Here is an interesting article about the culling of badgers in Southern Ireland.
I am still of the opinion that culling has little to do with the decline in the number of cases of bovine TB. In Ireland a whole raft of other measures were introduced at the same time, such as a much more draconian movement of livestock regime.
The Irish government has stated that their preferred control method would be to vaccinate. but at the moment it is not cost-effective.
Perhaps all the large animal welfare charities and government should, instead of fighting each other, work together to raise enough funds to vaccinate.