Animal Welfare Information Center Newsletter, Winter 1997/1998, Vol. 8, no. 3-4

Figure 1. PVC pipe and glass jars were evaluated as enrichment items.

Cheryl Arnold and Robert D. Westbrook "Enrichment in Group-Housed Laboratory Golden Hamsters" Animal Welfare Information Center Newsletter, 8(3):1-2, 22-24, Winter 1997/1998.