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Salmonella colonisation of laying hens following vaccination with killed and live attenuated commercial Salmonella vaccines
Author(s) -
Atterbury R. J.,
Allen V. M.,
CarriqueMas J. J.,
Davies R. H.
Publication year - 2009
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.165.17.493
Subject(s) - salmonella , colonisation , salmonella enteritidis , vaccination , microbiology and biotechnology , biology , attenuated vaccine , veterinary medicine , virology , colonization , medicine , bacteria , virulence , biochemistry , genetics , gene
The aim of this study was to determine the efficacy of a killed Salmonella vaccine and three live vaccines in preventing caecal colonisation of Hy‐line Brown pullets by Salmonella Enteritidis PT 4. The lowest number of Salmonella ‐positive birds following the largest challenge (10 8 cfu) was recorded for live vaccine 1. However, birds treated with the killed vaccine had a significantly lower number of salmonellae in their caeca compared with both the control group and the other vaccine groups (P<0˙05).