Effects of different level of watermeal in feed on growth performances of tinfoil barb (Barbonymus schwanenfeldii)

Abstract

The objectives of this research were to find an appropriate feed formula on growth
of tinfoil barb (Barbonymus schwanenfeldii) and to find the cost of the fish feed. The
experimental design was Completely Randomized Design (CRD). There were 4 treatments
(feed formula) and 3 replications, treatment 1 used commercial feed and treatment 2-4 used
local-made feed mixed with 0 10 and 20% watermeal, respectively. The duration of the
experiment was 12 weeks. After the experiment, the average weight gained of fish, average
daily gain (ADG), feed conversion ratio (FCR) and survival rates of all treatments were not
significant different (P>0.05). The costs of all fish feeds were not significant different (P>0.05)
but the cost of feed mixed with 10% watermeal was the lowest to produce 1 kg fish. It was
recommended that 10% watermeal mixed in fish feed was the appropriate feed to reduce
the cost of fish culture investment.