Ahmad, J Protection against hemorrhagic enteritis and Newcastle disease in turkeys by embryo vaccination with monovalent and bivalent vaccines. [electronic resource] - Avian diseases - 485-91 p. digital Publication Type: Journal Article ISSN: 0005-2086 Subjects--Topical Terms: AnimalsAntibodies, Viral--analysisAviadenovirus--immunologyChick EmbryoDrug CombinationsEnteritis--immunologyNewcastle Disease--immunologyNewcastle disease virus--immunologyPoultry Diseases--immunologyTurkeys--immunologyViral Vaccines--administration & dosage