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Assessment of strategies to control BVDV spread in a dairy herd using computer simulation
Anne-France Viet1, Christine Fourichon, Henri Seegers
1Unit of Animal Health Management, Veterinary School, INRA, BP 40706, 44307 Nantes Cedex 03, France. af.viet@vet-nantes.fr
Abstract:
The efficiency of a test-and-cull programme to control BVDV spread within a dairy herd was assessed using a stochastic model. A single virus introduction by a non-PI dam carrying a PI foetus was simulated in a typical western-France dairy herd. Herd monitoring in test-and-cull programme enabled us to detect virus spread within 1 year after introduction in 87% of the replications. The test-and-cull programme reduced the length of the virus persistence. The extent of infection was moderately reduced.
