Management Factors Related to Salmonella Shedding by Dairy Heifers
Open Access
- 1 November 1995
- journal article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 78 (11) , 2464-2472
- https://doi.org/10.3168/jds.s0022-0302(95)76874-6
Abstract
In a national survey of dairy operations with > or = 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 sheddings, as was calving in an individual animal area within a building.Keywords
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