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Evaluation of the oxidative status in Oreochromis niloticus fed with tuna by-product meal: possible human health impact
Saidi, A; Azaza, S; van Pelt, J.; El Feki, A (2014). Evaluation of the oxidative status in Oreochromis niloticus fed with tuna by-product meal: possible human health impact. Arch. Physiol. Biochem. 120(4): 140-146. dx.doi.org/10.3109/13813455.2014.950279
In: Archives of Physiology and Biochemistry. Swets & Zeitlinger/Taylor & Francis: Lisse. ISSN 1381-3455, more
Peer reviewed article  

Available in Authors 

Keywords
    Oreochromis niloticus (Linnaeus, 1758) [WoRMS]; Marine
Author keywords
    Cell toxicity; Oreochromis niloticus; oxidative stress; tuna by-productmeal

Authors  Top 
  • Saidi, A
  • Azaza, S
  • van Pelt, J.
  • El Feki, A

Abstract
    The influence of tuna by-product meal (TBM) diets on the activities of antioxidant enzymes in the muscles, gill and kidney of tilapia was evaluated. The control diet (A0) used fish meal (FM) as the sole source of animal protein and the other three diets (A10-A30), 33%-100% of FM was substituted by TBM at 10% increments. The cytotoxicity of liver and muscles cytosol extracts in human liver cell HepG2 was undertaken. The activities of glutathione S-transferase, superoxide dismutase, catalase and TBARS values in the kidney of fish fed with diet A30 were significantly different (p < 0.05) and no alterations were observed in muscle and gill anti-oxidant activities. Our study has confirmed that the cytosol extract does not exhibit cytotoxic effects on the HepG2 cells. These results indicate that the use of TBM as a total replacement for FM into tilapia diets seems to have oxidative stress, thus generating effect on fish metabolism.

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