Epidemiology and Management of BVDV in Rangeland Beef Breeding Herds in Northern Australia
Abstract
:1. Introduction
2. Prevalence
3. Transmission
4. Clinical Presentation
5. Economic Impact
6. Management Strategies
Funding
Acknowledgments
Conflicts of Interest
References
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Animal Class | Year | No. of Management Groups | Group Seroprevalence Category * | ||
---|---|---|---|---|---|
Low | Moderate | High | |||
Heifers | 2009 | 42 | 31.0% | 35.7% | 33.3% |
2011 | 25 | 24.0% | 48.0% | 28.0% | |
Cows # | 2009 | 62 | 21.0% | 38.7% | 40.3% |
2011 | 60 | 15.0% | 50.0% | 35.0% |
Animal Class | Year | No. of Management Groups | Frequency of Recent Infection * | ||
---|---|---|---|---|---|
Low | Moderate | High | |||
Heifers | 2009 | 36 | 41.7% | 30.6% | 27.8% |
2011 | 22 | 63.6% | 27.3% | 9.1% | |
Cows # | 2009 | 57 | 42.1% | 42.1% | 15.8% |
2011 | 54 | 68.5% | 27.8% | 3.7% |
BVDV Seroprevalence * | Mean % P4M | 95% Confidence Interval | |
---|---|---|---|
Lower | Upper | ||
Low | 57.3 A | 43.8 | 70.9 |
Moderate | 43.2 AB | 26.2 | 60.1 |
High | 34.3 B | 17.0 | 51.6 |
Prevalence * of Recent BVDV | Mean % Calf Wastage | 95% Confidence Interval | |
---|---|---|---|
Lower | Upper | ||
Low | 11.45 A | 6.51 | 16.39 |
Moderate | 12.08 A | 7.00 | 17.16% |
High | 20.84 B | 12.49 | 29.19 |
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McGowan, M.; McCosker, K.; Fordyce, G.; Kirkland, P. Epidemiology and Management of BVDV in Rangeland Beef Breeding Herds in Northern Australia. Viruses 2020, 12, 1063. https://doi.org/10.3390/v12101063
McGowan M, McCosker K, Fordyce G, Kirkland P. Epidemiology and Management of BVDV in Rangeland Beef Breeding Herds in Northern Australia. Viruses. 2020; 12(10):1063. https://doi.org/10.3390/v12101063
Chicago/Turabian StyleMcGowan, Michael, Kieren McCosker, Geoff Fordyce, and Peter Kirkland. 2020. "Epidemiology and Management of BVDV in Rangeland Beef Breeding Herds in Northern Australia" Viruses 12, no. 10: 1063. https://doi.org/10.3390/v12101063