Recovery of inoculated Salmonella from poultry feed containing furazolidone.

It was determined that the presence of furazolidone, a common feed additive, prevented detection of Salmonella in feed samples. Artificially inoculated Salmonella were not recovered from feed samples containing furazolidone when buffered peptone broth (BP) was used as an enrichment medium, but Salmonella were recovered from all feed samples containing furazolidone when thiol broth was used as a substitute for BP.