INFLUENCE OF IMUNO-ONE AS A POTENTIAL GROWTH AND SURVIVAL PROMOTOR IN WHITE-LEG SHRIMP (Penaeus vannamei)

Abstract

This study was conducted to assess the effects of the Imuno-One product on the growth rate and survival rate of whiteleg shrimp (Penaeus vannamei). The experiment included 7 treatments and performed in triplicates, where the control treatment (ĐC) used commercial feed without Imuno-One supplementation, and 6 experimental treatments (IO1; IO2; IO3; IO5; IO7.5; IO10) corresponding to Imuno-One dosages of 1, 3, 5, 7.5 and 10 mL/kg of feed. Whiteleg shrimp, with an initial weight of 0.76 - 0.81 g, were cultured in 120 L plastic tanks containing 80 L of water, with a stocking density of 50 shrimp per tank. After 30 days of cultivation, the results showed that the treatments supplemented with Imuno-One at doses of 7.5 mL (IO7.5) and 10 mL/kg feed (IO10) exhibited better growth in terms of weight and length, as well as higher daily growth rate (DWG) and specific growth rate (SGR), compared to the other treatments (p < 0.05). The feed conversion ratio (FCR) for shrimp in the IO7.5 treatment was the lowest (0.94), significantly lower than in the other treatments (p < 0.05), though there was no difference between IO7.5 and IO10 (p < 0.05). However, no significant difference was found in survival rates between the treatments with and without Imuno-One supplementation. In conclusion, the concentration of Imuno-One at 7.5 and 10 mg/L resulted in highest growth rate and should be applied in shrimp farming.