Walk into a duck house on a dry-litter system and the floor looks like nothing much. Bedding, feathers, droppings, feed dust. It gets raked, topped up and mostly ignored until the next flock goes in. It is also one of the biggest reservoirs of resistance biology on the whole operation. A 2026 study that sequenced the virome of duck litter from four commercial farms has now put numbers on how much of that load you can strip out. Antibiotic resistance genes in poultry litter fell in a clean, repeatable order across four management groups, and the group that came out best is not the one most people would put money…