Pond Based Juvenile Production of Siganids: Growth Performance of 30-Day Post Hatch Siganus guttatus (Bloch, 1787) at Three Stocking Densities

Michael Andam, Davao del Norte State College, Gil Lumasag, Jocelyn Gorospe, Jessie Gorospe
2016 Journal of Environment & Aquatic Resources  
Growth performance, survival and profit index of 30-day post hatch Siganus guttatus (0.08 ± 0.09 g and 1.60 ± 0.15 cm) of the same age group was evaluated for 60 days in hapa net cages (1m wide x 1m long x 1m deep) in pond based conditions. Three stocking densities were replicated three times and laid out using Completely Randomized Design (CRD). The three treatments were: 1(T1)-250 fish m -3 ; 2 (T2)-500 fish m -3 and 3 (T3)-1000 fish m -3 . Growth performances (final weight, weight gain and
more » ... , weight gain and specific growth rate) and survival rates of juveniles stocked in 250 fish m -3 was significantly higher (P < 0.05) than those fish stocked at 1000 fish m-3. However, growth performance and survival rates between 250 fish m -3 and 500 fish•m -3 were not significant. Feed conversion ratio (FCR) was significantly lower (P<0.05) in T1 than T3. However, FCR was not significant between fish stocked in T1 and T2. Net profit was higher in fish stocked in T2 compared with T1. Among the stocking densities of S. guttatus evaluated, 500 fish•m -3 appeared as the optimal stocking density based on growth, survival, FCR and profit index.
doi:10.48031/msunjear.2016.04.07 fatcat:rjl3vwuh4bfvxpcxy7fvmpeq2e