C57BL/6NTac Background
| Model Number | Zygosity | Nomenclature |
|---|---|---|
| B6-F | C57BL/6NTac | |
| B6-M | C57BL/6NTac |





Origin: C57BL/6 litters were received in 1991 at F151 from the NIH Animal Genetic Resource. Cesarean derived in 1991 at Taconic, a foundation colony is maintained in gnotobiotic isolators. Origin is as follows: to NIH in 1951 from Jax at F32; to Jax in 1948 from Hall.
Color: Black
Coat Color Loci: a
Genetics:
Animal Diet: NIH #31M Rodent Diet

| Quantity | Age (weeks) | Male | Female |
|---|---|---|---|
| 1 to 199 | 3 to 4 | $15.80 | $17.90 |
| 1 to 199 | 5 to 6 | $17.50 | $19.30 |
| 1 to 199 | 7 to 9 | $19.30 | $20.80 |
| Female w/Litter (6 pups) |
$130.60
|
| Untimed Pregnant |
$105.10
|
| Timed Pregnant |
$160.40
|
| Retired Breeder |
$16.30
|
| Animals over 12 weeks of age, call for pricing. | |
| Off the shelf males available up to 1 year |
| Age (weeks) | ||||
|---|---|---|---|---|
| 1-199 | 200+ | 1-199 | 200+ | |
| 3 to 4 | $18.70 | $17.40 | $20.70 | $19.20 |
| 5 to 6 | $20.50 | $19.10 | $22.20 | $20.80 |
| 7 to 9 | $22.80 | $21.30 | $24.00 | $22.60 |
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