• Model #
  • Zygosity
  • Nomenclature
  • SD-F
  • SD-M
  • SDRF-F
  • SDRF-M
  • Used in virtually all disciplines of biomedical research including toxicology and pharmacology
  • Excellent reproductive performance makes the SD rat a good model for generating timed pregnant females

*Now offered at the Restricted Flora™ Health standard (model # SDRF), in addition to the Murine Pathogen Free™ Health standard (model #SD). Useful as health sentinals, clean fosters or where co-housed with immunodeficient/genetically modified models.
Origin: The Sprague Dawley® outbred model was developed by Sprague Dawley, Inc. NIH received stock from Sprague Dawley, Inc in 1945. The rats are maintained as an outbred closed colony. Taconic received stock from the NIH Animal Genetic Resource in 1970. The rats were refreshed with NIH Genetic Resource stock in 1998.

Coat Colour Loci:

Color: Albino