[On protective vaccination against avian encephalomyelitis].
D000818:Animals; D002645:Chickens; D004660:Encephalitis / Q000662:veterinary*; D007112:Immunity, Maternally-Acquired; D011201:Poultry Diseases / Q000276:immunology*; D014611:Vaccination
Zur Schytzimpfung gegen Aviäre Encephalomyelitis.