The aim of this study was to evaluate the effects of dietary lactoferrin (LF) growth and feeding performance and survival of sobaity (Sparidentex hasta) with an average weight of 7.64 ± 0.3 g. This study was carried out in a completely randomized design with three treatments and replications in fiberglass tanks with 300 liters volume. Fish were fed with feed containing 0, 400 and 800 mg lactoferrin per kg feed for a period of 42 days. The obtained results indicated that dietary LF did not change sobaity fish growth and feeding performance (P > 0.05). Overall, this study showed that hematological factors were affected by dietary lactoferrin. Nonetheless, it can be concluded that feeding of sobaity on the diet supplemented with 400 and 800 mg lactoferrin for a period of 6 weeks do not enhance the survival and growth performance.