Eradication of chronic respiratory disease from breeder farm flocks.
D000818:Animals; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D001947:Breeding; D009174:Mycoplasma; D011201:Poultry Diseases / Q000517:prevention & control*; D012140:Respiratory Tract Diseases / Q000662:veterinary*
D000900:Anti-Bacterial Agents