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Badger culling is unlikely to be a cost-effective way of helping control cattle TB in Britain, according to research published February 10 in PLoS ONE. The authors of the study, from Imperial College London and the Zoological Society of London, say their findings suggest that the benefits of repeated widespread badger culling, in terms of reducing the incidence of cattle TB, disappear within four years after the culling has ended.
Bovine tuberculosis (bTB) is a disease in cattle that has a serious financial impact on farmers in Britain, as infected animals have to be slaughtered. In 2008, 2,738 herds were infected with bTB, costing the government over £100 million. Wild badgers [Taxidea taxus, a nocturnal mammal of the weasel family] can become infected with bTB and are known to transmit the infection to cattle. Because of this, UK governments have tested various means of badger culling to control bTB infection in cattle over the past 30 years.
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