Abstract

The goal of the current study was to determine how the products QZ Toss and Biocure may affect the Nile tilapia's (Oreochromis niloticus) growth, and health feature. Six of the seven fish groups that received the QZ Toss supplement for 35 days either on feed or in water were kept on a control diet. Growth and histopathological intestinal assessment significantly increased with the addition of oregano and/or probiotic mixture. Regardless of the amount of bioorgano utilized, the histological analysis showed that the groups treated with oregano had better intestinal epithelial state than the other groups. Additionally, the length of the intestinal villi increased. Therefore, as an effective way to accomplish practical and sustainable fish production, we may advise adding Biocure to aqua-feed in addition to applying QZ Toss to rearing water.

Key words: oreochromis niloticus-probiotics-QZ TOSS-Histopathological-Growth.