A field trial of live avian infectious vaccines in replacement breeding stock.
D000818:Animals; D000906:Antibodies / Q000032:analysis; D001991:Bronchitis / Q000276:immunology / Q000662:veterinary*; D002645:Chickens; D007117:Immunization, Secondary; D009500:Neutralization Tests; D011201:Poultry Diseases / Q000517:prevention & control*; D014611:Vaccination / Q000662:veterinary; D014765:Viral Vaccines
D000906:Antibodies; D014765:Viral Vaccines