| Autor: |
Paul, Baillargeon, Juan C, Arango-Sabogal, Vincent, Wellemans, Gilles, Fecteau |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
The Canadian veterinary journal = La revue veterinaire canadienne. 58(4) |
| ISSN: |
0008-5286 |
| Popis: |
The objective of this study was to determine if precolostral blood samples are useful to detect apparent fetal infections with bovine viral diarrhea (BVD) and infectious bovine rhinotracheitis (IBR) viruses. A convenience sample of 317 sera from 50 Canadian herds was used in the study. Antibody level was measured using 2 commercial IBR and BVD ELISA kits. Precolostral status of sera was confirmed on 304 samples using serum gamma-glutamyl transferase activity. Postcolostral serum samples yielded a higher proportion of positive results to IBR (OR = 86; 95% CI: 17.8 to 415.7) and BVD (OR = 199.3; 95% CI: 41.7 to 952.3) than did precolostral samples. All positive precolostral serum samples (n = 7 of 304) originated from calves born to vaccinated cows. Postcolostral positive serum samples (n = 11 of 13) originated mostly (60%) from calves born to non-vaccinated cows. Precolostral serum sampling can detect apparent fetal infections in a herd. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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