Experimental infection of vaccinated slaughter ostriches with virulent Newcastle disease virus

dc.contributor.authorGerdes, Gertruida Hermanna
dc.contributor.authorOlivier, A.
dc.contributor.authorWilliams, R.
dc.contributor.editorVerwoerd, Daniel Wynand
dc.contributor.upauthorVerwoerd, Daniel Wynand
dc.date.accessioned2012-12-12T08:58:07Z
dc.date.available2012-12-12T08:58:07Z
dc.date.created2012
dc.date.issued1997
dc.descriptionThe articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat X Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.en_US
dc.description.abstractA virulent Newcastle disease virus (NDV) isolate from an outbreak in commercial poultry, with virulence indices of MDT = 47-48 h; IVPI = 2,17 and ICPI = 1,8; was used to inoculate 10x vaccinated (standard poultry vaccines) as well as 10x unvaccinated slaughter ostriches via intratracheal, ocular and nasal routes, in a controlled environment. All unvaccinated ostriches developed clinical signs (mainly respiratory); two of them died while the other eight recovered. No vaccinated ostriches developed any clinical signs. All remaining (18) ostriches were slaughtered 14 d after the last mortality. Virulent NDV could be re-isolated from the dead birds, but not from organs, muscle (fresh), muscle (24 h chilled) , gastro-instestinal tract, bone-marrow or respiratory system taken from the slaughtered ostriches. It is suggested that it would be extremely unlikely that the international trade in ostrich meat could act as a mechanism for spreading virulent NDV from endemic to non-endemic parts of the world.en_US
dc.identifier.citationVerwoerd, DJ, Gerdes, GH, Olivier, A & Williams, R 1997, 'Experimental infection of vaccinated slaughter ostriches with virulent Newcastle disease virus’. Onderstepoort Journal of Veterinary Research, vol. 64, no. 3, pp. 213-216.en_US
dc.identifier.issn0330-2465
dc.identifier.urihttp://hdl.handle.net/2263/20750
dc.language.isoenen_US
dc.publisherPublished by the Agricultural Research Council, Onderstepoort Veterinary Instituteen_US
dc.rights© ARC-Onderstepoort (original). © University of Pretoria. Dept of Library Services (digital).en_US
dc.subjectVeterinary medicineen_US
dc.subjectExperimental infectionen_US
dc.subjectNewcastle disease (ND)en_US
dc.subjectVaccinated ostrichesen_US
dc.subjectVirulenten_US
dc.subject.lcshVeterinary medicine -- South Africa
dc.titleExperimental infection of vaccinated slaughter ostriches with virulent Newcastle disease virusen_US
dc.typeArticleen_US

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