The influence of Cassia alata L. leaf extract on egg hatchability and survival of larvae silver barb, Barbonymus gonionotus

Abstract The leaf extract of C. alata showed antifungal activity by inhibiting five pathogenic fungi. Saprolegnia sp. attack was one type fungus that inhibits the hatchability eggs. leaves also can inhibit growth fungi on gouramy objective this study to determine effect and optimal concentration Cassia L. hatching rate, time, prevalence, survival silver barb eggs ( Barbonymus gonionotus ) infected with This research conducted at Balai Budidaya Ikan Krueng Bate, Aceh Barat Daya District in August 2020. Data were analyzed using a completely randomized design ten treatment levels two replications. concentrations namely 0, 10, 20, 30, 40, 50, 60, 70, 80, 90 ppm. fertilized then treated immersing extract. result ANOVA test had significant (P <0.05) best 60