Anatomic and physiologic characterization of the WF/PmWp-"fz" (fuzzy) rat.

The WF/PmWp-"fz" rat is an inbred strain of hypotrichotic rat derived from a Wistar Furth colony. This strain, also known as the "fuzzy rat," has been used for dermal toxicity research; however, little is known about its longevity and age-related physiologic and pathologic changes. Presented are basic anatomic and physiologic parameters, collected for each sex at five ages, including hematologic and clinical biochemical profiles, organ and body weights, and a characterization of gross and histopathologic findings.