EFFECT OF BURSECTOMY ON THE DEVELOPMENT OF APPENDIX IN CHICKEN

It is well known that bursa of Fabricius in birds is the central lymphoid organ of B lymphocytes.How about the relationship between the appendix and the bursa of Fabricius is unknown.In order to determine whether the B lymphocytes come from bursa of Fabricius,the development of B lymphocytes is studied by means of bursectomy after hatching and acid α naphthyl acetate esterase staining.The results suggested that B lymphocytes in appendix mainly come from the bursa of Fabricius.Compare to the non bursectomized chicken,fewer B lymphocytes and germ center are in the appendix of bursectomized chicken.However,further study about the B lymphocyte differentiation in appendix is needed.