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Distribution of sulfamethazine, chlortetracycline and tylosin in manure and soil of Canadian feedlots after subtherapeutic use in cattle

Canadian FeedlotsAnimal AgricultureEngineeringEnvironmental EngineeringAnimal NutritionAnimal ScienceLivestock ProductionAgricultural EconomicsSubtherapeutic UseLivestock HealthAnimal FeedEnvironmental ToxicologyPublic HealthAnimal ProductionAnimal Waste Management