Lewis inbred rats: LEW/Han®Hsd

select features

Coat: Albino
Docile disposition
Haplotype: RT1^l
Inbred recipient for several congenic strains
Increased levels of serum thyroxine, insulin, and growth hormone
Litter average: 7.5
Susceptible to induction of autoimmune disease

Origin: Inbreeding of the Lewis rat is begun by Dr. Margaret Lewis from a Wistar stock. In 1924, at F20 to Aptekman and Bogdon. In 1958, at F31 to Silvers, who distributed this strain subsequently.

To Central Institute for Laboratory Animal Breeding, Hannover, in 1973 at F58. In 1994, to Harlan Netherlands through acquisition of Central Institute for Laboratory Animal Breeding. Harlan became Envigo on 2015.

Available regions:

Asia-Pacific Austria Baltic states Belgium East Europe France Germany Ireland Italy Portugal Scandinavia Spain Switzerland The Netherlands United States United Kingdom Other regions

Male Order code: 861 - Germany

Description	Price	Currency
35-49g weight	41.25	EUR
50-74g weight	48.75	EUR
75-99g weight	55.35	EUR
100-124g weight	61.50	EUR
125-149g weight	69.45	EUR
150-174g weight	77.70	EUR
175-199g weight	85.05	EUR
200-224g weight	92.70	EUR
225-249g weight	100.35	EUR
250-274g weight	109.45	EUR
275-299g weight	117.35	EUR
Over 12 weeks, add per week	9.15	EUR
Proven breeder	116.65	EUR
Retired breeder	54.35	EUR

Female Order code: 861 - Germany

Description	Price	Currency
35-49g weight	42.35	EUR
50-74g weight	51.90	EUR
75-99g weight	61.65	EUR
100-124g weight	70.85	EUR
125-149g weight	83.15	EUR
150-174g weight	93.70	EUR
175-199g weight	108.25	EUR
Over 12 weeks, add per week	8.65	EUR
Untimed pregnant female	406.65	EUR
Timed pregnant female	570.55	EUR
Female with litter	513.15	EUR
Proven breeder	119.90	EUR
Retired breeder	56.05	EUR