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NC3Rs: National Centre for the Replacement Refinement & Reduction of Animals in Research

Breeding and colony management advice service

For answers to more specific questions about colony management or breeding difficult strains, email

Please include 'Breeding and colony management' in the subject line, to ensure your email reaches the correct team. Staff from the NC3Rs will anonymise your query, and forward it to a relevant expert from the breeding and colony management working group. Any advice given is the opinion of the specific expert contacted and is not intended to be exhaustive.

Your query will be treated as confidential and will be processed in accordance with current UK data protection legislation.

The information you provide will be processed by the NC3Rs solely for the purpose of answering your query. Your information will be retained in accordance with the UKRI’s retention policy.

Information on how we use personal data can be found in the UK Research and Innovation Privacy Notice.