Field studies with Mycoplasma synoviae.
D000372:Agglutination Tests; D000400:Air Sacs; D000818:Animals; D001982:Bronchial Diseases / Q000175:diagnosis / Q000235:genetics / Q000276:immunology / Q000382:microbiology / Q000662:veterinary; D002645:Chickens; D004467:Economics; D006385:Hemagglutination Inhibition Tests; D009174:Mycoplasma / Q000302:isolation & purification; D009175:Mycoplasma Infections / Q000175:diagnosis / Q000235:genetics / Q000276:immunology / Q000382:microbiology / Q000662:veterinary*; D011201:Poultry Diseases / Q000175:diagnosis / Q000235:genetics / Q000276:immunology / Q000382:microbiology