Browsing by Author "Sule, S.O."

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    Effect of onion peel waste on microbial load of smoked Clarias gariepinus fish
    (Nigeria Institute of Food Science and Tecnology, 2023-06-08) Sule, S.O.; Ashley-Dejo, S.S.; Oyetunji, O.T.; Olaniyi, S.E.; Adeyemi, A.Y.
    The use of onion peels (Allium cepa) waste (OPW) on the microbiological quality of smoked catfish (Clarias gariepinus) stored for 8 weeks was assessed. Concentration of OPW at 0g, 2.5g and 5g were sprinkled on the fish samples before and after smoking. The microbial result indicated that onion peel acted as an antimicrobial agent on Coliforms bacteria through out the preservation period. It inhibited the growth of aerobic bacteria and fungi for 2 weeks and reduced their count in the treated fish samples, compared to the control. OPW inhibited the growth of some isolated organisms Staphylococcus saprophytica during the initial week, while it inhibited the growth of Shigella sp, Samollena sp., through out the preservation period in the treated samples. OPW 5g can be used to preserve smoked fish without change in quality, sensory and organoleptic assessment of fish for 8 weeks.
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    POTENTIAL OF CATTLE HAIR MEAL BASED DIET AS FISHMEAL REPLACER ON PHYSIOLOGY OF Clarias gariepinus JUVENILES
    (Journal of Aquatic Sciences, 2023) Sule, S.O.; Adeyemi, A.Y.; Ajibade, A.O; Sodeyinde, O.A; Olugbeja, O.H.; Salami, A.S.; Adetutu, J.A.; Tijani, M.T.
    The Cattle hair meal (CHM) has the potential of usage as a dietary protein source in fish nutrition due to the qualitative nutrients present in it and the enormous quantity generated at abattoirs worldwide. This study investigated the inclusion of CHM in diet of Clarias gariepinus as fishmeal replacement. Catfish juveniles with average weight of 5.86±0.14g were stocked in 15 plastic tanks at 21fish/tank in completely randomized design. The experimental fish were fed with 40% crude protein diet at 0%, 25%, 50%, 75% and 100% inclusion of CHM at 3% body weight for duration of 8 weeks. Growth performance, carcass quality, haematology, digestive enzymes, gut morphology and histology of C. gariepinus were assessed. Growth parameters differed significantly (P<0.05) among treatments with similar responses in carcass composition. The blood parameters, digestive enzymes and intestinal morphology also showed variations among treatments. Histological observation revealed that only diet with 25% CHM inclusion showed no alteration in tissues of kidney, liver and intestine. This study recommends usage of CHM up to 25% as replacement for fishmeal in C. gariepinus diet.