Abstract :
Nila (oreochormis sp) be bream. In looking after nila cannot quit of pest attack risk and disease, disease which at most groaning nila is bacterium Aeromonas, Bacterium Aeromonas hydrophilla often epidemic in Southeast Asia hitherto. In usage of chemical drug it is of course many its negativity effects. Crop sirih has many chemistry contents having the character of as antimicrobial among others tannin.
This research aim to know leaf filtrate influence (Piper bettle. L) to level of fish life (Oreochormis sp) infection by bacterium Aeromonas hydrophilla, and knows concentration of leaf filtrate (Piper bettle. L) best for level of fish life (Oreochormis sp) infection by bacterium Aeromonas hydrophilla. Parameter applied in this research is level of life from fish which has been infection bacterium Aeromonas Hydrophilla, hereinafter is dosed with applies leaf filtrate sirih. This research type is by using RAL, which consist of each 4 times restating with 5 treatment that is 0%; 1,5%; 2,5%; 3,5% and 4,5%. This research executed in Balai Benih Ikan Punten Batu, from date 15 December to 29 December 2008.
Result of research indicates that there are giving influences of leaf filtrate (Piper bettle. L) to level of fish life (Oreochormis sp) infection by bacterium Aeromonas hydrophilla. From result of test analysis BNT that treatment of leaf filtrate sirih (PC) with concentration (3,5%) gives level of highest life with average value 8 a life fish tail. Treatment of leaf filtrate sirih (Protactinium) with concentration (1,5%) gives level of low life with average value 4,5 and treatment of control
(Polonium) with concentration (0%) leaf filtrate sirih or control doesn't give level of life at all, altogether death. Thereby inferential that with concentration of 3,5% giving of leaf filtrate (Piper bettle. L) haves an in with level of fish life (Oerochormis sp) infection by bacterium Aeromonas hydrophilla.