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dc.creatorDacić, M.
dc.creatorResanović, Radmila
dc.creatorRašić, Zoran
dc.creatorValčić, Miroslav
dc.creatorMilovanović, A.
dc.creatorVelhner, Maja
dc.date.accessioned2020-06-03T14:25:12Z
dc.date.available2020-06-03T14:25:12Z
dc.date.issued2018
dc.identifier.issn1792-2720
dc.identifier.urihttps://vet-erinar.vet.bg.ac.rs/handle/123456789/1623
dc.description.abstractThe infectious bursal disease virus (IBDv) is widespread in poultry flocks all around the world. Various biotypes have emerged and because of that, adequate management practices and vaccination of chicks are of paramount importance for the protection against field strains. One day old Lohmann Brown chicks were vaccinated with intermediate vaccines and the recombinant VAXXITEK HVT-IBDv vaccine formulation, and challenged at 48 days of life with the very virulent IBDv (vvIBDv) strain CH/99. The best protection (100%) was achieved with the recombinant vaccine administered by the subcutaneous or intramuscular route at a day old, while intermediate and intermediate plus vaccines protected 80% of birds from clinical symptoms. The highest bursa body ratio (5.33, 3.50 and 4.12) was accomplished in non-vaccinated and non-challenged birds and birds vaccinated with the VAXXITEK HVT-IBDv vaccine. The recombinant VAXXITEK HVT-IBDv vaccine has provided protection for commercial chicks against challenge with the vvIBDv strain in this experiment. Under field conditions, additional vaccination is possibly needed with supplementary application of live attenuated vaccines. However, the recombinant vector vaccines are providing significant aid against clinical signs and immunosupression caused by the vvIBDv.en
dc.publisherHellenic Veterinary Medical Soc, Athens
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31071/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourceJournal of The Hellenic Veterinary Medical Society
dc.subjectpoultryen
dc.subjectIBDven
dc.subjectintermediate vaccinesen
dc.subjectrecombinant vaccinesen
dc.subjectchallengeen
dc.titleEfficacy of recombinant VAXXITEK HVT-IBDv vaccine against very virulent Infectious bursal disease virus (vvIBDv) challenge in layer chicks: A pilot studyen
dc.typearticle
dc.rights.licenseBY-NC-SA
dcterms.abstractВалчић, Мирослав; Дацић, М.; Велхнер, Маја; Миловановић, A.; Ресановић, Радмила; Рашић, Зоран;
dc.citation.volume69
dc.citation.issue1
dc.citation.spage823
dc.citation.epage830
dc.citation.other69(1): 823-830
dc.citation.rankM23
dc.identifier.wos000432327500015
dc.identifier.fulltexthttp://veterinar.vet.bg.ac.rs/bitstream/id/7013/effima18.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_veterinar_1623
dc.type.versionpublishedVersion


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