Effectiveness of Ketapang (Terminalia cattapa L.) Extract Against Avian Pathogenic Eschericia coli (APEC) Infections in Layer Performance

This study aimed to determine the activity of Ketapang extract (Terminalia cattapa L.) in layers infected with APEC. In vitro that was conducted dilution methods using at 5%, 10%, 15%, 20%, 25% and 30% concentrations. vivo by randomly dividing 20 into five treatment groups, four per group. The chickens (except group P0−) were APEC aged 24 weeks. Then, according divided groups one week. said treatments are P0− (uninfected unadministered extract), P0+ (infected P1, P2, P3 administered 20% concentrations, respectively). data from layers’ performance analyzed ANOVA Duncan’s test. method (MIC MBC) exhibited antibacterial ability against 5% dose. administration improved APEC, 10% dose showing best result. summary, about concentration can serve as an agent showed results