The epithelium of the bursa of Fabricius and survival in a natural environment.
D000818:Animals; D000917:Antibody Formation; D002060:Bursa of Fabricius / Q000276:immunology* / Q000601:surgery / Q000637:transplantation; D002470:Cell Survival; D002645:Chickens / Q000254:growth & development / Q000276:immunology; D004847:Epithelial Cells; D004848:Epithelium / Q000276:immunology; D013997:Time Factors; D014182:Transplantation, Autologous