Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/5110
Title: | Rate of natural transmission of Marek's disease virus (MDV) to susceptible chickens in the post-challenge period: effect of vaccination with HVT and association with MDV genome count in air | Contributor(s): | Crabb, Jodie R (author); Walkden-Brown, Stephen W (author) ; Baigent, Susan J (author); Smith, Lorraine P (author); Nair, Venugopal (author) | Publication Date: | 2009 | Handle Link: | https://hdl.handle.net/1959.11/5110 | Abstract: | Marek's disease virus (MDV) is transmitted by inhalation of contaminated feather dander released by infected chickens. There is ongoing evolution of MDV to greater virulence. Investigation of the underlying causes requires determination of viral fitness under different conditions, in turn requiring determination of viral transmission rate between chickens. This study investigated the transmission rate of MDV to in contact chickens. MDV was quantified in blood, feather, spleen and dust of infected and HVT-vaccinated and unvaccinated in contact chickens in several treatments over a period of 28 days using real-time PCR. MDV was transmitted to 1 of 8 chickens (12.5%) prior to 12 days post infection (d.p.i.) and to 9/34 (26.5) and 2/34 (5.9%) unvaccinated and vaccinated chickens respectively between 12 and 28 d.p.i. Daily infection rate of uninfected chickens did not increase significantly after 21 d.p.i. MDV load in air increased significantly over time but was not clearly associated with infection rate. | Publication Type: | Conference Publication | Conference Details: | APSS 2009: 20th Annual Australian Poultry Science Symposium, Sydney, Australia, 9th - 11th February, 2009 | Source of Publication: | Proceedings of the Australian Poultry Science Symposium, v.21, p. 184-187 | Publisher: | University of Sydney, Poultry Research Foundation | Place of Publication: | Sydney, Australia | ISSN: | 1034-3466 1034-6260 |
Fields of Research (FoR) 2008: | 070205 Animal Protection (Pests and Pathogens) 070712 Veterinary Virology |
Socio-Economic Objective (SEO) 2008: | 830309 Poultry | Peer Reviewed: | Yes | HERDC Category Description: | E1 Refereed Scholarly Conference Publication | Publisher/associated links: | http://www.vetsci.usyd.edu.au/apss/ |
---|---|
Appears in Collections: | Conference Publication School of Environmental and Rural Science |
Files in This Item:
File | Description | Size | Format |
---|
Page view(s)
1,220
checked on Jan 14, 2024
Download(s)
2
checked on Jan 14, 2024
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.