Effect of enhanced Artemia with gamat emulsion on growth performance and survival rate of white shrimp Litopenaeus vannamei larvae

The objective of this research was to determine the effect of nauplius Artemia sp. enriched with different doses of gamat emulsion extract on growth performance and survival rate of white shrimp, Litopenaeus vannamei larvae. We used a completely randomized design with six treatments and three replication. Tested treatments were A; Artemia sp. without enriched by gamat emulsion extract (control), B; Artemia sp. enriched with 1 ml / L gamat emulsion, C; Artemia sp. enriched with 5 ml / L gamat emulsion, D; Artemia sp. enriched with 10 ml / L gamat emulsion, E; Artemia sp. enriched with 15 ml / L gamat emulsion and F; Artemia sp. enriched with 20 ml / L gamat emulsion fed for 12 days. Results showed that the administration of nauplius Artemia sp. enriched with gamat emulsion extract had a significant effect on larval weight gain (WG), length gain (LG) and survival rate (SR) (P<0.05), but no significant effect on specific growth rate (SGR) (P>0.05). The optimum weight gain (WG), length gain (LG) and survival rate were found at treatment D; 10 ml / L gamat emulsion extract concentration with 0.00065 +/- 0.000057 g, 3.43 +/- 0.12 cm and 86.67 +/- 7.09 % respectively. Thus it can be concluded that the use of gamat emulsion extract is recommended to enrich nauplius artemia as live feed for white shrimp Litopenaus vannamei larvae feeding.