Scientists at the Agricultural Research Service in College Station, Texas, have discovered that sodium chlorate fed in low doses to pigs and cattle before slaughter selectively kills the pathogens Salmonella typhimurium and E. coli 0157:H7.

The scientists developed an animal model showing that sodium chlorate reduces these harmful bacteria in the animal's intestinal tract. The
sodium chlorate has a reaction with Salmonella and E.coli, but does not harm beneficial bacteria within the animal's system.

In laboratory studies, 45 weaned pigs were fed as much as 0.04 grams of sodium chlorate per kilogram of body weight after being inoculated
with Salmonella. Within 16 hours, the treatment produced a 150-fold reduction in the number of pathogenic cells in the pig's intestine.á