Generally, about six to nine months; a number of factors
affect the total time, including:
- time to obtain information about the candidate strain;
- time to conduct the review;
- time for the Donating Investigator to provide the
necessary documents and ship the mice;
- time to import, genotype and cryopreserve the strain.
Once a strain is accepted and all information provided, the MMRRC facility
assigned to preserve and distribute the strain must acquire
the strain from the Donating Investigator. Usually only a few
mice are provided, and the time can vary considerably. In
order to minimize pathogen transfer and colony contamination,
the mice must be rederived. Afterwards, the mice must be bred
to a sufficient colony size to allow cryopreservation. For a
live colony, the colony must be expanded to a level
sufficient to support distribution.