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Rederivation

Rederivation to pathogen-free status via embryo transfer requires submission of 5 males, 10-24 weeks of age and 10 females, 7-12 weeks of age. You will receive all recovered pups after genotyping and health monitoring assays are performed.

Resuscitation and rederivation procedures are performed in pathogen-free barrier facility, and clean surrogate mothers purchased from commercial vendor are used for embryo transfers. You will receive the litters with confirmed genetics and pathogen-free health status.

Services Offered Non-Profit/
Academic Fees
For Profit Fees
Rederivation to pathogen-free status  via embryo transfer Contact for Quote
Cryopreservation of extra embryos $145 $214
 

03.08.2026

Introducing the Black Rat (Rattus rattus) Species Resource Page

RGD announced the release of a new comparative species page for the Black Rat (Rattus rattus).

08.25.2025

Why Research Resource Identifiers (RRIDs) Are Important

RRIDs are unique identifiers for key biological resources, genetically enigineered animals and reagents like antibodies.  Piekniewska et al. document how use of RRIDs improves trackability.  Importantly, better citation practices increase research rigor and reproducibility. 

07.30.2025

Animal Models and New Approach Methodologies (NAMs)

NAMs are lab (e.g., organoids and iPSCs) or computer-based methods intended to expand our tools for modeling human biology and disease. While this field is rapidly evolving, the need for animal models remains, especially for situations where a complex biological system is necessary. In addition, animal models serve as vital in vivo controls for the validation and verification of emerging NAMs.  

02.16.2025

In Need of a New Rat Model?

Need a new rat model?  The RRRC in conjunction with the MU Animal Modeling Core (AMC) can assist with the generation of transgenic rats, create knock-out and knock-in rats using CRISPR/Cas9 technology and genetically manipulate rat embryonic stem cells to make chimeric animals.  Contact us to discuss your rat model needs and how we can help.