title: Secretory IgA, a major immunoglobulin in most bovine external secretions.
mesh_terms: D000818:Animals; D000941:Antigens / Q000032:analysis; D001345:Autoradiography; D002247:Carbon Isotopes; D002417:Cattle; D002845:Chromatography; D003126:Colostrum / Q000276:immunology*; D000939:Epitopes
chemical_list: D000941:Antigens; D002247:Carbon Isotopes; D000939:Epitopes