| 由来: |
The rats were originally generated by the University of Michigan Transgenic Animal Model Core, University of Michigan. They use a Crl:CD(SD) sub strain of Sprague-Dawley rats, obtained
from Charles River Laboratory (Wilmington, MA, USA). The F1 rats have been bred in the UK with Hsd:Sprague Dawley (Harlan laboratories, UK), which are direct descendants of the original 1925 SD-company colony (Madison, Wisconsin, USA).
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