Parameters PBM0 PBM25 PBM50 PBM75 PBM100 Initial body weight (g/snail) 0.11 ± 0.01 0.11 ±  0.01 0.11 ± 0.01 0.11 ± 0.01 0.11 ± 0.01 Final body weight (g/snail) 3.68 ± 0.25 4.09 ±  0.18 4.05 ±  0.23 4.19 ± 0.07 3.11 ± 0.07 Initial sizes (indv. kg-1) 10000 ±  0.01 10000 ±  0.01 10000 ± 0.01 10000 ± 0.01 10000 ± 0.01 Final sizes (indv.kg-1) 271.7 ± 19.09b 244.9 ± 10.91c 246.9 ± 17.10c 238.7 ± 1.58c 321.5 ± 4.58a Body weight gain (g/snail) 3.58 ± 0.25c 3.99 ± 0.18b 3.98 ± 0.28b 4.08 ± 0.12b 3.04 ± 0.24d Absolute growth (g mo-1) 0.72 ± 0.05c 0.79 ± 0.03b 0.80 ± 0.06b 0.82 ± 0.02b 0.62 ± 0.01d Specific growth rate (% day-1) 2.12 ± 0.07c 2.19 ± 0.03b 2.19 ± 0.04b 2.21 ± 0.01b 2.03 ± 0.01d Total food intake (g) 1110 ± 5.81d 1121 ± 8.04b 1124 ± 13.13b 1136 ± 8.45c 1053 ± 10.08e Food conversion rate 1.18 ± 0.05b 1.08 ±  0.08c 1.02 ± 0.08c 1.04 ± 0.03c 1.81 ± 0.03a Protein efficiency ratio 0.51 ± 0.03b 0.48 ± 0.07c 0.45 ± 0.2c 0.44 ± 0.01c 0.59 ± 0.02a Final survival rate (%) 93.22 ± 2.37 93.67 ± 2.52 93.94 ± 0.47 93.28 ± 0.33 92.73 ± 0.37 Remarks: PBM0=Fishmeal 100% and poultry meal 0% PBM25=Fishmeal 75% and poultry meal 25% PBM50=Fishmeal 50% and poultry meal 50% PBM75=Fishmeal 25% and poultry meal 75% PBM100=Fishmeal 0% and poultry meal 100% Value within the same column followed by different letter superscripts were significantly different (P<0.05). Values are means of three replicates per treatment.

Table 2: Growth performance of hatchery–reared juvenile B. areolata fed different experimental diets for 150 days. Values within the same row with different superscripts are significantly different (P<0.05).

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