Growth and economic performance of Nile Tilapia, Oreochromis niloticus (L.) fingerlings fed diets containing graded levels of sclerotium
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2013, Vol 6, Issue 3
Abstract
This study was conducted to evaluate the effects of inclusion of sclerotium as a substitute for soybean meal in the diet of Oreochromis niloticus using growth performance, economy of production, haematological and biochemical parameters as indices. Four experimental diets comprising of control (CTR) without sclerotium and other three diets SC1, SC2 and SC3 containing 7.5, 10.0 and 12.5 % sclerotium, respectively. The experimental diets were fed to triplicate groups of fish fingerlings (0.81± 0.00g average body weight) for 70 days. The inclusion of sclerotium at 7.5% level recorded the best values for mean weight gain (MWG), specific growth rate (SGR) and feed conversion ratio (FCR). There was no significant difference (p>0.05) in the incidence cost (IC) and profit index (PI) among the diets however, the best results were achieved at 10% (SC2) inclusion level. The parked cell volume (PCV), haemoglobin (Hb), neutrophil and lymphocyte showed significant difference (p<0.05) between CTR and other three diets while there was no significant difference (p>0.05) in eosinophil among the four diets. Biochemical parameters recorded significant differences (p<0.05) among the four diets. Hence, due to the nutritional and therapeutic characteristics of sclerotium, its inclusion in the diet up to 12.5% could be tolerated by O. niloticus.
Authors and Affiliations
Muyideen Lawal, Ademola Aderolu, Oluwaseun Aarode
Keywords
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