title: [Latent infections in laying hen farms; experimental infection in farm chickens of various ages].
mesh_terms: D000367:Age Factors; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D002353:Carrier State / Q000662:veterinary*; D002645:Chickens; D005260:Female; D009174:Mycoplasma / Q000276:immunology; D009175:Mycoplasma Infections / Q000635:transmission / Q000662:veterinary*; D011201:Poultry Diseases / Q000209:etiology* / Q000635:transmission
chemical_list: D000907:Antibodies, Bacterial
vernacular_title: Latente Infektionen in Legehennenbeständen; Infektionsversuche mit Tieren aus Beständen mit mehreren Altersgruppen.