Wistar Hannover GALAS™


Wistar Hannover GALAS™ Outbred Rat Model
Live production of this model has ceased. You might consider the outbred Sprague Dawley® rat as a substitute.

  • Model #
  • Genotype
  • Nomenclature
  • WH-F
  • WH-M
  • Frequently used as both a toxicology model and a general, all-purpose outbred model for use in biomedical research
  • Weighs less than SD rats but comparable to SD rats in reproductive performance
  • Produced and maintained in adherence to international health and genetic standards agreed upon by members of the Global Alliance for Laboratory Animal Standardization (GALAS): CLEA Japan, Inc. and Taconic Biosciences, Inc.


The Research and Consulting Company Ltd (RCC) received 156 breeding pairs of the Wistar Hannover GALAS™ outbred model from Dr. Willy Heine of Zentralinstitut für Versuchstierzucht in Hannover Germany in 1989. The rats were derived by caesarean in 1989. Taconic received breeding stock from RCC in 1998. The rats were refreshed with cryopreserved embryos in 1998. Each member of GALAS received 50 breeding stock from RCC in 1998. The rats were derived by caesarean in 1999. Taconic replaced its previous Wistar Hannover stock with Wistar Hannover GALAS™ in June 2000.


Live production of this model ceased on December 7, 2015

Coat Color Loci:

a, Tyrc, h





n= 250 per sex at MPF health standard from all global colonies. Data collected 2009-15.
High and Low represent mean +/- 2 standard deviations.
Based on sample size the charts above represents ~75% of the population.
All growth curves represent animals housed in our barriers, at our standard density and fed NIH31-M diet. Variations at customer facilities will alter expected growth curves. Growth charts are provided only as a guide, if a specific weight criteria is needed please order animals by weight.

Customize this chart by clicking the legend elements, then explore download options by hovering your cursor over the down arrow to the right of the chart title.

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