Predictive values of serum and bulk milk sampling for the presence of persistently infected BVDV carriers in dairy herds

G. Zimmer, W. Schoustra, E.A.M. Graat

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)

Abstract

The aim of this study was to examine whether it is possible to predict the presence of persistently infected (PI) animals with bovine viral diarrhoea virus on dairy farms in The Netherlands, based on a few blood samples of the herd, possibly in combination with a bulk milk test for antibodies. In 25 herds with, and 24 herds without, PI animal(s) the probabilities of obtaining at least x antibody positive animals out of a sample of n animals were calculated, with n varying from 3 to 7 and values for x that were considered were n, n - 1 to n - x. This probability, among animals 9-24 months old, ranged from 0.70 to 0.96 for herds with PI animals and from 0.13 to 0.37 for herds without. Using the result of bulk milk testing in addition did not add to the prediction. It was concluded that, due to the high percentage and large variation of antibody positive animals in herds without PI animals, it is not possible to predict the presence of PI animal(s) in dairy herds in The Netherlands using these methods.
Original languageEnglish
Pages (from-to)75-82
JournalResearch in Veterinary Science
Volume72
DOIs
Publication statusPublished - 2002

Fingerprint Dive into the research topics of 'Predictive values of serum and bulk milk sampling for the presence of persistently infected BVDV carriers in dairy herds'. Together they form a unique fingerprint.

Cite this