Abstract
Although commonly practiced with many species, feeding enrichment in elephants is understudied. The behavioral effects of feeding enrichment were tested in three African elephants by substituting an equal dry weight of browse for hay in an ABA design. The results showed a significant increase in feeding and significant decreases in drinking and inactivity when the browse was present. Additionally, changes in feeding, inactivity, and time spent in contact were observed outside the time the browse was actually presented, although the relationship of these changes to the experimental methodology is unknown. A significant increase in visibility to zoo visitors during the browse conditions demonstrates that browse is an effective, naturalistic method for increasing visibility as well as species-typical behaviors. Managers of captive elephants should consult with a nutritionist to address issues of energetics, nutritional content, and secondary compounds when using browse as feeding enrichment. Zoo Biol 19:485-493, 2000. Copyright 2000 Wiley-Liss, Inc.
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