The indole test was carried out as follows: Three (3) pure colonies of Salmonella were inoculated into 5 ml of peptone water in bijou Bottles and incubated at 37 o C for 24 h. Few drops of Kovac's reagent was added to the 24 h culture of the suspected Salmonella, Formation of red ring at the top indicates an indole positive reaction as described by Cheesbrough (2006) .