Research models

List of models

Nomenclature: RjHan:SD

Type: Outbred rat
Colour and related genotype: Albino rat - Tyrc/Tyrc
Origin: Zentralinstitut für Versuchstierzucht (Hannover) - 1982
Breeding: Good breeder, strong maternal instinct

Fields of research

  • Experimental surgery
  • General studies
  • Metabolism, nutrition
  • Neurology
  • Oncology
  • Pharmacology
  • Physiology, ageing
  • Teratology
  • Toxicology

Description of our model

The strain was created by R. W. Dawley in 1925, from a hooded male hybrid of unknown origin and an albino female (probably Wistar), and was crossed with the female’s progeny for 7 generations.

The SPRAGUE DAWLEY® rat is an albino outbred rat with an elongated head and a tail that is longer than its body.

A fast growing rat, it is docile and easy to handle.



SPRAGUE DAWLEY® is a trademark of Harlan. All rights reserved.


Our added value

  • The « JANVIER LABS Genetic Policy », a specific programme, guarantees less than 1% inbreeding per generation.
  • Animals with the SPF or SOPF standards.
  • A gentling policy for docile and easy-to-handle animals.
  • Optimal stability conditions of our models during shipments, thanks to our dedicated and internal transport service.
  • A scientific support with a team of Veterinarians and PhD.

Download the corresponding health monitoring reports

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