Koi (Cyprinus carpio) Hatchery techniques: Its performance in BBI Boyolali

Abstract

One type of freshwater ornamental fish favored by the Indonesian community is koi (Cyprinus carpio). Therefore, koi hatchery conducted by farmers is increasing each year. This study reported the performance of koi hatchery activity at the Balai Benih Ikan (BBI), Boyolali, Central Java, which is known as one of the koi aquaculture sites in Indonesia. The working method used in this study was a descriptive method. The koi hatchery activities showed a fecundity of 420,000 eggs with a hatching rate of 85.71%. The spawned eggs hatch within 3-5 days after the spawning process. Growth sampling on larvae was carried out 4 times during the hatchery period. The larvae on day 21 have an average length of 2.78 cm while on day 28 had an average length of 3.32 cm while the survival rate reached 75%.