Herd-level ELISA seroprevalence of bovine viral diarrhea antibodies in bulk-tank milk in Chilean dairy herds

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)237-241
Journal / PublicationPreventive Veterinary Medicine
Volume60
Issue number3
Publication statusPublished - 28 Aug 2003
Externally publishedYes

Abstract

Our objective in this cross-sectional study was to determine the seroprevalence in 1996 of commercial dairy herds in central Chile positive to bovine viral diarrhea (BVD) virus, by the detection of antibodies in bulk-tank milk samples. Samples were obtained from 501 dairy farms (∼50,000 cows) from the Metropolitan, VI, VII and VIII regions of Chile. An indirect ELISA was used to detect BVD antibodies. An absorbance (A450) ≥ 0.55 was considered positive. The apparent proportion of positive herds ranged from 71.2 to 83% by region and did not differ by region. We concluded that exposure to BVD was widely distributed in the central area of Chile in 1996. © 2003 Elsevier B.V. All rights reserved.

Research Area(s)

  • Bulk-tank, BVD, Chile, Dairy herd, ELISA, Prevalence

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