TEKNIK IMOTILISASI IKAN NILA (Oreochromis niloticus)MENGGUNAKAN EKSTRAK DAUNDAN BUAH PETAICINA(Leucaena leucocephala)

Abstract

Immotilization of live fish can be done in two ways, namely by lowering the temperature by using anesthetics, both natural and synthetic chemicals. Chinese petai leaf and fruit extracts are one of the potential natural ingredients to be used as anesthetics because they contain various bioactive components including saponins, tannins, flavonoids and steroids / triterpenoids. The research phase consisted of three stages, namely searching for anesthetic doses, fish alkimatisation, producing stunning media, fish stunning, and water quality testing consisting of DO, temperature, pH, ammonia and tilapia blood glucose test. The best Chinese petai leaf extract is at a concentration of 25% with a time of onset (fainting) 167.39 minutes and recovery time (conscious) is 22.36. The best Chinese petai extract was at a concentration of 25% with a time of onset (fainting) 188.30 minutes and the longest (conscious) recovery time of 19.28 minutes. Graduation rates for fish at all three concentrations have a 100% survival rate.