I am graduated from University Montpellier II , Aquaculture. I have been working in aquaculture production since more than 20 years (marine and freshwater finfish culture include).Working mostly in tropical aquaculture since 2005 . I joined STP Toba Tilapia since 2015 as Head of the tilapia culture; we are facing many challenges with several bacterial s diseases in Toba lake.We are looking for a good vaccination scheme that can sustain our production, we use no antibiotics during the grow-out culture. I am also concern with  fish welfare that can be beneficial for both producers and consumers.