SpeciesTherapeutic AreaHighlighted

CD® IGS (Sprague Dawley) Rats

Crl:CD(SD)

CD
AT A GLANCE

Coat Color

Albino

Strain Code

001

Ideal For

General multipurpose model, safety and efficacy testing, aging, nutrition, diet-induced obesity, oncology, surgical model

Produced In

DE FR GB IT US
Description

Originated in 1925 by Robert W. Dawley from a hybrid hooded male and a female Wistar rat. To Charles River in 1950 from Sprague Dawley, Inc. In 1991, 8 colonies were selected to form the IGS Foundation Colony. Rederived into an isolator foundation colony in 1997. IGS refers to animals bred using the Charles River International Genetic Standardization Program.