Sturgeon is the most important species in Caspian Sea. About 93% of the world sturgeon population lives in the Caspian Sea. The aim of propagation and cultivation of these fishes is to generate and improve their stocks in Caspian Sea. The use of advanced techniques for larviculturing these fishes is one of the most important aims in the industry of sturgeon cultivation. The blend of probiotic bacillus (Bacillus licheniformisi , B. subtilis, B. polymyxa, B. laterosporus and B. circulans) under the commercial title of protexin aquatic, were used for bioencapsulation of Artemia urmiana nauplii (as a living feed for these fishes).The bioencapsulated Artemia nauplii was fed by sturgeon larvae (Acipenser persicus, Acipenser nudiventris and Huso huso) and the yeast of Saccharomyces cerevisiae as probiotic, used in feeding of Persian sturgeon (Acipenser persicus) larvae by bioencapsulation of Daphnia magna. However the gained body weight in experimental treatments of sturgeon larvae had significant difference in comparison with control treatment (P<0.05). In experimental treatments, Food Conversion Efficiency was increased while the Relative Food Intake significantly decreased (P<0.05). The probiotic bacillus and yeast had significant positive effects on the Specific Growth Rate, Survival rate, protein efficiency ratio and lipid efficiency ratio in comparison with control treatment (P<0.05). The experiments indicated that the probiotic bacillus and yeast of Saccharomyces cerevisiae have the highest ability to increase the growth parameters and feeding efficiency in cultivation system of sturgeon fish.