# The Poultry Laying Flocks (Testing and Registration etc.) Order 1989, Paragraph 2


In the case of birds which are more than 15 weeks of age, the samples to be taken shall comprise:–
(a) composite samples of fresh faeces, each composite sample being made up of individual samples of fresh faeces, each weighing not less than 1 gram, taken from a number of sites selected at random from the house in which the birds are kept or, where birds have free access to more than one house on any premises, from each group of houses in which birds are kept on those premises; or
(b) cloacal swabs taken at the rate of one swab from each bird (selected at random), such samples being taken (in either case) on one occasion when the birds are between 15 and 26 weeks of age and at 12 week intervals thereafter until they die or are culled.

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Source: https://www.legislation.gov.uk/uksi/1989/1964/schedule/1/paragraph/2 (the official version)
Page: https://openlegislation.uk/poultry-laying-flocks-testing-and-registration-etc-order-1989/schedule-1/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.