Abstract :
This study aims to determine the effect of giving betel leaf extract on hatchability of African catfish eggs. African catfish eggs used are 1500 eggs, each jar is filled with 100 fish eggs with a volume of 5 liters of water, and 15 jars are used. Eggs are hatched for 16 hours in a jar filled with water with a mixture of betel leaf extract. The research design used a completely randomized design method (RDM) with 5 treatments and 3 replications, namely P_0: control (without giving betel leaf extract), P_1: Giving betel leaf extract at a dose of 0.35 gr / l, P_2: Giving betel leaf extract at a dose 0.40 gr / l, P_3: Provision of betel leaf extract at a dose of 0.45 gr / l, P_4: Provision of betel leaf extract at a dose of 0.50 gr / l. The results showed that the highest egg hatchability was found in the P_4 treatment using a dose of 0.50 gr / l at 92%, while the lowest egg hatchability was found in P_0 treatment without betel leaf extract by 52%.