JAX® Mice Availability Information (Standard Supply Level Definitions)

We continually review and adjust inventory levels of our strains to keep pace with researchers' evolving needs. To help you plan your experiments, we have assigned each JAX® Mice strain a “standard supply level” to indicate the approximate quantities of mice that typically can be shipped from that colony during a fixed period of time (e.g., days or weeks).

Readily Available

Sized to accommodate large orders.


Available Now

Sized to accommodate mid-sized orders. 


Repository Live

Repository Live represents about 1800 unique mouse models across most therapeutic areas. Breeding colonies fluctuate in size depending on current demand. If a strain is not immediately available, an estimated lead time will be provided in 2-3 business days. General considerations:

  • Mice are typically delivered at 4-8 weeks of age
  • No age requests are accepted for breeder pairs or when ordering fewer than 5 mice per strain
  • If cohorts of mice (5 or more of one gender per strain) are needed at a specific age range for experiments, we will do our best to accommodate your request

Repository Live strains have one of four availabilities:

  • 1 week average lead time for up to 30 mice
  • 0–2 week average lead time for 10 or more mice with age range
  • 2–4 week lead time for up to 4 mice at 4-8 weeks old and age requests are not accepted
  • 3–6 week average lead time depending on quantity and age requests are not accepted

Please refer to the strain datasheet for the average lead time for a specific strain of interest.

Available for Pre-order

Colony under development; pre-orders strongly encouraged.  Estimated availability date can change if demand increases during development or if strain exhibits less than typical reproductive performance. Shipments will be prioritized by order date. Contact Customer Service to place an order.


Available for Registering Interest

Not available for ordering yet; register interest to be informed of changes in availability or Contact Customer Service for more information. 


Availability Varies

Availability is determined by The Jackson Laboratory scientist holding the strain or availability has recently changed for that strain. Contact Customer Service for more information.


Cryorecovery Available

JAX® Mice strains with limited and infrequent demand are maintained in a cryopreserved state. Typically mice are recovered in 10-14 weeks. Contact Customer Service to place an order or for more information.


Transferred to KOMP at UC Davis

Strains transferred to the KnockOut Mouse Project (KOMP) Repository at UC Davis. For more information, please visit the KOMP website. https://www.komp.org/

Cryorecovery details

Please refer to the cryorecovery descriptions below for specific information for a recovery. Please note that if a strain needs progeny testing, the cost of progeny testing is NOT included in this base cryorecovery fee.

For strains that do NOT require progeny testing

We will fulfill your order by providing at least two carriers for each strain ordered. The total number, gender and genotypes provided will vary, although typically 8 or more animals are provided.

  • Please check genotypes which will be recovered.  While the genotypes of all animals produced will be communicated to you prior to scheduling shipment, the genotypes of animals provided may not reflect the mating scheme and genotypes described in the strain description.
  • Animals are typically ready to ship in 11-14 weeks.  If a second recovery is required to produce the minimum number of animals, then delivery time would increase to approximately 25 weeks.
  • If we fail to produce animals of the correct genotype, you will not be charged.
  • We cannot guarantee the reproductive success of mice shipped to your facility.  If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary.

For strains that DO require progeny testing

A molecular assay to genotype this strain is not available.  We will fulfill your order by providing at least two untested males and two untested females (two pairs). The total number of animals provided, their gender and genotype will vary, although typically 8 or more mice are provided.

  • Untested animals typically are available to ship between 10 and 14 weeks from the date of your order. If the first recovery attempt is unsuccessful, a second recovery will be done, extending the overall recovery time to approximately 25 weeks.
  • Progeny testing may be required – If recovered animals do not display a phenotype,  progeny testing will be required. This testing involves breeding the recovered animals and assessing the phenotype of the offspring in order to identify animals carrying the mutation of interest.
  • Please note that identified pairs may not reflect the mating scheme utilized by The Jackson Laboratory prior to cryopreservation of the strain. Mating schemes are sometimes modified for successful cryopreservation.
  • We cannot guarantee the reproductive success of mice shipped to your facility. If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary.

For strains requiring specialized phenotyping

At least two untested males and two untested females (two pairs) will be recovered from cryopreserved stocks and will require specialized phenotyping in order to identify animals carrying the mutation of interest. We do not perform the phenotyping for this strain. Untested animals typically are available to ship between 10 and 14 weeks from the date of your order. We will ship you all of the recovered mice (a minimum of two pair, typically eight or more). We cannot guarantee that you will receive or be able to identify animals of the phenotype of interest. Please be advised that a new order and cryorecovery fee will be necessary to recover additional mice, if needed. Because recovery efficiency and viability can vary, a second cryorecovery sometimes may be required in order to complete this order, which may extend the time for order completion to 25 weeks. If this situation occurs, we will notify you of the delay.

Please note that identified pairs may not reflect the mating scheme utilized by The Jackson Laboratory prior to cryopreservation of the strain. Mating schemes are sometimes modified for successful cryopreservation.

Please contact Customer Service for more information: Tel: 1-800-422-6423 (from U.S.A., Canada and Puerto Rico only) or 1-207-288-5845 (from any location). The Jackson Laboratory cannot guarantee the reproductive success of mice shipped to your facility. If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary. 

JAX Breeding Services can recover any cryopreserved strain of interest to establish a dedicated supply colony from which we can contractually supply you with greater quantities of mice according to your requirements. For more information, please contact JAX® Services, Tel: 1-800-422-6423 (from U.S.A., Canada or Puerto Rico only) or 1-207-288-5845 (from any location), or request a quote using our online form.

Contact Us

orderquest@jax.org

1.800.422.6423 (US, Canada & Puerto Rico)

1.207.288.5845 (International)

1.207.288.6150 (Fax)