Oral tolerance.
D000818:Animals; D000917:Antibody Formation; D000941:Antigens / Q000008:administration & dosage*; D002645:Chickens; D003911:Dextrans / Q000008:administration & dosage; D004435:Eating; D004912:Erythrocytes / Q000276:immunology; D006462:Hemolytic Plaque Technique; D006736:Horses; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007108:Immune Tolerance; D007070:Immunoglobulin A / Q000096:biosynthesis; D007075:Immunoglobulin M / Q000096:biosynthesis; D051379:Mice; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D012756:Sheep; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
D000941:Antigens; D003911:Dextrans; D007070:Immunoglobulin A; D007075:Immunoglobulin M