Study on growth rate and survival rate of polyculture Oreochromisniloticus with Litopenaeusvannamei in different stocking densities in low salinity water

KaewtaLimhang, JanjiraArpanan and ArpornArunrat

ABSTRACT: The objective of this study was to evaluate growth rate and survival rate of Pacific white shrimp (Litopenaeus vannamei) at different stocking densities with tilapia (Oreochromis niloticus) in low salinity water (5 parts per thousand; ppt). A 60-day experiment was conducted by stocking tilapia and Pacific white shrimp under laboratory condition. Culture tanks (500-L fiberglass tank) were sampled into 4 treatments with 3 replicates each. In control, only tilapia were stocked at 25/tank. Treatment 1-3, the tilapia were stocked at the same amount as the control with different shrimp densities of 25, 35 and 45/tank respectively. At the end of experiment, survival rate of shrimps were 55.28+12.90%, 50.10+6.18% and 45.18+9.12% in treatment 1, 2 and 3, respectively. There was no significant difference (P>0.05) between survival rates of shrimp stocked at different densities. Thus, the suitable poly culture of Pacific white shrimp and tilapia should be 25 shrimp and 25 tilapia/tank.

Keywords: Litopenaeusvannamei, Oreochromisniloticus, low salinity water, polyculture

Source : https://ag2.kku.ac.th/kaj/PDF.cfm?filename=P891.pdf&id=1388&keeptrack=10