Golden apple snail, Pomacea canaliculata meal as protein source for rabbitfish, Siganus guttatus culture.
The golden apple snail (GAS) was introduced in the Philippines in 1980s as food for human and farm animals and later turned into a destructive invasive species especially in rice fields. The feasibility of the golden apple snail as an alternative protein source has been tested for tilapia, shrimp and prawn. This study determined the growth performance of rabbitfish, Siganus guttatus using GAS meal as protein source in terms of growth parameters, survival rates (SR), feeding efficiency and economic viability of formulated feeds used. The experiment consisted of four treatments (T1-control diet; T2-test diet with 15% CP; T3-test diet with 30% CP; T4-test diet with 45% CP) that was replicated three times over a period of 120 days. Each cage was stocked with 60 pcs fry and set up in a randomized completely block design. This study revealed that utilization of GAS meal with 45% crude protein (CP) as protein source for S. guttatus can replace or substitute fish meal for more than two months at a cheaper cost. For better results of formulated feeds, pre-mixed vitamins and minerals must be added.