Effect of Addition of Betel Leaf Extract (Piper betle) on Feed for the Treatment of Tilapia (Oreochromis niloticus) Infected with Aeromonas hydrophila

This study aims to determine the effect of adding betel leaf extract (Piper betle) to feed and the most effective doses for the treatment of tilapia (Oreochromis niloticus) infected with Aeromonas hydrophila. This study was an experimental study using a completely randomized design trial consisting of 4 treatments and 3 replications. The treatments tested consisted of the control treatment (without giving betel leaf extract), treatment A (giving betel leaf extract 0.40 g/100 g feed), treatment B (giving betel leaf extract 0.60 g/100 g feed), and treatment C (giving betel leaf extract 0.80 g/100 g feed). The data collected includes behavior, morphology, anatomy, growth rate, survival rate, and water quality, including temperature, pH, dissolved oxygen, and ammonia. The results showed that treatment A (giving betel leaf extract 0.40 g/100 g feed) was the best treatment with the fastest healing process of clinical symptoms including behavior and anatomy, positive effect on the internal organs of fish, producing the highest absolute weight with an average of 0.72 g, an average absolute length of 0.35 cm, an average specific weight of 0.55% and a survival percentage with an average of 60%.