Effect of Stocking Density on Survival Rate and Growth of Tilapia (Oreochromis niloticus Linnaeus, 1758) in Round Container with Water Current Combined with Venturi Aeration System
Ayi Yustiati *
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang KM. 21 Jatinangor 45363, West Java, Indonesia.
Shalsabilla Nariswari *
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang KM. 21 Jatinangor 45363, West Java, Indonesia.
Iis Rostini
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang KM. 21 Jatinangor 45363, West Java, Indonesia.
Ibnu Bangkit Bioshina Suryadi
Department of Fisheries, Faculty of Fisheries and Marine Science, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang KM. 21 Jatinangor 45363, West Java, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
The aim of this research is determine of the optimal stocking density for survival rate and growth of tilapia in round container with water current combined with venturi aeration system. Place of research in the Aquaculture Laboratory, Building 4 Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The research method used is experimentally with using the Completely Randomized Design (CRD) method which consists of three treatments, there are 15 fish, 22 fish, 30 fish, with five replications. Using water of 15 L per container. The fish used are 3-5 cm tilapia fingerlings. Fish were maintained for 40 days. The feed given is 5% from biomass which is adjusted every 10 days. The parameters observed were survival rate (SR) and observed everyday, daily grow rate (DGR), feed conversion ratio (FCR) and feed efficiency were observed every 10 days. The result was significantly different from the analysis of variance (ANOVA) with the F test at 95% confidence intervals and then using Duncan test to compare the rates between treatments. The results showed that the best treatment was stocking density of 15 fish / 15 L in round container with current combined with venturi aeration system with survival rate of 78.67 ±10.95%, daily grow rate of 3.68 ± 0.12%, feed conversion ratio of 1.19 ± 0.13 and feed efficiency of 85.01 ± 8.97%.
Keywords: Stocking density, survival rate, growth, tilapia, round container, water current, venturi aeration, microbubble