Dietary incorporation of Sweet Potato Ipomoea batatas shoots improved growth performance and haematological profile of Tilapia Oreochromis niloticus in Hapa Nets

Özet

This study was conducted to evaluate the potential of sweet potato Ipomoea batatas powder (IbSPP), hot-water extracts (IbSPHWE) and crude ethanolic extracts (IbSPCEE) as growth promoter and immunoenhancer for tilapia cultured in hapa nets. Fish were divided randomly into four Treatments: T1 (control group) was fed a practical diet (PD) while T2, T3 and T4 were fed PD + IbSP powder (P), PD + IbSP hot-water extract (HWE), PD + IbSP Crude Ethanol Extracts (CCE), respectively. The growth indices and haematological profile of cultured fish were recorded after four months of feeding experiment.The final weight, weight gain, specific growth rate, condition factor, FCR, PER, FER were significantly higher in fishes that received PD +IbSPHWE than those that received either PD, PD + IbSPCEE or PD+ IbSPP only. The same trend was observed with the RBC, Hb, HCT, WBC and the PLT and its indices. The study has demonstrated that incorporation of the hot-water extracts of I. batatas could improve the growth performance and increase immunocompetence of O. niloticus as evidenced by improved haematological profile.