This article is from the source 'bbc' and was first published or seen on . It will not be checked again for changes.

You can find the current article at its original source at http://news.bbc.co.uk/go/rss/-/1/hi/sci/tech/7493846.stm

The article has changed 6 times. There is an RSS feed of changes available.

Version 0 Version 1
Benn confirms TB cull rejection Benn confirms TB cull rejection
(10 minutes later)
The government will not issue licences to cull badgers to prevent cattle TB in England, Hilary Benn has confirmed.The government will not issue licences to cull badgers to prevent cattle TB in England, Hilary Benn has confirmed.
In a Commons statement, the environment secretary said that while a large-scale cull could improve the situation, it could also make the problem worse.In a Commons statement, the environment secretary said that while a large-scale cull could improve the situation, it could also make the problem worse.
The National Farmers' Union (NFU) is taking legal advice on the decision, which was leaked to BBC News on Friday.The National Farmers' Union (NFU) is taking legal advice on the decision, which was leaked to BBC News on Friday.
About 4,000 herds were affected by the disease last year, mainly in the south-west of England.About 4,000 herds were affected by the disease last year, mainly in the south-west of England.
The government based its decision on advice from the Independent Scientific Group, established to commission and review research on the issue. Rather than culling, vaccination will form a cornerstone of bovine TB policy, and the government is to invest £20m into research.
The ISG concluded that culling would not be an economic solution to the problem, although a subsequent analysis led by the government's former chief scientific advisor Sir David King came down in favour of culling. The government based its decision on advice from the Independent Scientific Group which it established to review research on the issue.
The ISG concluded that culling would not be an economic solution to the problem, as did the Environment and Rural Affairs select committee.
A subsequent analysis led by the government's former chief scientific advisor Sir David King came down in favour of culling.
Better or worse
Mr Benn recalled that the UK Randomised Badger Culling Trial (RBCT) concluded that proactive culling - attempting to wipe out badgers across large swathes of countryside - could reduce disease incidence inside the cull zone, but increased it around the edges of the zone.
"I have decided that while such a cull might work, it might also not work," he said.
"It could end up making the disease worse if it was not sustained over time or delivered effectively."
Some landowners would be reluctant to allow culling on their land, he acknowledged, making effective delivery of the strategy less likely.
The RBCT concluded that reactive culling - killing badgers in the area around an outbreak that had already been identified - made things worse.
"It may not be what people would assume would be the answer to the question, but it is the answer to the question," he said.