Changes made by Artificial Insemination (Cattle and Pigs) (Fees) 1988
S.I. 1988/2269
Made to Artificial Insemination (Cattle and Pigs) (Fees) 1987
3 changes. All changes made by Artificial Insemination (Cattle and Pigs) (Fees) 1988
From legislation.gov.uk's record of changes, the official one: see it there.