VagotomyVagotomy, TruncalVagotomy, Proximal GastricPylorusDuodenal UlcerDumping SyndromeGastroenterostomyGastric JuiceVagus NervePyloric AntrumPostgastrectomy SyndromesStomachGastrectomyDrainagePentagastrinGastric EmptyingTruncus Arteriosus, PersistentGastrinsGastric AcidGastrointestinal MotilityGastric DilatationTruncus ArteriosusDuodenumGastric FistulaCesium IsotopesStomach UlcerPeptic Ulcer PerforationSecretory RateAtropineGastric Acidity DeterminationGlucose Solution, HypertonicJejunumCholecystokininMethodsMethenamineDogsBackThoraxRecurrenceFoodReflexPostoperative ComplicationsAbomasumReticulumBethanechol CompoundsDiarrheaMechanicsFollow-Up StudiesDilatationStomach DiseasesDenervationStomach, Ruminant