Median EminenceHematopoietic Stem CellsPortal VeinPortal SystemPituitary GlandGonadotropin-Releasing HormoneHypertension, PortalLiver CirculationPortacaval Shunt, SurgicalPortal PressureSplanchnic CirculationMesenteric VeinsHepatic ArteryPortasystemic Shunt, SurgicalLiverPortographyHepatic VeinsIntestinal AbsorptionLiver CirrhosisSplenorenal Shunt, SurgicalEsophageal and Gastric VaricesNadololRegional Blood FlowVenous PressureLiver Cirrhosis, AlcoholicLymphSheepIntestinesDogsAbsorptionLiver RegenerationBlood Flow VelocityDigestionSwineHemodynamicsIleumAnimal FeedIntestinal MucosaSplenic VeinIntestine, SmallRats, Inbred StrainsGlucoseBile Acids and SaltsRats, Sprague-DawleyTime FactorsInsulinRats, WistarBlood GlucoseGastrointestinal Hemorrhage