This study covers set of feeding trials on the uses of different Artemia biomass preparations as feeds in the larviculture and nursery phases of the important cultured crustaceans in Mekong delta. For larval rearing of tiger shrimp (Penaeus monodon), performance of postlarvae (PL) received supplementation of the combination diets (commercial INVE feed and formulated feed containing Artemia biomass) were equal to or better than those fed INVE feed alone as their display with better growth rate and higher resistance to formalin stress. Similarly, postlarvae of P. monodon fed formulated feeds containing Artemia biomass attained excellent growth performance and feed efficiency, and higher tolerance to formalin test as compared to those fed fishmeal control diet. For nursery culture of freshwater prawn (Macrobrachium rosenbergii), both survival and growth performances of prawn PL were positively correlated with the dietary Artemia protein inclusion level up to 100% substitution. Especially, prawn fed diet complete replacement of fishmeal protein with Artemia protein was superior to those fed the fishmeal control diet. Furthermore, mud crab (Scylla paramamosain) crablets fed with live Artemia biomass had the best performance in terms of survival and growth rate, followed by the group fed with frozen Artemia, the control group (fresh shrimp meat) and the group receiving the dried Artemia-based formulated diet. Therefore, live Artemia biomass proved an ideal feed for nursery of S. paramamosain crabs, and frozen Artemia biomass can be an alternative in off-season when biomass shortage. All the feeding trials have been proved that Artemia biomass can be used either as direct feed or as ingredient in formulated feeds in crustacean diets. These results indicate the high potential for local utilization of Artemia biomass inVietnam for reliable production of crustacean postlarvae. Detailed feed formulas, their nutritional contents and PL performances will be presented and further discussion.