Proximate composition and mineral contents of pebbly fish, Alestes baremoze (Joannis, 1835) fillets in relation to fish size
2014
Kasozi, N. | Degu, G.I. | Asizua, D. | Mukalazi, J. | Kalany, E.
Alestes baremoze (Joannis, 1835), locally known as Angara in Uganda, is native to fresh watersystems in Africa, thriving well in both lacustrine and riverine conditions. It is part of the routinediets of families in northern Uganda, South Sudan, the Sudan and the Democratic Republic ofCongo. The objective of this study was to determine the proximate composition and mineralcontents of A. baremoze fillets according to fish size. The mineral contents of A. baremoze fromLake Albert were analysed using standard procedures. The fish samples were categorised intothree size-groups; <1 kg (880–990g), 1-1.5 kg and 1.6-2.5 kg. On wet weight basis, there were nosignificant differences (p>0.05) in crude protein and ash content among the different fish sizes.However, there were significant differences (p<0.05) in crude fat, carbohydrate, gross energy andvitamin A. Crude fat (0.35%), carbohydrate (0.37%) and gross energy (597.6 Kcal/100 g) weresignificantly higher in medium sized fish (1 to 1.5 kg) compared with the larger fish category.Vitamin A contents of different fish sizes ranged from 55.1 to75.3 μg RAE/100g. The contents ofmagnesium and iron were highest in sizes <1 kg (5.34 mg/100 g) and (3.58 mg/100 g), respectively.It was observed that potassium content (339.33 mg/100 g) and calcium (29.75 mg/100 g) weresignificantly higher (p<0.05) in fish >1.5 kg. These findings suggest that taste, freshness andother related external appearances should not be the only factors to be considered in making choice for marketing and consumption of Alestes baremoze.
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