The purpose of this article is to illustrate how recycled, throw-away, and donated materials have been used creatively at little cost for the daily enrichment of chimpanzees.
This study demonstrates that only a minimal time investment was needed to train a large troop of laboratory non-human primates to co-operate in the catching procedure. A group of 45 rhesus macaques (Macaca mulatta) was...
Summary of common enrichment strategies.
Starting with submissive animals, individuals from the first group [2 females and 1 male] were introduced step by step to the second [resident] group [3 females and 1 male]. A new group was successfully formed...
As always, the key to successful enrichment is variety. Use a different device each day. Load it with different foods each time. Sometimes don't load it with anything at all! (It keeps them guessing.) Before...
Enrichment items are thoroughly examined for potential hazards.
Ninety-nine of the biscuits were placed in a freely accessible dish attached to the mesh of the front of the cage. Thirty-three biscuits were offered in a food puzzle. Twenty-five percent (4/16) of the subjects...
Higher perching elevations appear to be a very desirable feature in this environment for the expression of six of the twelve behaviors studied. Mid-level perches, on the other hand, were utilized more for only two...
Eight single-caged adult rhesus macaques were given the choice of freely collecting their standard food ration, i.e. 33 biscuits, from an ordinary food box or working for its retrieval from a custom- made food puzzle...