Puzzle feeders and gum feeders as environmental enrichment for common marmosets (1999)

Roberts, R. L., Roytburd, L. A., Newman, J. D.

Abstract

The results of this study indicate that gum feeders and Puzzle-Feeders' loaded with waxmoth larvae are useful for reducing the rates of pacing and inactivity in single-housed and in pair-housed marmosets.