It comes under The Disease Control (England) Order 2003 orThe Disease Control (Wales) Order 2003. Part 2 article 6 permits moves during standstill viz :
Notwithstanding articles 4 and 5, animals may be moved off premises during the standstill period if
(a)the movement is one specified in Schedule 1;......
Schedule 1 permits
Movement for slaughter 2. The movement of an animal direct to a slaughterhouse.
3. The movement of a pig to a market for pigs intended for immediate slaughter.
Can't directly quote the equivalent scottish reg
So yes you can !