Journal article
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, Vol.27(1), pp.6-17
2015
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.
Details
- Title
- Estimation of nasal shedding and seroprevalence of organisms known to be associated with bovine respiratory disease in Australian live export cattle
- Authors/Creators
- S.J. Moore (Author/Creator) - Murdoch UniversityM.A. O'Dea (Author/Creator)N. Perkins (Author/Creator) - Murdoch UniversityA.J. O'Hara (Author/Creator) - Murdoch University
- Publication Details
- Journal of Veterinary Diagnostic Investigation, Vol.27(1), pp.6-17
- Publisher
- SAGE Journals
- Identifiers
- 991005541015007891
- Copyright
- © 2014 The Author(s)
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- 1 Clinical & Life Sciences
- 1.248 Sexually Transmitted Infections
- 1.248.1656 Pasteurella Multocida
- Web Of Science research areas
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science