The Effectiveness of Vaccines in Gurame (Osphronemus goramy) and Challenged Aeromonas hydrophila

Abstract Gurame ( Osphronemus goramy ) is one of the most commodities cultivated by the people in Indonesia, but there is a production constraint due to gurame that attacked Motile Aeromonas Septicemia (MAS) disease caused by Aeromonas hyrdophila . One of the most effective precautions that can be used is vaccination. Based on the above description, it is necessary to research the effectiveness of Aeromonas hydrophila vaccine in gurame. This research aims to determine the effect of Aeromonas hydrophila vaccine and the amount of bacterial density in an effective vaccine for preventing MAS on gurame ( Osphronemus goramy ). This study used an experimental method with a complete lyrandomized design consisting of 5 treatments and 4 replications. Parameters observed were survival rate (SR) and antibody titre of carp. The results of this research indicate that giving Aeromonas hydrophila vaccine to gurame can give an effect for increasing the antibody titer and survival rate (SR). The results showed that the amount of 104 CFU/ml of bacterial density in the Aeromonas hydrophila vaccine was the effective vaccine density used as the MAS prevention and showed a high survival rate of 95%. The conclusion of this research is by giving Aeromonas vaccine can prevent MAS and the density of Aeromonas hydrophila vaccine 104 CFU/ml.