Growth parameters Experimental diets
A B C D E F
Initial mean body weight (g fish-1) 3.2 ± 0.1a 3.3 ± 0.03a 3.2 ± 0.11a 3.3 ± 0.2a 3.3 ± 0.2a 3.3 ± 0.05a
Initial  body length (cm) 6.5 ± 0.01a 6.6 ± 0.12a 6.3 ± 0.04a 6.5 ± 0.02a 6.3 ± 0.11a 6.4 ± 0.04a
Final mean body weight (g fish-1) 62.3 ± 0.41a 42.8 ± 0.19b 56.2 ± 0.21c 57.5 ± 0.23ce 58.3 ± 0.27ce 60.2 ± 0.321ae
Mean body weight gain (g fish-1) 59.1 ± 0.32a 39.5 ± 0.21b 53.0 ± 0.25c 54.2 ± 0.23ce 55.0 ± 0.31ce 56.9 ± 0.31ae
Final body length (cm) 17.3 ± 0.24a 15.2 ± 0.11b 16.3 ± 0.23ab 16.3 ± 0.11ab 16.5 ± 0.22ab 17.2 ± 0.21a
Specific growth rate ( % day-1) 3.96 ± 0.11a 3.43 ± 0.09b 3.80 ± 0.03a 3.81 ± 0.03a 3.84 ± 0.04a 3.87 ± 0.03a
Feed conversion ratio 3.23 ± 0.02a 3.38 ± 0.05b 3.25 ± 0.3a 3.26 ± 0.05a 3.30 ± 0.03a 3.25 ± 0.03a
Metabolic growth rate (gkg0.8 day-1) 13.28 ± 0.22a 11.63 ± 0.11b 12.82 ± 0.15a 12.89 ± 0.21a 12.96 ± 0.21a 13.09 ± 0.1a
Protein efficiency ratio 1.91 ± 0.03a 1.28 ± 0.01b 1.71 ± 0.11a 1.75 ± 0.02a 1.78 ± 0.03a 1.84 ± 0.03a
Survival rate (%) 100 ± 0.00a 100 ± 0.00a 100 ± 0.00a 100 ± 0.00a 100 ± 0.00a 100 ± 0.00a
*Mean values in the same row having the same letters are not significantly different (P>0.05)
Table 2: Mean values of growth parameters of juvenile O. niloticus fed with different experimental diets.
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