Changes to Artificial Insemination (Cattle and Pigs) (Fees) 1987
S.I. 1987/390
Made by Artificial Insemination (Cattle and Pigs) (Fees) 1988
3 changes. All changes to Artificial Insemination (Cattle and Pigs) (Fees) 1987
From legislation.gov.uk's record of changes, the official one: see it there.