Author(s): Obany O Deng, Asaad H Mohamed, Agib MA, El- faki FE, Ali ME

Abstract: The fillet percentage yield, chemical composition and mineral elements of wild and farmed African catfish Clarias gariepinus are presented. Farmed males yielded 42.73± 4.42% fillets compared to 49.86± 1.95% for wild males, 51.11± 2.59% for wild females and 46.86±2.45% for farmed females. Studies of proximate chemical composition were examined as parameters of fish flesh quality. The fillets of farmed and wild were significantly different (p<0.05) in moisture (72.8± 5.94 and 75.01± 2.09%), dry matter (26.7± 6.08 and 25± 2.09%), and nitrogen free extract (31.90± 6.58 and 34.5± 1.86%), but there were no significantly different in protein (30.86± 0.68 and 30.98± 0.55%), Ether extract (8.4± 0.30 and 8.1± 0.33%) and ash (1.66± 0.51 and1.31± 0.26%). The proximate chemical composition showed no significantly different with in sex (p>0.05). Levels of the macro elements (mg/l), phosphorus, potassium, manganese, sodium and calcium, and micro elements (mg/l), iron and zinc were no significantly different in farmed and wild, Ca (4.02± 0.47 and 4.32±0.59); P (2.87± 0.42 and 2.80±0.45); Mg (2.65± 0.36 and 2.56±0.38); Na (4.32± 0.35 and 4.34±0.32); K (3.76± 0.41 and 4.07±0.25); Fe (1.72± 0.03 and 1.09±0.49) and Zn (0.096± 0.01 and 0.097±0.01).

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