Abstract

Aquaculture activities with high stocking density require good quality of feeding, fully equipped and balanced nutrients for optimized growth, and maintaining fish health. Feed cost in aquaculture activities can consume between 75–90% of production costs. Currently, there is various commercial feed available with similar nutrient composition. However, it is unclear whether these similar nutrient properties can make significant differences in growth performance in the field. Thus, this study aimed to determine growth performance differences in common carp fish (Cyprinus carpio) raised in floating net cages with four different commercial feeds. This study uses four treatments: commercial feed A, commercial feed B, commercial feed C, and commercial feed D. The average weight of fishes used was 30 g. Fishes were raised at floating net cages 7 × 7 × 4 m. Fish were fed three times a day (07.00, 12.00, and 17.00 WIB) until apparent satiation for 70 days. The result shows that commercial feed D has the best daily growth rate, feed conversion ratio, fat retention, and survival rate. Meanwhile, commercial feed C only gave the best result on protein retention.

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