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Browsing Production Animal Studies by UP Author "Purchase, Cromwell"

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A comparison of the oral application and injection routes using the Onderstepoort Biological Products Fowl Typhoid vaccine, its safety, efficacy and duration of protection in commercial laying hens

Purchase, Cromwell; Picard, J.A.; McDonald, R.; Bisschop, S.P.R. (Shahn) (South African Veterinary Association, 2008-03)

This study was undertaken to establish whether the Onderstepoort Biological Products Fowl Typhoid (OBPft) vaccine registered as an injectable vaccine was effective and safe when administered orally to commercial layers. ...

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