Intestinal SecretionsJejunumIntestinal MucosaIntestinesCholera ToxinIleumImmunoglobulin A, SecretoryEnterotoxinsIntestinal AbsorptionPrecipitinsIntestine, SmallChloridesElectrolytesImmunoglobulin ACholeraWater-Electrolyte BalanceBacterial ToxinsSodiumTheophyllineDiarrheaColonBiological TransportP-GlycoproteinCyclic AMPRabbitsRats, WistarSerotoninImmunoglobulin GBodily SecretionsSecretory RateEdwardsiella tardaEdwardsiella ictaluriSeasonsEnterobacteriaceae InfectionsFish DiseasesJapanFlounder