# The Welfare of Farmed Animals (England) Regulations 2007, Paragraph 40


If weaners and rearing pigs unfamiliar with one another have to be mixed—
(a) this must if possible be done before weaning or up to one week after weaning, or otherwise when the pigs are as young as possible; and
(b) they must be provided with adequate opportunities to escape and hide from other pigs.

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Source: https://www.legislation.gov.uk/ukdsi/2007/9780110773612/schedule/8/paragraph/40 (the official version)
Page: https://openlegislation.uk/draft-welfare-of-farmed-animals-england-regulations-2007/schedule-8/paragraph-40
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.