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Destructible toys as enrichment for captive chimpanzees
1Department of Laboratory Animal Medicine, Southwest Foundation for Biomedical Research, San Antonio, TX 78245-0549, USA.
Journal of Applied Animal Welfare Science : JAAWS
|December 21, 2005
Summary
Providing inexpensive, destructible toys one at a time significantly increased chimpanzee engagement. Flexible cloth and vinyl toys proved more durable, enhancing environmental enrichment programs for captive primates.
Area of Science:
- Primate Behavior
- Animal Welfare Science
- Environmental Enrichment
Background:
- Destructible toys show promise for enriching nonhuman primate environments.
- Previous studies indicate positive behavioral effects and increased object interaction.
Purpose of the Study:
- To evaluate the usage and durability of inexpensive, destructible toys for chimpanzees.
- To compare toy use when provided individually versus in groups.
Main Methods:
- Nine singly housed chimpanzees were observed over 15-minute trials, twice daily.
- Eight different toys (plastic, vinyl, cloth) were introduced individually or simultaneously.
- Toy removal criteria included destruction or lack of contact over four trials.
Main Results:
- Chimpanzees contacted toys an average of 11 times per trial.
- Individual toy presentation led to significantly higher usage than group presentation.
- Flexible cloth and vinyl toys demonstrated greater durability than rigid plastic toys.
- Destructible toys were used more frequently than permanent toys or televisions.
Conclusions:
- Providing flexible, inexpensive toys one at a time is an effective enrichment strategy for captive chimpanzees.
- Toy durability is influenced by material type, with flexible materials lasting longer.
- This approach can optimize environmental enrichment programs for primate welfare.
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