Madison, Wisconsin: Wisconsin Conservation Department
Summary
A study of hair growth and pelage changes in muskrats from Horicon Marsh, Wisconsin, has resulted in revision of the traditional concept of the priming process. Pelt collections used in this study included: 868 pelts from immature, known-age muskrats and 85 pelts from known-age adults taken during the regular fall and winter trapping seasons; 143 summer-trapped pelts of unknown-ages; and 33 nestling kits between 1 and 30 days old.