Experimental infection of vaccinated slaughter ostriches with virulent Newcastle disease virus
dc.contributor.author | Gerdes, Gertruida Hermanna | |
dc.contributor.author | Olivier, A. | |
dc.contributor.author | Williams, R. | |
dc.contributor.editor | Verwoerd, Daniel Wynand | |
dc.contributor.upauthor | Verwoerd, Daniel Wynand | |
dc.date.accessioned | 2012-12-12T08:58:07Z | |
dc.date.available | 2012-12-12T08:58:07Z | |
dc.date.created | 2012 | |
dc.date.issued | 1997 | |
dc.description | The 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.abstract | A 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.citation | Verwoerd, 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.issn | 0330-2465 | |
dc.identifier.uri | http://hdl.handle.net/2263/20750 | |
dc.language.iso | en | en_US |
dc.publisher | Published by the Agricultural Research Council, Onderstepoort Veterinary Institute | en_US |
dc.rights | © ARC-Onderstepoort (original). © University of Pretoria. Dept of Library Services (digital). | en_US |
dc.subject | Veterinary medicine | en_US |
dc.subject | Experimental infection | en_US |
dc.subject | Newcastle disease (ND) | en_US |
dc.subject | Vaccinated ostriches | en_US |
dc.subject | Virulent | en_US |
dc.subject.lcsh | Veterinary medicine -- South Africa | |
dc.title | Experimental infection of vaccinated slaughter ostriches with virulent Newcastle disease virus | en_US |
dc.type | Article | en_US |