From 6 April 2007 in England, and 28 March in Wales, the mutilation of animals was banned under the Animal Welfare Act 2006, with certain exemptions set out in the 2007 and the 2008 (Amendment) Regulations. “Mutilation” covers any procedure that involves interference with the sensitive tissues or bone structure of an animal other than for therapeutic purposes (medical treatment).
Certain procedures are exempt from the ban because of long-term welfare or management benefits. There are some specific requirements on how many of the procedures are performed, and all must be carried out in a way that keeps pain to a minimum, under hygienic conditions, and in accordance with good practice.

