| dc.description.abstract | Background: Stocking density is key to successful Majalaya common carp (
Cyprinus carpio Linnaeus 1758) culture which is a valuable fish culture in
Indonesia. The aim of the present study was to evaluate the growth statues,
feed utilization, and survival rate of Majalaya common carp (reared with
different stocking density.
Methods: In total, 1400 fish were randomly distributed into four replicates of
four different groups of stocking density: 50, 75, 100, and 125 fish m . All fish
were fed using a satiation method, three times per day with commercial diet for
12 weeks. At the end of the trial week, growth, feed utilization, and survival
were determined. Water quality measures, such as dissolved oxygen (mg L ),
temperature (°C), pH, NH (mg L ), and NO (mg L ) were also measured
once a week during the trial.
Results: Similar weight gain and SGR were found in Majalaya common carp
reared at stocking densities of 50 to 100 fish m . However, 125 fish m density
may reduce weight gain and SGR. The average weekly and daily weight gain of
Majalaya common carp significantly increased when reared from 50 to 100 fish
m and remained constant at 125 fish m density. Meanwhile, feed conversion
ratio and survival of Majalaya common carp were not affected by any stocking
density.
Conclusions: A stocking density of 100 fish m exhibited significantly higher
growth of Majalaya common carp in hapa net ponds among the treatment.
Temperature ranges of 29.20-33.38°C, pH 7.47-8.22, DO 4.76-7.55 (mg L ),
NH 0-0.5 mg L , and NO 0-1 mg L were found to provide optimum
condition to the fish. | |
