Abstract
This study was conducted to evaluate the effects of different protein contents in diet on the growth and survival rate of black apple snail (Pila polita). There were 3 replicates in each treatment and snails were fed with protein levels at 15 (P15); 20 (P20); 25 (P25); 30 (P30); 35 (P35) and 40% (P40). Newly hatched snails with initial shell height and weight of 4.88 mm and 0.03g were reared in the composite tanks (80×60 cm, water column of 20 cm) with the density of 150 ind./tank. After 49 days of rearing period, the average weight and height of the snail at P25 (1.17 g and 17.3 mm) were higher (p0.05). Snails in P25 obtained the highest yield (349 g/m2) and it was significantly different (p
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