| Model Number | Zygosity | Nomenclature |
|---|---|---|
| LEWIS-F | LEW/MolTac | |
| LEWIS-M | LEW/MolTac |





Origin: Developed by Wistar Institute in the 1940s/1950s. Taconic's substrain can be traced originally to Scripps Clinic, La Jolla, to University of Pennsylvania to Simonsen Laboratories in 1966, to Institute of Pathological Anatomy, University of Copenhagen, Denmark 1973. From University of Copenhagen to M&B A/S (now Taconic Europe) in 1977. Inbreeding F(+) 101 (February 2002). Rederived Taconic US in 2002. The Taconic US foundation colony was at F16 in 2005.
Color: Albino
Coat Color Loci: a, Tyrc
Genetics:
Animal Diet: NIH #31M Rodent Diet

| Age (weeks) | Male | Female |
|---|---|---|
| 3 | $33.60 | $33.90 |
| 4 | $37.70 | $38.30 |
| 5 | $39.90 | $40.50 |
| 6 | $47.30 | $46.30 |
| 7 | $49.00 | $50.70 |
| 8 | $54.40 | $50.70 |
| 9 | $58.60 | $50.70 |
| 10 | $62.10 | $60.30 |
| 11 | $72.50 | $65.70 |
| 12 | $77.10 | $71.30 |
| Female w/Litter (8 pups) |
$187.10
|
| Untimed Pregnant* |
$125.00
|
| Timed Pregnant |
$195.00
|
| Retired Breeder |
$38.50
|
*Untimed pregnant requests are filled with late gestation pregnant females. Pups may be delivered in transit.
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