title: Natural antibody to sheep erythrocytes in bursectomized chickens.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002060:Bursa of Fabricius / Q000502:physiology*; D002642:Chick Embryo; D002645:Chickens; D004912:Erythrocytes; D006386:Hemagglutination Tests; D006460:Hemolysin Proteins / Q000032:analysis; D006462:Hemolytic Plaque Technique; D007104:Immune Adherence Reaction; D012756:Sheep / Q000276:immunology; D013154:Spleen / Q000276:immunology*
chemical_list: D006460:Hemolysin Proteins