Journal of the American Veterinary Medical Association 219(10): 1426-1431
2001
ISSN/ISBN: 0003-1488
PMID: 11724183
DOI: 10.2460/javma.2001.219.1426
446 calves in a longitudinal observational study were analysed to evaluate the risk of bovine viral diarrhoea virus (BVDV) infection between birth and 9 months of age for dairy replacement heifers raised under typical dry-lot management conditions. The calves were randomly selected from 2 dairies that used killed and modified-live BVDV vaccines.