Summary: | The study was conducted to determine the possibility for culturing African catfish Clarias
gariepinus juvenile in low saline water and to determine the optimum level of salinity for
survival and growth. The study was carried out with six treatments from 0 (as a control),
1, 2, 3, 4 and 5ppt of water media with three replicate in each level. African catfish
juvenile with an initial length of 0.26 and 0.29 gram were stocked at 20 tails per 7 liter
no recirculating aquarium tank in each treatment. Prior to the experiment juvenile were
acclimated by a gradually increased the salinity per hour for each treatment. Juvenile
were fed by using marine sinking pellet until satiation twice a day at 8.30 am to 3.30
pm. Furthermore, survival and growth performance were evaluated. After three weeks of
experiment, there are no significant different in survival result. Survival was almost
similar at all levels of salinity. The best growth (final weight (g), weight gain (%) and
SGR(g/%» was perform in 1ppt are 2.679±0.02, 371.254, 5.565 respectively and the
poorest was at 5ppt where the growth performance are 1.824±0.15, 259.799, 4.578,
respectively. Overall, the optimum level of salinity for culturing juvenile was suggested at
1ppt due to the best growth performance.
|