Items Treatments No (On DM basis, %) SE*
T1 (Control) T2 T3 T4 T5
Initial weight, g/fish 10.11 10.13 10.11 10.12 10.10 0.07
Final weight,  g/fish 36.75 b 37.00 b 41.97 a 42.92 a 42.64 a 0.54
Average total gain1, g/fish 26.64 b 26.87 b 31.86 a 32.80 a 32.54 a 1.52
Average daily gain2, g/fish/day 0.32 b 0.32 b 0.38 a 0.39 a 0.39 a 0.07
Specific growth rate3 (SGR % /day) 1.53 b 1.54 b 1.69 a 1.72 a 1.71 a 0.11
Survival rate4,  % 90 90 95 100 100 2.10
Feed intake (FI), DM g/fish 47.36 a 45.96 ab 44.60 b 42.98 c 42.63 c 1.86
Feed conversion ratio5 (FCR) 1.78 a 1.71 b 1.40 c 1.31 d 1.31 d 0.11
Protein efficiency ratio6 (PER) 1.87 c 1.94 c 2.37 b 2.53 a 2.53 a 0.20
Protein productive value7 (PPV, %) 30.29 c 36.64 b 45.44 a 48.70 a 49.12 a 1.21
Energy retention8 (ER, %) 21.71 b 23.43 b 28.65 a 30.50 a 30.66 a 1.07
*Means in the same rows having different superscript letters were significantly different at P<0.05 levels.
*Standard error of the mean derived from the analysis of variance.
Table 3: Growth performance parameters of Nile tilapia (O. niloticus) fed on the experimental diets.
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