TracheaTracheal NeoplasmsCattleTracheal DiseasesTracheal StenosisFood TechnologyGuinea PigsMuscle, SmoothAnimal HusbandryUnited States Department of AgricultureMeat-Packing IndustryBreedingBronchiMuscle RelaxationRandom AllocationLarynxMeat ProductsIntubation, IntratrachealMuscle ContractionFood PackagingAnimal Nutritional Physiological PhenomenaRespiratory SystemMucusTracheotomyBronchoscopyWeight GainPostpartum PeriodLungPoaceaeHistamineRumenEpitheliumFatsFood MicrobiologyEstrus SynchronizationAirway ObstructionDigestionAbattoirsCookingTrimethylsilyl CompoundsBody WeightLeast-Squares AnalysisTracheitisSRS-ABody CompositionMelengestrol AcetateInsemination, ArtificialSilageConsumer SatisfactionExocrine GlandsFood PreservationMethacholine CompoundsPregnancyBronchial DiseasesFood InspectionDystociaDietEatingNeurokinin APostmortem ChangesPregnenedionesTracheostomyBronchial NeoplasmsRefrigerationSubstance PTime FactorsTasteDrug ImplantsLactationParasympatholyticsProgesterone CongenersParasympathetic Nervous SystemVagus NerveTracheoesophageal FistulaLaryngeal NervesFood ContaminationElectric StimulationAtropineDinoprostDietary ProteinsLaryngeal CartilagesAcetylcholineMucous MembraneTachykininsMucociliary ClearanceAnimals, SucklingFiber Optic TechnologyEstrus DetectionIsoproterenolZea maysVacuumFood-Processing IndustryDose-Response Relationship, DrugProgesteroneMuscle, SkeletalAporphinesReproductionCapsaicinAirway ResistanceRespiratory Mucosa