Role of the bursa of Fabricius in IgG and IgM production in the chicken: evidence for the role of a non-bursal site in the development of humoral immunity.

Animals Antibodies/analysis Antibody Formation Antigens Bone Marrow Examination Bursa of Fabricius/drug effects,growth & development,immunology,radiation effects Cecum/immunology Chick Embryo Chickens Erythrocytes/immunology Hemagglutination Tests Ileum/immunology Immunoelectrophoresis Immunoglobulin G/analysis Immunoglobulin M/analysis Immunoglobulins/biosynthesis Radiation Effects Sheep Spleen/immunology Testosterone/pharmacology Ultracentrifugation

Antibodies Antigens Immunoglobulin G Immunoglobulin M Immunoglobulins Testosterone