| Autor: |
H Morgan, Scott, Ole, Sorensen, John T Y, Wu, Eva Y W, Chow, Ken, Manninen |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
The Canadian veterinary journal = La revue veterinaire canadienne. 48(4) |
| ISSN: |
0008-5286 |
| Popis: |
A province-wide cross-sectional seroprevalence and agroecological risk factor study of Mycobacterium avium subspecies paratuberculosis (MAP) and Neospora caninum (NC) infection among cattle in 100 cow-calf herds in Alberta was conducted. The seroprevalence of MAP in adult cattle was 1.5% across all herds. Using a widely accepted herd test cutpoint of 2 or more seropositive cows out of 30 animals tested, 7.9% of herds were estimated to be infected (95% confidence interval (CI): 2.3–23.4%). Seroprevalence of MAP differed by agroecological region; specifically, cattle and herds in areas with high soil pH (> 7.0), southern latitudes, and arid climates had a moderately reduced risk of infection (P < 0.10). Seroprevalence of NC infection was 9.7% among adult beef cattle province-wide — these levels also varied by agroecological region — with 91.0% of herds infected overall. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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