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Time budget of caged rhesus monkeys exposed to a companion, a PVC perch, and a piece of wood for an extended time

Time budget of caged rhesus monkeys exposed to a companion, a PVC perch, and a piece of wood for... The present investigation assesses the percentage of time that rhesus monkeys (Macaca mulatta) are kept occupied by a more complex cage environment. Sixty animals were continuously exposed for at least 1.5 years to a compatible companion for social interaction, a suspended plastic pipe for perching, and a branch segment for gnawing. The behavior of the partners of each pair was recorded for 60 minutes when the animals were not distracted by human activities. Individuals spent an average of 23.5% of the time interacting with the companion, but only 10.4% with the plastic pipe and 4.8% with the branch segment. Differences were statistically significant. Females were socially more active than males. Subadult animals (3.5–4 years) used both inanimate objects significantly more than did adult animals (9–30 years). It was concluded that (1) a compatible companion, a suspended plastic pipe, and a loose branch segment remain effective stimuli for caged rhesus monkeys after more than 1 year of exposure and (2) a compatible companion is of greater stimulatory value–particularly for adults–than are inanimate objects. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Primatology Wiley

Time budget of caged rhesus monkeys exposed to a companion, a PVC perch, and a piece of wood for an extended time

Reinhardt, Viktor
American Journal of Primatology , Volume 20 (1) – Jan 1, 1990
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References (42)

Publisher
Wiley
Copyright
Copyright © 1990 Wiley‐Liss, Inc., A Wiley Company
ISSN
0275-2565
eISSN
1098-2345
DOI
10.1002/ajp.1350200108
Publisher site
See Article on Publisher Site

Abstract

The present investigation assesses the percentage of time that rhesus monkeys (Macaca mulatta) are kept occupied by a more complex cage environment. Sixty animals were continuously exposed for at least 1.5 years to a compatible companion for social interaction, a suspended plastic pipe for perching, and a branch segment for gnawing. The behavior of the partners of each pair was recorded for 60 minutes when the animals were not distracted by human activities. Individuals spent an average of 23.5% of the time interacting with the companion, but only 10.4% with the plastic pipe and 4.8% with the branch segment. Differences were statistically significant. Females were socially more active than males. Subadult animals (3.5–4 years) used both inanimate objects significantly more than did adult animals (9–30 years). It was concluded that (1) a compatible companion, a suspended plastic pipe, and a loose branch segment remain effective stimuli for caged rhesus monkeys after more than 1 year of exposure and (2) a compatible companion is of greater stimulatory value–particularly for adults–than are inanimate objects.

Journal

American Journal of Primatology – Wiley

Published: Jan 1, 1990

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