An independent scientific assessment of last year's pilot badger culls in parts of Gloucestershire and Somerset has concluded that they were not effective.
The BBC's Pallab Ghosh reports on both sides of the cull row
Analysis commissioned by the government found the number of badgers killed fell well short of the target deemed necessary, the BBC understands.
And up to 18% of culled badgers took longer than five minutes to die, failing the test for humaneness.
The pilot culls were intended to limit the spread of TB in cattle.
They were carried out to demonstrate the ability to combat bovine TB though a controlled reduction in the population of local badgers.
Contracted marksmen, paid for by farming groups, were employed to shoot the animals at night.
The Independent Expert Panel was appointed by the Department for Environment, Food and Rural Affairs (Defra) to help ministers evaluate the effectiveness, humaneness and safety of the Gloucestershire and Somerset pilots.
Prof Rosie Woodroffe, a scientist at the Zoological Society of London, said that the panel's "findings show unequivocally that the culls were not effective and that they failed to meet the humaneness criteria.
"I hope this will lead to the Secretary of State (Owen Paterson) to focus on other ways of eradicating TB in cattle," she told BBC News.
Robin Hargreaves, president of the British Veterinary Association (BVA), said it was the BVA that had taken a lead in calling for the controlled shooting to be tested and critically evaluated before it was rolled out.
"We are unable to comment in detail on the findings of the IEP until we have seen the report," he told the BBC. "But if these figures are true then they would certainly raise concerns about both the humaneness and efficacy of controlled shooting.
"We have always stated that if the pilots were to fail on humaneness then BVA could not support the wider roll out of the method of controlled shooting."
The pilots were authorised by Defra and licensed by Natural England.
From BBC News-Sci/ Environment
