title: The immune response of hormonally bursectomized chickens to Syngamus trachea infection.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002060:Bursa of Fabricius / Q000502:physiology*; D002645:Chickens; D011201:Poultry Diseases / Q000276:immunology*; D017206:Strongylida Infections / Q000276:immunology*; D013739:Testosterone / Q000008:administration & dosage
chemical_list: D013739:Testosterone