Zhai, L Enhancement of humoral immune responses to inactivated Newcastle disease and avian influenza vaccines by oral administration of ginseng stem-and-leaf saponins in chickens. [electronic resource] - Poultry science Sep 2011 - 1955-9 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0032-5791 Standard No.: 10.3382/ps.2011-01433 doi Subjects--Topical Terms: Administration, OralAnimalsChickensDrug InteractionsImmunity, Humoral--drug effectsInfluenza in Birds--prevention & controlMaleNewcastle Disease--prevention & controlPanax--chemistryPlant Extracts--chemistryPlant Leaves--chemistryPlant Stems--chemistrySaponins--administration & dosageViral Vaccines--immunology