The effect of Saccharomyces cerevisiae as an immune stimulant in white leg shrimp (Litopenaeus vannamei)

Effects of Saccharomyces cerevisiaeon immune parameters and survival rate of the Litopenaeus vannamei after feeding with S. cerevisiae were evaluated in this study. For this purpose, a total of 300 pieces of shrimp with an average weight of 30 to 35 grams were selected from a pool shrimp Abadan Choebdeh and transferred to the center of Bandar Imam Research Station. After making sure the health adaptation was done. shrimps divided to two groups of 150 pieces (including 50 pieces of shrimp in three replication) including a group fed with food without S. cerevisiae and a group fed with S. cerevisiae. Then changes of immune parameters and survival rate were evaluated. The results showed that the relative survival rate between the two groups showed no significant difference. But Immune Factors (THC, TPP, PO, POD& SOD) in the treatment fed S. cerevisiae (T1) compared to control treatment (T2) showed a significant increase. In conclusion these results suggest that consumption of S. cerevisiae improves the immune system of the shrimp.