Provision of fermented WP tended (P = 0.069) to reduce the total coliform bacteria in the GIT digesta when compared to the control diet. Reduction of coliform bacteria has been observed previously when feeding FLF to pigs. The concentration of lactic acid was higher (P < 0.05) in the stomach of piglets fed W. viridescens-fermented WP than in piglets of the other dietary treatments,