| Model Number | Zygosity | Nomenclature |
|---|---|---|
| BLKSW-F | NTac:NIHBS | |
| BLKSW-M | NTac:NIHBS |




Origin: The Black Swiss outbred model was developed by Dr. Carl Hansen of the NIH Genetic Resource. N:NIH Swiss outbred mice were backcrossed to a C57BL/6N inbred background to generate a hybrid mouse heterozygous for the agouti locus. The mice were backcrossed ten generations (N10) to eliminate the agouti and albino alleles. Taconic received NTac:NIHBS litters in 1991. The mice were derived by caesarean in 1992 and rederived by embryo transfer in 2005.
Color: Black
Coat Color Loci: a
Genetics: Taconic's outbred colony is known to carry the recessive mutation, Pde6brd1
Animal Diet: NIH #31M Rodent Diet

| Age (weeks) | Male | Female |
|---|---|---|
| 3 to 4 | $8.40 | $9.10 |
| 5 to 6 | $9.10 | $10.10 |
| 7 to 8 | $10.80 | $11.20 |
| 9 to 10 | $12.00 | $12.10 |
| 11 | $19.20 | $19.50 |
| 12 | $23.60 | $24.00 |
| Female w/Litter (8 pups) |
$83.80
|
| Untimed Pregnant* |
$39.70
|
| Timed Pregnant |
$65.60
|
| Retired Breeder |
$10.10
|
*Untimed pregnant requests are filled with late gestation pregnant females. Pups may be delivered in transit.
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