Table 7.
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Mean (±SE) final individual weight (FW), percentage weight gain (PWG), total amount of diet fed (g/fish), feed conversion ratio (FCR), protein efficiency ratio (PER), and percent survival of juvenile Nile tilapia fed practical diets containing plant and animal protein sources either singly or in combinations as partial or total replacement of fish meal (experiment 2). Mean values within a row followed by different letters are significantly different (P < 0.05). SPC = soy protein concentrate; see Table 1 for definition of other abbreviations.

Diet
Variable1 (control)2 (SBM‐FM)3 (SBM)4 (SBM‐PBM)5 (SPC)6 (SPC‐PBM)
FW (g/fish)64.53 ± 1.8 z42.84 ± 2.4 x13.87 ± 0.7 w53.60 ± 2.7 y13.50 ± 0.7 w65.15 ± 1.3 z
PWGa2157 ± 46 z1334 ± 41 x397 ± 31 w1795 ± 74 y397 ± 10 w2213 ± 93 z
Diet fed (g/fish)69.65 ± 1.90 z46.96 ± 7.2 y17.15 ± 1.7 x54.09 ± 6.1 y19.20 ± 0.6 x68.33 ± 1.0 z
FCR1.13 ± 0.01 x1.16 ± 0.13 x1.54 ± 0.06 y1.06 ± 0.09 x1.79 ± 0.08 z1.10 ± 0.02 x
PERb2.32 ± 0.02 z2.31 ± 0.31 z1.69 ± 0.06 y2.50 ± 0.25 z1.39 ± 0.06 y2.23 ± 0.03 z
Survival (%)95.0 ± 4.0 z92.5 ± 4.4 z90.8 ± 4.8 z85.8 ± 8.4 z93.3 ± 3.6 z98.3 ± 1.0 z
Diet
Variable1 (control)2 (SBM‐FM)3 (SBM)4 (SBM‐PBM)5 (SPC)6 (SPC‐PBM)
FW (g/fish)64.53 ± 1.8 z42.84 ± 2.4 x13.87 ± 0.7 w53.60 ± 2.7 y13.50 ± 0.7 w65.15 ± 1.3 z
PWGa2157 ± 46 z1334 ± 41 x397 ± 31 w1795 ± 74 y397 ± 10 w2213 ± 93 z
Diet fed (g/fish)69.65 ± 1.90 z46.96 ± 7.2 y17.15 ± 1.7 x54.09 ± 6.1 y19.20 ± 0.6 x68.33 ± 1.0 z
FCR1.13 ± 0.01 x1.16 ± 0.13 x1.54 ± 0.06 y1.06 ± 0.09 x1.79 ± 0.08 z1.10 ± 0.02 x
PERb2.32 ± 0.02 z2.31 ± 0.31 z1.69 ± 0.06 y2.50 ± 0.25 z1.39 ± 0.06 y2.23 ± 0.03 z
Survival (%)95.0 ± 4.0 z92.5 ± 4.4 z90.8 ± 4.8 z85.8 ± 8.4 z93.3 ± 3.6 z98.3 ± 1.0 z
a

PWG = 100 × [(Wt − Wi)/Wi ] (see text).

b

PER = weight gain (g)/protein fed (g).

Table 7.
Open in new tab

Mean (±SE) final individual weight (FW), percentage weight gain (PWG), total amount of diet fed (g/fish), feed conversion ratio (FCR), protein efficiency ratio (PER), and percent survival of juvenile Nile tilapia fed practical diets containing plant and animal protein sources either singly or in combinations as partial or total replacement of fish meal (experiment 2). Mean values within a row followed by different letters are significantly different (P < 0.05). SPC = soy protein concentrate; see Table 1 for definition of other abbreviations.

Diet
Variable1 (control)2 (SBM‐FM)3 (SBM)4 (SBM‐PBM)5 (SPC)6 (SPC‐PBM)
FW (g/fish)64.53 ± 1.8 z42.84 ± 2.4 x13.87 ± 0.7 w53.60 ± 2.7 y13.50 ± 0.7 w65.15 ± 1.3 z
PWGa2157 ± 46 z1334 ± 41 x397 ± 31 w1795 ± 74 y397 ± 10 w2213 ± 93 z
Diet fed (g/fish)69.65 ± 1.90 z46.96 ± 7.2 y17.15 ± 1.7 x54.09 ± 6.1 y19.20 ± 0.6 x68.33 ± 1.0 z
FCR1.13 ± 0.01 x1.16 ± 0.13 x1.54 ± 0.06 y1.06 ± 0.09 x1.79 ± 0.08 z1.10 ± 0.02 x
PERb2.32 ± 0.02 z2.31 ± 0.31 z1.69 ± 0.06 y2.50 ± 0.25 z1.39 ± 0.06 y2.23 ± 0.03 z
Survival (%)95.0 ± 4.0 z92.5 ± 4.4 z90.8 ± 4.8 z85.8 ± 8.4 z93.3 ± 3.6 z98.3 ± 1.0 z
Diet
Variable1 (control)2 (SBM‐FM)3 (SBM)4 (SBM‐PBM)5 (SPC)6 (SPC‐PBM)
FW (g/fish)64.53 ± 1.8 z42.84 ± 2.4 x13.87 ± 0.7 w53.60 ± 2.7 y13.50 ± 0.7 w65.15 ± 1.3 z
PWGa2157 ± 46 z1334 ± 41 x397 ± 31 w1795 ± 74 y397 ± 10 w2213 ± 93 z
Diet fed (g/fish)69.65 ± 1.90 z46.96 ± 7.2 y17.15 ± 1.7 x54.09 ± 6.1 y19.20 ± 0.6 x68.33 ± 1.0 z
FCR1.13 ± 0.01 x1.16 ± 0.13 x1.54 ± 0.06 y1.06 ± 0.09 x1.79 ± 0.08 z1.10 ± 0.02 x
PERb2.32 ± 0.02 z2.31 ± 0.31 z1.69 ± 0.06 y2.50 ± 0.25 z1.39 ± 0.06 y2.23 ± 0.03 z
Survival (%)95.0 ± 4.0 z92.5 ± 4.4 z90.8 ± 4.8 z85.8 ± 8.4 z93.3 ± 3.6 z98.3 ± 1.0 z
a

PWG = 100 × [(Wt − Wi)/Wi ] (see text).

b

PER = weight gain (g)/protein fed (g).

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