# Welfare of Animals Act (Northern Ireland) 1972, Paragraph 7


Castration—
(i) by the application of a rubber ring or other constricting device to a calf, goat, pig or lamb before the second week of life;
(ii) by any other means—
(a) in the case of a calf or goat, before the age of two months;
(b) in the case of a pig, before the age of eight days; and
(c) in the case of a lamb, before the age of three months.

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