Control of BVDV-infection on common grassland—The key for successful BVDV-eradication in Lower Austria

A bovine viral diarrhea/mucosal disease (BVD/MD) control and eradication program was introduced in Lower Austria in 1996, according to the Swedish model. At present 9800 out of 17,000 herds are part of this program. An important risk factor for BVDV-transmission under local conditions is communal gr...

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Bibliographic Details
Published in:Preventive veterinary medicine 2005-11, Vol.72 (1), p.133-137
Main Authors: Rossmanith, W., Janacek, R., Wilhelm, E.
Format: Article
Language:English
Subjects:
Animal Feed
Animal Husbandry
Animals
Austria
bovine viral diarrhea
Bovine viral diarrhea virus
Bovine Virus Diarrhea-Mucosal Disease - prevention & control
Bovine Virus Diarrhea-Mucosal Disease - transmission
BVDV
BVDV-transmission
Carrier State - transmission
Carrier State - veterinary
Carrier State - virology
Cattle
Commom grassland
disease control programs
disease detection
Eradication
grasslands
grazing
herd health
pastures
persistent infection
Persistently infected animals
Poaceae
risk assessment
Risk Factors
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Summary:A bovine viral diarrhea/mucosal disease (BVD/MD) control and eradication program was introduced in Lower Austria in 1996, according to the Swedish model. At present 9800 out of 17,000 herds are part of this program. An important risk factor for BVDV-transmission under local conditions is communal grazing. Approximately 3–4% of livestock share common pastures, in which susceptible pregnant cattle may be mixed with unrecognised persistently infected (PI) animals. Rules and regulations were defined to allow only herds free from BVDV-infection on to common grassland. At the moment, 5067 herds are certified free from BVDV. The percentage of BVDV-free herds in regions with intensive pasture utilisation is higher (57.3%) than in the other regions (43.0%) of Lower Austria. With a reliable system for identification of PI-animals and a high certainty of prevention of PI-animals on common grassland, the main transmission of BVDV infection can be stopped, even if the animals are derived from infected herds and transiently infected animals cannot be excluded.
ISSN:0167-5877
1873-1716
DOI:10.1016/j.prevetmed.2005.05.012