Different Feed Ingredients on Growth, Survival, Production and Feed Conversion Ratio of Cage Reared White Shrimp, Penaeus indicus at Vellar Estuary

摘要

To assess the effect of various feed ingredients on growth, survival, production and feed conversion ratio of Penaeus indicus . Four uniform size rectangular cages (10x5x1.5 m) were erected on the bottom soil substrate. All these cages were uniformly stocked at the rate of 50 m-2 with juveniles of size ranging from 3.3 to 4.1 g. The shrimps of the first cages were fed with fish meal based diet, the second with clam meal based diet, the third with soyaben based diet and fourth with mixed diet of fish meal, clam meal and soyabean. As the culture was carried out for 100 days, all the cages were changed at regular interval of 34 days. The higher growth 22.9 g, survival rate 97%, production rate 1110.65 g m-2 and better feed conversion ratio 1:1:8 were observed for the shrimps fed with the mixed diet.