XylazineMedetomidineAdrenergic alpha-AgonistsAcepromazineAnesthetics, DissociativeKetamineZolazepamHypnotics and SedativesTiletamineAnesthetics, CombinedVeterinary DrugsAdrenergic alpha-2 Receptor AgonistsButorphanolAnestheticsThiazinesMethotrimeprazineSurgery, VeterinaryImidazolesGuaifenesinAnesthesiaRespiratory RateAdrenergic alpha-AntagonistsPhysiological ProcessesReceptors, Adrenergic, alphaReceptors, Adrenergic, alpha-2Injections, IntramuscularHorsesDogsMidazolamImmobilizationRespirationDexmedetomidineBlood Gas AnalysisRandom AllocationDose-Response Relationship, DrugEuthanasia, AnimalNurses, MaleAnesthesia Recovery PeriodReceptors, Biogenic AmineHeart RateAnalgesicsCardiovascular SystemDioxanesAnesthesia, Intravenous