Biochar Reduces Campylobacter in Free-range Chickens in Danish Study

A field study by researchers at the Technical University of Denmark showed that utilizing biochar as a feed additive for free-range chickens achieved an 80% reduction in campylobacter. Campylobacter is naturally present bacterium in the chicken gut microbiome, but it can contaminate the meat and make humans sick from poor kitchen hygiene or under-cooked meat. “Reducing bacterial levels in chickens can make a significant difference in public health. Our findings highlight biochar’s potential—particularly for free-range and organic chickens, where controlling bacteria is more challenging than in conventionally raised poultry,” says senior researcher Brian Lassen from DTU National Food Institute. The research also tested organic acids added to the chickens’ drinking water, and found them effective at reducing campylobacter in the short term, indicating that timing would be particularly important in utilizing this method.
Related ATTRA topic area: Biochar