ABSTRACT This study was conducted to investigate the effect of dietary ascorbic acid (AA) on reproductive performance of shrimp Litopenaeus vannamei. Stay C-35 (a stable derivative, mainly monophosphate) was selected as AA source. Four grade levels of ascorbic acid equivalent (AAE) (0, 400, 800, and 1200 mg [kg.sup.-1] diet) were supplemented to the basal diet. Gonadosomatic index (GSI), hepatosomatic index (HSI), fecundity, and egg diameter were not significantly affected by ...
<0.05), and females of group C3 had the highest daily spawns, which was significantly higher than that of group C1 (0.074 vs. 0.050). Fecundity of all the females was similar, and there was no significant difference between the groups (P>