Presence and Depletion of Sulfadiazine, Trimethoprim, and Oxytetracycline into Feathers of Treated Broiler Chickens and Impact on Antibiotic-Resistant Bacteria - Archive ouverte HAL Access content directly
Journal Articles Journal of Agricultural and Food Chemistry Year : 2022

Presence and Depletion of Sulfadiazine, Trimethoprim, and Oxytetracycline into Feathers of Treated Broiler Chickens and Impact on Antibiotic-Resistant Bacteria

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Abstract

The valorization of poultry byproducts, like feathers (processed to feather meal), in animal feed could contribute to the presence of veterinary drugs, including antibiotics. An animal study was carried out to study the fate of sulfadiazine, trimethoprim, and oxytetracycline in feathers, plasma, and droppings of broiler chickens. Cage and floor housing, different from current farm practices, were studied. Samples were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A longer presence of antibiotics was observed in feathers compared to plasma, with sulfadiazine being present the most. The internal presence (via blood) and the external presence (via droppings) of antibiotics in/on feathers were shown. Analysis of Escherichia coli populations, from droppings and feathers, highlighted that resistant bacteria could be transferred from droppings to feathers in floor-housed animals. The overall results suggest that feathers are a potential reservoir of antimicrobial residues and could contribute to the selection of antibiotic-resistant bacteria in the environment, animals, and humans.
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anses-03918835 , version 1 (02-01-2023)

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Estelle Dréano, Charlotte Valentin, Jean-François Taillandier, Angélique Travel, Christophe Soumet, et al.. Presence and Depletion of Sulfadiazine, Trimethoprim, and Oxytetracycline into Feathers of Treated Broiler Chickens and Impact on Antibiotic-Resistant Bacteria. Journal of Agricultural and Food Chemistry, 2022, 70 (51), pp.16106-16116. ⟨10.1021/acs.jafc.2c05807⟩. ⟨anses-03918835⟩

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