- Origin – Imported from Taconic in 2009.
- Common name/s – Swiss
- Special characteristics – This strain is known for its large litters and excellent mothering abilities. Frequently used as a recipient mother for embryo transfers.
- A background finding with this strain is a mild to moderate incidence of cystically dilated tubules in the kidneys. While this is not associated with renal dysfunction, it may be noted during routine histopathology.