At the end of the experiment (60 days after absorption of yolk sac), total length and weight were measured for each individual and survival rate were calculated for each treatment. The larvae were sampled from each treatment group at 3 day after hatching (d.p.h) and fixed with 70% ethanol and stored at -20°C until analysis (Nomura et al., 2004). For measurement of the relative DNA content, flow cytometry (FCM) was conducted using a BD FACS Canto flow cytometer (Beckton Dickinson Immunocytometry Systems San Jose, CA, USA). The method of FCM analysis was followed according to the protocol described by Çakmak Yılmazer (2011). The statistical testing to verify differences between the groups was carried out using a one-way analysis of variance (ANOVA).