International Journal of Animal Biology
Articles Information
International Journal of Animal Biology, Vol.5, No.1, Mar. 2020, Pub. Date: Jul. 7, 2020
Abnormal Tissues Changes Made by Chlorine in the Gills of Oreochromis niloticus Fish
Pages: 1-4 Views: 37 Downloads: 23
[01] Haram Hassan Abbas Bakhiet, Department of Fisheries and Wildlife Science, College of Animal Production Science and Technology, Sudan University of Science and Technology, Khartoum North, Sudan.
[02] Raian Omer, Department of Fisheries and Wildlife Science, College of Animal Production Science and Technology, Sudan University of Science and Technology, Khartoum North, Sudan.
[03] Alaa Hashim, Department of Fisheries and Wildlife Science, College of Animal Production Science and Technology, Sudan University of Science and Technology, Khartoum North, Sudan.
The study was conducted in the department of fisheries and wildlife science, Sudan University of science and technology aimed to find out the effects of chlorine as disinfection material in gills tissue of Oreochromis niloticus, fish samples were taken from fish hatchery and divided in to three groups, and they were acclimatized for two weeks during this time they were fed by commercial fish food after that they subjected to two dosages’ of chlorine, the first group was subjected to 0.3 ppm, the second group was subjected to 0.5 ppm and the third was the control group without any additives, any dead fish during the experiment was dissected for general observation and their gills taken on 10% buffered neutral formalin and processed using the normal histological technique and examined under light microscope. Histological changes observed in the gills were severe congestion of blood vessels, edema of epithelial cells at the lamellae, Hyperplasia of mucous cells and fusion at lamellae and gills filaments damage were notice in the studied fish gills. In conclusion the histology of the fish gills provides information to evaluate the fish health status and to examine the toxic materials may attack fish in their natural habitats and environment. Also results reinforce the high potential of histopathological changes in increasing concentration of chlorine in water of fish.
Chlorine, Histology, Gills, Hyperplasia, Oreochromis niloticus, Health, Toxicity, Environment
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