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| Bidokhti, M.R.M.; Tråven, Madeleine; Fall, Nils; Emanuelson, Ulf; Alenius, Stefan. |
| The prevalence of antibodies to bovine coronavirus (BCV) and bovine respiratory syncytial virus (BRSV) infections was studied in 20 conventional and 20 organic dairy herds The organic farms had produced 'certified' milk for at least 2 years On two occasions, with a 1-year interval, 699 serum samples from 624 peri-parturient cows were tested by ELISA for antibodies to BCV and BRSV. Accompanying data relating to the sampled animals were collected in order to identify potential factors associated with increased antibody prevalence. The antibody prevalence was high at both sampling times with approximately 85% and 80% of animals positive for antibodies to BCV and to BRSV, respectively Conventional herds had a significantly higher mean antibody prevalence to... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Health and welfare. |
| Ano: 2009 |
URL: http://orgprints.org/25065/1/vj%20182%20436_440%20Bidokhti.pdf |
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