A stocking rate of 20 juveniles of healthy Japanese shrimp “Penaeus japonicas", with an average initial body weight of 0.1+0.3 g and a total body length of 1.4+0.1 cm, was acclimatized in cultivating fiberglass tanks (100 L volume)  for ten days. Four diets were created based on the proximate installation of the fodder ingredients (C: control, B: 2.5 g bactocell, A: 2.5 g agrimos and BA: 2.5 g bactocell +1g[H1]  agrimos)/ kg diet. Shrimps were dispensed into four empirical diets as 3 replicates per each. For sixty days, thrice a day, larvae were fed with experimental diets until satiation. The juveniles were weighed every ten days. Hemolymph was possessed randomly from selected juveniles in each group to determine the total hemocyte (THC), the hyaline cells (HCs), and the granular cells (GCs). The survival of the juveniles fed on BA was significantly high (P>0.05)  compared to the juveniles fed on the other diets. Specific growth rate (SGR) of kuruma shrimp fed on BA and B was significantly higher (P>0.05) than juveniles fed on other experimental diets. The preferable feed conversion ratio (FCR[H2] ) was for the juveniles fed on BA diet. The high significant protein productive value (PPV), energy retention (ER), and protein efficiency ratio (PER) [H3] were addressed with respect to the juveniles fed on BA. Compared to the control group, a considerable excess was recorded in THC in groups fed on B, A, and BA. The average percentage of GCs for the group fed on A diet was considerably lower than the other juveniles, but no statistically significant variance was detected (P <0.05). Notably, the average percentage of total hemolymph count cells in C group (control group) was considerably lower than that in the other groups (P<0.05[l4] )  [H1]Why authors did use here 1 g of agrimos instead of 2.5 g agrimose?  [H2] Any abbreviation in the abstract should be identified.  [H3] [H3] Any abbreviation in the abstract should be identified.  [l4] In the abstract you need to: 1- justify why this study was conducted. 2-  show the importance of the obtained resuts of the current study..