j.ajls.s.2015030601.15},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.s.2015030601.15},
abstract = {The present study was planned to study the trichodinosis in the farmed freshwater fish Oreochromis niloticus and investigate the histopathological alterations on the skin and gills. The diseased fish had signs of irritation in the form of erratic swimming, swimming near borders, scratching against hard objects, detached scales, excessive and turbid mucus and ulcerations; and signs of asphyxia in the form of rapid operculum movement, surfacing and piping or gasping. Histopathological examination using light microscopy on the skin of O. niloticus with moderate trichodinosis infection revealed detachment of the epidermis and disarrangement of the collagen bundles in dermis. Heavy infections caused sloughing of the epidermis and the remaining dermis had disarranged collagen bundles and was infiltrated with melanin- carrying cells, forming a thick dark band. Scanning electron micrographs of infected skin surface showed cracked and irregular thickness of squamous epithelium at the whole surface with erosions and marked ulcerations. Histopathological examination using light microscopy on gills of O. niloticus with moderate trichodinosis infection revealed erosions in the epithelial lining cells of the secondary lamellae, causing thinning of their peripheral portions. Heavy infections caused hyperplasia and an intense lamellar epithelial lifting. Scanning electron micrographs of gill arches showed the gill filaments with irregular thickness at their whole lengths. Moreover, filamentary and lamellar surfaces were cracked, spotted and had small notches due to the crawling movement of the Trichodina parasites.},
year = {2015}
}
TY - JOUR T1 - Histopathological Studies on Trichodinosis of Farmed Oreochromis niloticus AU - Mohamed Arafa Adly AU - Mohamed Abdelaziz Ahmed Abd El-Galil AU - Fayza M. Soliman AU - Fatma El Zahraa A. A. Ahmed Y1 - 2015/11/29 PY - 2015 N1 - https://doi.org/10.11648/j.ajls.s.2015030601.15 DO - 10.11648/j.ajls.s.2015030601.15 T2 - American Journal of Life Sciences JF - American Journal of Life Sciences JO - American Journal of Life Sciences SP - 30 EP - 37 PB - Science Publishing Group SN - 2328-5737 UR - https://doi.org/10.11648/j.ajls.s.2015030601.15 AB - The present study was planned to study the trichodinosis in the farmed freshwater fish Oreochromis niloticus and investigate the histopathological alterations on the skin and gills. The diseased fish had signs of irritation in the form of erratic swimming, swimming near borders, scratching against hard objects, detached scales, excessive and turbid mucus and ulcerations; and signs of asphyxia in the form of rapid operculum movement, surfacing and piping or gasping. Histopathological examination using light microscopy on the skin of O. niloticus with moderate trichodinosis infection revealed detachment of the epidermis and disarrangement of the collagen bundles in dermis. Heavy infections caused sloughing of the epidermis and the remaining dermis had disarranged collagen bundles and was infiltrated with melanin- carrying cells, forming a thick dark band. Scanning electron micrographs of infected skin surface showed cracked and irregular thickness of squamous epithelium at the whole surface with erosions and marked ulcerations. Histopathological examination using light microscopy on gills of O. niloticus with moderate trichodinosis infection revealed erosions in the epithelial lining cells of the secondary lamellae, causing thinning of their peripheral portions. Heavy infections caused hyperplasia and an intense lamellar epithelial lifting. Scanning electron micrographs of gill arches showed the gill filaments with irregular thickness at their whole lengths. Moreover, filamentary and lamellar surfaces were cracked, spotted and had small notches due to the crawling movement of the Trichodina parasites. VL - 3 IS - 6-1 ER -
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