The present study is aimed to provide information on the food and feeding habit of adult Auchenoglanis biscutatus in Lower River Benue. The natural food of A. biscutatus in the Lower River Benue was studied from stomach contents of the fish. The stomach contents were analyzed using two methods; the frequency of occurrence and point methods. A total of 100 stomachs were randomly examined. Eleven major items constituted the diet of A. biscutatus. The stomach content analysis of A. biscutatus have shown that they fed on the various food items ranging from plant parts, detritus, seeds, digested food particles, fish parts, mollusc, sand/mud, insect parts and algae. This indicates that A. biscutatus is an omnivorous bottom feeder since; bottom dwelling immature insects dominated most of the food items of animal origin, digested food and detritus. A. biscutatus in Lower Benue River feeds on a wide range of food items which could make it to be regarded as an omnivore. Future attempts to culture this species must take cognizance of its food habits in the wild.

This study was aimed to evaluate and compare the effects of different selected energy feed stuff namely; Maize (DT1), Guinea corn (DT2), millet (DT3), and wheat (DT4) on the growth performance and body composition of African sharptooth catfish (Clarias gariepinus Burchell) fingerlings. This energy feedstuff in addition with other feed ingredients was used to formulate four (4) isonitrogenous and isoenergy diets at 40% crude protein. The energy feedstuffs were formulated at 36.31%, 38.26%, 37.09% and 40.05% level of inclusion respectively. The experiment in the ponds used a set of 2 hapas with mesh size 2 mm in each pond measuring 1.62 m2, therefore replicating the experiment 2 times in a completely randomized design The evaluation of the physical parameters revealed that there was no significant difference (p>0.05) in moisture, ash, lipid, fibre, protein and nitrogen free extract among the treatment (diets). The diet with maize (DT1) has the highest growth rate followed by diet containing millet (DT3), guinea corn (DT2) and diet containing wheat (DT4) had the lowest growth rate. This study, revealed that, among the energy feedstuffs evaluated maize (DT1) produced better growth parameters and could be recommended for on-farm aqua-feed.

The food and mineral contents of flesh of the two bivalve species (Egeria radiata and Crassostrea rhizophorea) of Cross river, Nigeria were investigated. The study revealed that the moisture content of E. radiata and C. rhizophorea was 52.46% and 54.01%, crude protein was 24.37% and 20.49%, fat was 9.03% and14.22%, crude fibre was 0.01% and 1.30%, ash was 1.43% and 9.05%, carbohydrate was 12.7% and 2.23% and energy was 229.58J and 218.84J. The mineral content of E. radiata and C. rhizophorea  showed a significant difference (P<0.05) in Ca+, Na+, K, Mg, while the Zn, Pb, Cu, Fe, P and Mn were similar (P>0.05). Based on the findings of this study, biochemical profile of E. radiata is high in nutrients and is suitable for human consumption. Therefore, concerted efforts should be made to enlighten the populace on the increased nutritional benefits of consuming E. radiata.