aUnion Bretonne des Groupements de Défense Sanitaire, BP 110, 56003 VANNES Cedex 03, France bUnit of Animal Health Management, Veterinary School, INRA, BP 40706, 44307 Nantes Cedex 03, France
A collective zoo-sanitary control scheme for BVDV has been implemented in Brittany in successive steps since 1998. Prior evaluation of prevalence and dynamics of infection through bulk-milk ELISA showed that 40% of the dairy herds were likely to be free of BVDV but that, in the long term, no improvement was to be expected without control of new infections. The next step was a test-and-cull programme for PI animals in ELISA positive herds. Ten percentage of the herds were found to have at least one PI animal. The incidence decreased during this step. To lower costs of testing traded animals, a database was developed to collect all the available information to trace animals already known to be non-PI.
This article was published in Preventive Veterinary Medicine, 72, Alain Jolya, Christine Fourichonb and François Beaudeaub, Description and first results of a BVDV control scheme in Brittany (western France), 209-213, Copyright Elsevier 2005.