TECHNIQUE FOR BREDDING CATFISH (CLARIAS GARIEPINUS) AT THE FISHERIES TRAINING AND EXTENSION CENTER (BPPPP) BANYUWANGI

Catfish (Clarias gariepinus) Hatchery is a crucial stage in aquaculture to ensure the availability of high-quality fry.The Banyuwangi Fisheries Training and Extension Center (BPPP) has developed effective hatchery techniques, including broodstock maintenance, broodstock selection, spawning, egg incubation, and larval rearing.Male and female broodstock are kept in separate ponds at a density of 2-3 fish per square meter and fed high-protein pellets (30-35%) to accelerate gonad maturation.Broodstock selection is based on physical and gonadal maturity, where females with large, soft abdomens and males with reddish genital papilla, showing healthy and active conditions, are selected.Spawning is carried out naturally using fiberglass tanks measuring 110 cm in length, 80 cm in width, and 50 cm in height, with *kakaban* substrate for egg attachment.After spawning, the broodstock are removed to prevent cannibalism.Egg incubation lasts for 24-36 hours at a temperature of 28-30C.Larvae are reared in controlled tanks at a density of 500-700 fish/m and fed with natural food (*tubifex* worms) and high-protein formulated feed.Water quality management includes monitoring pH (6.5-8), dissolved oxygen (5 mg/L), and temperature (28-31C).To prevent pests and diseases, probiotics in the form of salt water solution and papaya leaf solution are administered at a dosage of 2.5 liters.After 20 days, the catfish fry are harvested and transferred to nursery ponds.