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 |
|---|---|---|---|
| 1-199 | 3 to 4 | $17.30 | $18.70 |
| 1-199 | 5 to 6 | $20.40 | $20.70 |
| 1-199 | 7 to 9 | $22.60 | $22.40 |
| 1-199 | 10 to 12 | $31.50 | $31.50 |
| 200+ | 3 to 4 | $16.00 | $17.20 |
| 200+ | 5 to 6 | $18.90 | $19.20 |
| 200+ | 7 to 9 | $20.80 | $20.60 |
| 200+ | 10 to 12 | $29.00 | $28.20 |
| Female w/Litter (6 pups) |
$163.80
|
| Untimed Pregnant |
$119.60
|
| Timed Pregnant |
$175.30
|
| Retired Breeder |
$17.90
|
| Retired female (not pregnant) |
$42.80
|
*Pricing above is for the MPF™ health status.*
| Age (weeks) | Male | Female |
|---|---|---|
| 3 to 4 | $23.90 | $25.80 |
| 5 to 6 | $29.80 | $32.20 |
| 7 to 9 | $36.30 | $37.80 |
| 10 | $44.70 | $46.20 |
| Retired Breeder | $23.90 |
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