In fact all they have to do is sit tight and wait for the compensation. The second alternative is vaccination. Again there is no technical problem. There are millions of shots of it stored in the European Union for use. But it's expensive.
Farmers have to pay for the vaccine.
But if animals are slaughtered, we the taxpayer foot the bill for compensation. In other words it's all about money again. The other problem about vaccination is 'the British'. That's not you and me, of course. We never get consulted about matters of food safety and animal welfare.