now changed to using the Cattle Tracing System data as their data source for cattle, as is already done in England and Wales. UK cattle figures from 2007 have been revised accordingly. On average, this revision has resulted in an increase of 0.3% on the UK’s previously published figures for total cattle and calves. Scotland have also revised their survey imputation methodology, and this has caused smaller changes in the figures for pigs and sheep. See their methodological notes on page 7 for further explanation