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Original Article 


Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku

Mohamed Mourad, Mahmoud Tanekhy, Ekbal. Wassif, Hanem Abdel-tawab, Afaf Mohamed.

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    • Abstract
    The main objective of this study is to assess some biochemical and histopathological changes in Nile Tilapia, Oreochromis niloticus caught from Lake of Edku. A decrease in serum total protein, albumin, total lipids, bactericidal activity, ALT and AST were observed in El-Maadyah and Edku drain regions compared to recovery group, while the level of serum glucose and lysozyme activity were increased. The frequencies of micronucleus (MN) and nuclear abnormalities (NAs) in fish erythrocytes showed an increase of micronuclei, lobed nuclei and fragmented apoptotic nuclei while notched nuclei were decreased. Finally, the frequencies of morphologically altered erythrocytes (MAEs) of fish showed an increase in swelled cells, vacuolated cytoplasm; microcytes; echinocytes; tear-drop like; sickle cells; nuclear retraction and hemolyzed cells while fused cells were decreased. On the other hand, the main prominent hepatic lesions were parasitic granuloma, encapsulated cysts by connective tissue, fatty degeneration, congestion and necrosis. The histopathological analysis of muscle sections of both polluted sites showed edema, splitting of muscle fibers, hyalinized muscle fibers, fatty tissue, necrosis and infiltration of lymphocytes. From the above, we can conclude that the contaminated environment of fish could cause detrimental effects on fish tissues and immune system causing great economic losses for the natural resources.

    Key words: : Biochemical; Histopathology; Nile Tilapia, Oreochromis niloticus; Lake of Edku


    		 
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    How to Cite this Article
    Pubmed Style

    Mourad M, Tanekhy M, Wassif E, Abdel-tawab H, Mohamed A. Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. AJVS. 2017; 55(2): 40-51. doi:10.5455/ajvs.276968

    Web Style

    Mourad M, Tanekhy M, Wassif E, Abdel-tawab H, Mohamed A. Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. https://www.alexjvs.com/?mno=276968 [Access: June 28, 2026]. doi:10.5455/ajvs.276968

    AMA (American Medical Association) Style

    Mourad M, Tanekhy M, Wassif E, Abdel-tawab H, Mohamed A. Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. AJVS. 2017; 55(2): 40-51. doi:10.5455/ajvs.276968


    Vancouver/ICMJE Style

    Mourad M, Tanekhy M, Wassif E, Abdel-tawab H, Mohamed A. Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. AJVS. (2017), [cited June 28, 2026]; 55(2): 40-51. doi:10.5455/ajvs.276968


    Harvard Style

    Mourad, M., Tanekhy, . M., Wassif, . E., Abdel-tawab, . H. & Mohamed, . A. (2017) Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. AJVS, 55 (2), 40-51. doi:10.5455/ajvs.276968


    Turabian Style

    Mourad, Mohamed, Mahmoud Tanekhy, Ekbal. Wassif, Hanem Abdel-tawab, and Afaf Mohamed. 2017. Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. Alexandria Journal of Veterinary Sciences, 55 (2), 40-51. doi:10.5455/ajvs.276968


    Chicago Style

    Mourad, Mohamed, Mahmoud Tanekhy, Ekbal. Wassif, Hanem Abdel-tawab, and Afaf Mohamed. "Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku." Alexandria Journal of Veterinary Sciences 55 (2017), 40-51. doi:10.5455/ajvs.276968


    MLA (The Modern Language Association) Style

    Mourad, Mohamed, Mahmoud Tanekhy, Ekbal. Wassif, Hanem Abdel-tawab, and Afaf Mohamed. "Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku." Alexandria Journal of Veterinary Sciences 55.2 (2017), 40-51. Print. doi:10.5455/ajvs.276968


    APA (American Psychological Association) Style

    Mourad, M., Tanekhy, . M., Wassif, . E., Abdel-tawab, . H. & Mohamed, . A. (2017) Biochemical and Histopathological Changes in Nile Tilapia, Oreochromis niloticus at Lake Edku. Alexandria Journal of Veterinary Sciences, 55 (2), 40-51. doi:10.5455/ajvs.276968




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    About Alexandria Journal of Veterinary Sciences

    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110-204 ... Read more.



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    Faculty of Veterinary Medicine
    Alexandria University
    P.O.: 21944
    Abees 10th district, Alexandria
    Egypt.

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