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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 20, No. 4, 2016, pp. 1069-1073
Bioline Code: ja16113
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 20, No. 4, 2016, pp. 1069-1073

 en Evaluation of the Biochemical Responses of Catfish ( Clarias gariepinus check for this species in other resources Burchell, 1822) after Replacing Fish Oil with Plant-based Oils in their Diets
EFFIONG, MMANDU U. & AKPAN, ANTHONY W.

Abstract

This study evaluated biochemical responses of Clarias gariepinus check for this species in other resources after replacing fish oil with plantbased oils in their diets. The sources of oils were coconut, olive, crude palm, sunflower and sesame seed. These oils were incorporated at 7% level to produce five isonitrogenous (41.03% protein) diets. The sixth diet contained fish oil and served as control experiment. Feeding trial was conducted in floating hapa (1m3) system for 12 weeks. At harvest, blood samples were taken and examined for serum protein, albumin, globulin, electrolytes and tissue lipid peroxidation. Results showed that kidney function parameters (protein, albumin and globulin) increased significantly (p < 0.05) in palm oil treated group while the highest (p < 0.05) serum ions were observed in olive oil treated fish. The amount of malondialdehyde (MDA) formed in fish tissues also increased (p < 0.05) in palm oil group by 41%, 14%, 39% and 14 % in the liver, kidney, gill and heart respectively. However, no significant difference (p > 0.05) was observed in MDA formation in fish fed olive oil and control diets. Inferences from this study conclusively support the direct use of palm and olive oils as total replacement for fish oil in diets of Clarias gariepinus.

Keywords
Clarias gariepinus; fish oil; plant oils; substitution; fish health; fish diet

 
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