UK farmer here. We're often cited as justification for BST vs GMT, but it's complete nonsense. We don't care! In fact, the discontinuity is a nuisance to us in many of the same ways as it is to city people.

Time-dependent natural processes don't reconfigure themselves when some administrative body decides to shuffle the names of various times of day. If my cows want breakfast at 6am and you shift the clocks forward, they'll start shouting for Food Man(tm) at 5am instead.