Abstract
In a national survey of dairy operations with ≥30 milking cows, fecal samples from 6861 preweaned dairy heifer calves on 1063 operations were tested for Salmonella. One hundred forty-five (2.1%) of the fecal samples from 79 (7.4%) of the farms tested positive for Salmonella. A multivariate logistic regression model revealed that medicated milk replacer and hay fed to dairy heifers from 24 h of age until weaning were associated with a reduced risk of Salmonella shedding, as was calving in an individual animal area within a building.
Original language | English (US) |
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Pages (from-to) | 2464-2472 |
Number of pages | 9 |
Journal | Journal of Dairy Science |
Volume | 78 |
Issue number | 11 |
DOIs | |
State | Published - 1995 |
Bibliographical note
Copyright:Copyright 2017 Elsevier B.V., All rights reserved.
Keywords
- Salmonella sp.
- dairy calves
- risk factors