Estimation of nasal shedding and seroprevalence of organisms known to be associated with bovine respiratory disease in Australian live export cattle

Moore, S. Jo, O'Dea, Mark A., Perkins, Nigel and O'Hara, Amanda J. (2015) Estimation of nasal shedding and seroprevalence of organisms known to be associated with bovine respiratory disease in Australian live export cattle. Journal of Veterinary Diagnostic Investigation, 27 1: 6-17. doi:10.1177/1040638714559741


Author Moore, S. Jo
O'Dea, Mark A.
Perkins, Nigel
O'Hara, Amanda J.
Title Estimation of nasal shedding and seroprevalence of organisms known to be associated with bovine respiratory disease in Australian live export cattle
Journal name Journal of Veterinary Diagnostic Investigation   Check publisher's open access policy
ISSN 1040-6387
1943-4936
Publication date 2015-01-27
Year available 2015
Sub-type Article (original research)
DOI 10.1177/1040638714559741
Open Access Status Not Open Access
Volume 27
Issue 1
Start page 6
End page 17
Total pages 12
Place of publication Thousand Oaks, CA United States
Publisher Sage Publications
Language eng
Formatted abstract
The prevalence of organisms known to be associated with bovine respiratory disease (BRD) was investigated in cattle prior to export. A quantitative reverse transcription polymerase chain reaction assay was used to detect nucleic acids from the following viruses and bacteria in nasal swab samples: Bovine coronavirus (BoCV; Betacoronavirus 1), Bovine herpesvirus 1 (BoHV-1), Bovine viral diarrhea virus 1 (BVDV-1), Bovine respiratory syncytial virus (BRSV), Bovine parainfluenza virus 3 (BPIV-3), Histophilus somni, Mycoplasma bovis, Mannheimia haemolytica, and Pasteurella multocida. Between 2010 and 2012, nasal swabs were collected from 1,484 apparently healthy cattle destined for export to the Middle East and Russian Federation. In addition, whole blood samples from 334 animals were tested for antibodies to BoHV-1, BRSV, BVDV-1, and BPIV-3 using enzyme-linked immunosorbent assay. The nasal prevalence of BoCV at the individual animal level was 40.1%. The nasal and seroprevalence of BoHV-1, BRSV, BVDV-1, and BPIV-3 was 1.0% and 39%, 1.2% and 46%, 3.0% and 56%, and 1.4% and 87%, respectively. The nasal prevalence of H. somni, M. bovis, M. haemolytica, and P. multocida was 42%, 4.8%, 13.4%, and 26%, respectively. Significant differences in nasal and seroprevalence were detected between groups of animals from different geographical locations. The results of the current study provide baseline data on the prevalence of organisms associated with BRD in Australian live export cattle in the preassembly period. This data could be used to develop strategies for BRD prevention and control prior to loading.
Keyword Bovine coronavirus
Bovine herpesvirus 1
Bovine parainfluenza virus 3
Bovine respiratory disease
Bovine respiratory syncytial virus
Bovine viral diarrhea virus
Cattle
Histophilus somn
Live export
Mannheimia haemolytica
Mycoplasma bovis
Pasteurella multocida
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Veterinary Science Publications
 
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Created: Thu, 31 Mar 2016, 00:42:03 EST by Nigel Perkins on behalf of School of Veterinary Science