Pickle barrels as enrichment objects for rhesus macaques.


Two breeding groups of rhesus monkeys (Macaca mulatta) housed in outdoor enclosures on Key Lois island were observed for 84 hours. Instantaneous scan sampling of a focal animal was used to gather data to test hypotheses concerning frequencies of agonistic and affiliative behaviors as well as differential use of pickle barrels as enrichment objects. Type of… (More)


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