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National Institute on Aging > Research > Scientific Resources > Aged Rodent Colonies Handbook
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Available Strains

Inbred Rats:

Fischer 344 (F344)
Brown Norway (BN)

Hybrid Rats:
F344xBN F1 (F344BN)
Inbred Mice:

BALB/cBy
CBA
C57BL/6
DBA/2

Hybrid Mice:

CB6F1 (BALB/cBy x C57BL/6)
B6D2F1 (C57BL/6 x DBA/2) - reduced to entries every 4th month

Caloric Restricted Rats:

Available in 2009
F344 (males only)
F344BN F1 (males only)

Caloric Restricted Mice:

C57BL/6
B6D2F1 (males only)


We strive to have animals available out to at least the 50% survival age, but availability fluctuates due to changes in demand. An idea of the oldest available for each strain is available at www.nia.nih.gov/ResearchInformation/ScientificResources/OldestRodentColonies.htm, but the ages listed on this website are up-dated monthly and are intended only as an approximation. Contact the order desk (rodents@nia.nih.gov) for availability of specific strain/gender/ages.

  • Contact Information
  • Available Strains
  • Ordering Instructions
  • Eligibility Criteria for Use of the NIA Aged Rodent Colonies
  • Price Schedule - Aging Colonies - NIA Grantees
  • Price Schedule - Aging Colonies - Non-NIA Funded Grantees
  • Caloric Restricted Colony
  • Location of Colonies
  • Shipment of Animals
  • Animal Replacement Policy
  • Optional Services
  • Colony Monitoring and History
  • Barrier Environmental Information
  • References On The Use Of Rodents In Aging Research
  • Strain Survival Information
  • Downloadable Forms
  • Oldest Ages Available in NIA Aged Rodent Colonies
  • NIA Rodent Colony Health Summaries

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    Page last updated Oct 20, 2009