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Improved diagnosis of reproductive disease in cattle

​Sensitive and specific molecular assays for the improved diagnosis of bovine campylobacteriosis, trichomoniasis, ephemeral fever and leptospirosis were extensively evaluated using spiked clinical specimens, infection trials, multicentre testing and by screening 400 field samples.  For bovine venereal diseases and leptospirosis, 3 case study herds were repeatedly sampled to determine the impact of these pathogens on herd fertility and reproductive outcome.  An unexpectedly higher prevalence of Campylobacter fetus subspecies venerealis prompted a preliminary investigation of virulence factors in field isolates.  The results suggest that less pathogenic strains may exist in the bull prepuce and further research is required to confirm this observation to determine the consequences on venereal disease.  The impact of these improved diagnostic tools will permit the implementation of appropriate management tools to minimise losses due to herd reproductive diseases.

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3.8MB 01/06/2006

This page was last updated on 12/11/2014

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