EFFECTS OF DIFFERENT TYPES OF FEED ON GROWTH, SURVIVAL AND DIGESTIVE ENZYME ACTIVITY OF EARLY JUVENILE-STAGE MARBLE GOBY, Oxyeleotris marmoratus
Abstract: The stable mass seed
production technique of marble goby, Oxyeleotris marmoratus has not yet been
established due to high mortality occurring on the early juvenile stage and/or
after 40 days after hatching (d AH). In order to establish the mass seed
production technique, O. marmoratus juveniles of 40 d AH were reared for 60
days to determine growth, survival and digestive enzyme activity at different
types of feed (trash fish, artificial feed and Artemia sp. nauplii). Specific
growth rate (5.32) and survival rate (91.3%) in juveniles fed Artemia sp.
nauplii showed significantly higher (P<0.05) than those of juveniles fed
trash fish and artificial feed. At the end of the experiment, the mean specific
trypsin, amylase and lipase activities of juveniles fed Artemia sp. nauplii were
recorded as 0.04 mU mg protein-1m-1, 0.114 mg maltose mg protein-1h-1 and 9.58
m Units, respectively, and they were significantly higher than those of
juveniles fed trash fish and artificial feed. In the present study it was shown
that O. marmoratus early juveniles had more efficient digestibility and
absorption the nutrient when fed with Artemia.
Keywords: Oxyeleotris
marmoratus; juvenile; types of feed; growth; digestive enzyme activity
Author: Muhammad Darwis, Sitti
Raehana Muhd. Shaleh, Masaru Tanaka, Shigeharu Senoo
Journal Code: jpperikanangg080004
