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Carcinogenicity TestsRats, Inbred F344Mutagenicity TestsMutagensCarcinogensDose-Response Relationship, DrugNeoplasms, ExperimentalMice, Inbred StrainsWeight GainAnimal FeedBody WeightSwineWeaningRandom AllocationEatingCattleDrug Administration ScheduleAdministration, OralMeatDietAnimal Nutritional Physiological PhenomenaTime FactorsAnimal HusbandryDouble-Blind MethodBreedingBody CompositionTreatment OutcomeHousing, AnimalDigestionSeasonsDietary SupplementsPoaceaeBovine Respiratory Disease ComplexEnergy IntakeDietary ProteinsTylosinLitter SizeFeeding BehaviorActivities of Daily LivingHybrid VigorEnergy MetabolismGrowth HormoneFood AdditivesPrince Edward IslandZea maysProspective StudiesFood AnalysisOrgan SizeZeranolAnalysis of VarianceFish ProductsPregnancyNutritional RequirementsArea Under CurveRegression AnalysisBlood Urea NitrogenDrinkingAdipose TissueRetrospective StudiesAnimals, SucklingCattle DiseasesDrug ImplantsDrug UtilizationLactationSheepDrug Therapy, CombinationNitrogenCrosses, GeneticFuransSoybeansFood, FortifiedRumenAgonistic BehaviorSilageMonensinRecords as TopicDesulfovibrionaceae InfectionsSwine DiseasesReproductionMilkWoolCerealsMuscle DevelopmentAnti-Bacterial AgentsFecesRisk FactorsHalf-LifeLinear ModelsMotor ActivityAnalgesics, OpioidLiverTrenbolone AcetateWeatherFloors and FloorcoveringsRadiation DosageUnited StatesBlood GlucoseHumidityEnvironmental ExposurePhosphorus, Dietary