Evaluation of growth, survival and body composition of larval white shrimp (Litopenaeus vannamei) fed the combination of three types of algae


1 Department of Fisheries, Faculty of Natural Resources, Urmia University, P.O. Box: 46414-356, Urmia, Iran

2 Department of Fisheries, Gonbad Kavous University, Gonbad Kavous, Iran


The larvae of the Pacific white shrimp Litopenaeus vannamei are fed, from the stage of protozoea I until to protozoea III (PZ III), with microalgae. The survival rate, duration of the terms of ZI–ZIII and total length of protozoea larvae (PZ) of L. vannamei were survived. The shrimp larvae fed with the six treatments of microalgae (Chaetoceros muelleriIsochrysis galbanaTetraselmis tetratheleCmuelleri : IgalbanaCmuelleri: Ttetrathele and Igalbana: Ttetratheie). The biochemical composition (protein, carbohydrate, lipid and energy) of the algae and the larvae fed those algae were also measured. The largest sizes were recorded for larvae fed with the mixture Cmuelleri and Igalbana (4.35 mm) and smaller sizes were observed on larvae fed with Igalbana (3.04 mm) (P < 0.05). The larvae fed with mixture Ttetrathele and Cmuelleri (88.42 %) and Igalbana and Ttetrathele (84.50 %) had the highest survival in experimental treatments. The lowest time for development was observed in larvae fed with mixture of Ttetrathele and Cmuelleri (92.6 h). The larvae fed with mixture Igalbana and Ttetrathele had the highest protein and carbohydrate levels as compared with other treatments. Also highest lipid level and gross energy were shown in larvae fed with mixture Cmuelleri and Igalbana (P < 0.05). The results showed that Lvannamei larvae fed with Cmuelleri and the mixed diets containing this species (Cmuelleri + Isochrysis sp., Cmuelleri + Tetraselmis sp.) had the highest growth and survival among treatments.