Salmonella: Code of Practice for the Control of (PB2202)

Section II: Storage of Raw Materials

3. Storage Facilities

3.1 All raw materials should be stored in facilties which protect against the enterance and harbouring of rodents, birds and domestic animals and control measures should be regulatory applied to exclude them.

3.2 Section 1 of the Wildlife and Countryside Act 1981 makes it an offence to take, damage or destroy the nest of any wild bird whilst the nest is in use or being built, or to take measures to disturb certain wildlife when they are already nesting, building an nest or are near a nest containing eggs or young birds. Where possible, proofing should, therefore, be carried out before nesting commences. For most bird species, however an exception to Section 1 of the Act is provided where action is necessary for the purpose of preserving public health and safety or preventing spread of disease (Section 4 of the Act which is applicable here). This exception is not available in the case of certain birds, such as the barn owl, listed in Schedule 1 of the Act (which is reproduced in the Appendix of this Code) except under licence from the Agriculture Secretary of State. These licences would only be granted in very exceptional circumstances. Furthermore,  in cases where the building in question is known to be used as a nesting site for barn owls, action outside the nesting period should be taken only after consultation with ADAS or other organisations experienced in conservation, such as the Barn Owl Trust, Waterleat, Ashburton in devon and the Hawk and Owl Trust, c/o Zoological Society of London, Reagent's park, London, NW1 4RY (please enclose a stamped Addressed envelope for further information). It may then still be possible to continue to permit barn owls to use the site e.g. through an 'attic' or through the provision of a nest box.

3.3 Under the Conservation (Natural Habitats & c.) Regulations 1994 it is an offence to damage or destroy a breeding site or nesting place of a European protected species of animal, including all types of bat, or deliberately to disturb any such animal. This includes the obstruction of access to any structure or place which any such wild animal uses for shelter or protection (Section 9 of the Wildlife and Countryside Act 1981 also refers). For bats, English Nature has a statutory duty to provide advice and must be consulted in all cases before any action is taken.

3.4 Raw materials should not be stored in close proximity to animal housing or animal waste, including manure. If this is necessary, particular attention should be given to keeping storage facilities free of invertebrate and rodent pests as far as is practicable, and to maintain adequate separation between stored products, animals and their waste. In these circumstances, the following measures should be applied:

  • Raw materials should not be stored in an area previously used to house animals or store their waste unless it has first been throughly cleaned to emove all organic material, disinfected and dried.
  • The control treatment required should be carried out by trained personnel and should not contaminate goods in the store.
  • The storage facility should be clearly separated from any areas used to house livestock or their products and waste. All personnel entering the storage facility should put on clean overalls or disinfect outer clothing when entering from areas of the premises used to house livestock or store their waste.

3.5 The storage facility should be soundly constructed of durable materials and fully enclosed. Floors and walls should be impervious to liquids. There should be sufficient clean hard standing at the store enterance to minimise tracking of mud, effluent and other wet material into the store. Doors should be soundly constructed, closefitting and, where at all possible, kept closed other than for personnel entry or for the inward or outward movement of materials and goods. If it is necessary for ventilation purposes to open doors then suitable precautions should be taken to ensure this does not increase the risk of vermin and wild birds gaining entry.

3.6 Storage bays/areas should be organised to permit suitable and effective separation and identification of the various raw materials and other goods.

3.7 The store should be maintained in a generally clean and orderly condition with adequate and effective draining. In particular, storage facilities used for raw materials should be subject to a regular cleaning programme, including complete emptying, at appropriate intervals.

3.8 Raw materials should be kept dry at all times since salmonella needs moisture to multiply. Any leakage or condensation in areas/bays used for raw materials should be prevented or promptly corrected. Good ventilation is important to minimise condensation.

3.9 Raw materials which have been rejected, recalled or returned because of salmonella contamination should be placed in separate and adequately segregated storage pending treatment to eliminate contamination so as to preclude contamination of other raw materials. Any store which contains raw materials contaminated with salmonella should be decontaminated before use for other products.

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