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Cutting Antibiotic Resistance Genes in Poultry Litter
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…
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38 of 39 Antibiotics Failed: Klebsiella in Fish Farms
Thirty-eight drugs out of thirty-nine did nothing. A 2026 study of farmed bullfrogs in central China ran a full susceptibility panel against a single isolate pulled from a sick animal, and exactly one compound came back with a susceptible reading. Polymyxin B, 17 mm zone. Ampicillin through meropenem, all resistant or intermediate. The bug was Klebsiella pneumoniae. If you run a fish or amphibian operation, that name probably has never come up in a meeting. Which is sort of the point. Multidrug-resistant Klebsiella pneumoniae in aquaculture stopped being a story borrowed from human medicine the moment it turned up in a production pond, killed animals under controlled conditions, and showed…
