# Welfare of Animals Act (Northern Ireland) 1972, Paragraph 6


Tail docking—
(i) in the case of dogs, before their eyes are open;
(ii) in the case of pigs, before the eighth day of life;
(iii) in the case of lambs either—
(a) by the application of a rubber ring or other constricting device before the second week of life; or
(b) by any other means before the age of three months.

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Source: https://www.legislation.gov.uk/apni/1972/7/schedule/1/paragraph/6 (the official version)
Page: https://openlegislation.uk/welfare-of-animals-act-northern-ireland-1972/schedule-1/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.