When government was flush with money, then all sorts of bodies used to produce registers - typically with far more columns than legally required ! But with cutbacks these stopped. Some trading standards probably still have stuff in a cupboard, but since they were released from having to keep the government computers updated, they have largely forgotten about pigs.
When electronic movements came in, local government was told that e-aml was sufficient and we didn't need to keep paper records anymore. But unfortunately most local councils didn't get the message, and the website link I had to the missive disappeared in some website re-org, so there is no officialdom to quote. However technically it satisfies the legal requirement. However we suggest that you still keep a 'book'
It can be in any form, and kept on computer as long as you can show them a printed copy within a reasonable period of them arriving - ie minutes. They will not look at your computer screen, they want written/printed.
The actual legislation is The Pigs (Records, Identification and Movement) Order 2011 2011 part 2 section 5 which states :
5.—(1) Within 36 hours of the movement of a pig on or off a holding the keeper must complete the form in the Schedule.
(2) Once a year a keeper must record the maximum number of pigs normally on the holding and the actual number of pigs on the holding at that date.
(3) The keeper must keep these records for at least 3 years.
The 'form' in the schedule says
Name and address of the person keeping the record
Date of movement
The identification number (1)or temporary mark
Number of pigs
Holding from which moved
Holding to which moved
and that's it