Could be done whether in or out of the EU...
Is the UK stopping the 'export' of live animals from say Wales to England?
What's the difference?
Brexiteers fail to realise/accept that all countries within the EU are sovereign ones...
They can make their own laws if they choose to do so!
So your next false brexit 'benefit' offering is?
Nonsense reflection of your ignorance on the subject
Same as your ignorance on halal / kosher meat in schools