National Institute on Aging > Research > Scientific Resources > Aged Rodent Colonies Handbook
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Animal Replacement Policy

The NIA will provide no-cost replacement or credit for animals that are dead on arrival or die within 48 hours of arrival. Replacements will be of the same date of birth as originally shipped. If animals are determined to be ill or injured at arrival and a replacement or credit is requested, a veterinary report must be provided. All animals are maintained in barrier conditions under a health monitoring program and are assumed to be in good health when leaving the NIA colonies. The development of tumors is normal in these animals with aging, therefore the presence of tumors is not an acceptable criteria for replacement. Likewise, a scruffy or unkempt appearance is often normal for very aged animals and is not reason for replacement or credit. Since we have no control over the conditions in the facilities into which these animals are shipped, we will not accept responsibility for their health after 48 hours of receipt. Therefore if you have any problems regarding the status of your animals upon their arrival, it is important that you contact the NIA OBRRD within 48 hours of receipt .


  • 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

  • Page last updated Sep 26, 2008