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Pig Journal Volume: 56
Publication date: November 2005

Proceedings Section

POST-WEANING MULTISYSTEMIC WASTING SYNDROME (PMWS) IN DENMARK - THE SITUATION TO DATE
P. Baekbo

Abstract
Post-wasting Multisystemic Wasting Syndrome (PMWS) was first diagnosed in Denmark in 2000. In April 2005, Denmark had 541 confirmed cases of PMWS. This corresponds to a prevalence of approximately 10 per cent of all sow herds. However, the estimated real prevalence is 17 per cent. The PMWS-affected herds are widespread, with the highest prevalence in the most pig dense areas. Recorded PMWS cases are based on clinical signs in the herd and on laboratory tests (histopathology). Post-wasting Multisystemic Wasting Syndrome is mainly seen among weaners and gives high mortality and reduced growth rate. The productivity of finishers in affected herds also seems to be reduced. The options for controlling PMWS are based on changes in management aimed at reducing stress on pigs, reducing potential transmission of pathogens between pigs and of ensuring a high level of hygiene. Research on the aetiology and control of PMWS has had high priority during the last five years.

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