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Pair-rearing infant monkeys (Macaca nemestrina) using a "rotating-peer" strategy

M F Novak1, G P Sackett

  • 1Department of Psychology, University of Washington, Seattle 98195-1525, USA.

American Journal of Primatology
|January 1, 1997
PubMed
Summary

Altering social rearing conditions for pigtailed macaques did not prevent abnormal social behaviors. Rotating partners intensified social issues, highlighting the need for controlled environments in primate developmental research.

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Area of Science:

  • Primate behavior
  • Animal welfare
  • Developmental psychology

Background:

  • Captive primate rearing is crucial for research and breeding.
  • Previous studies showed pair-reared macaques developed excessive social clinging.
  • This clinging hindered adaptation to larger social groups.

Purpose of the Study:

  • To investigate if rotating social partners reduces abnormal clinging in young macaques.
  • To assess the impact of varied social stimulation on primate social development.
  • To evaluate interlaboratory reliability in studying primate social behavior.

Main Methods:

  • Eight pigtailed macaques were pair-reared for six months.
  • Home-cage partners were rotated every 2-3 days to increase social variability.

Related Experiment Videos

  • Animals were housed in two groups: a nursery and a BSL-3 virus laboratory.

    • Main Results:

    • Infants developed abnormal social behaviors, some more extreme than continuously pair-reared macaques.
    • Differences in social behavior were observed between the nursery and BSL-3 laboratory groups.
    • Rotating partners did not mitigate, and potentially exacerbated, abnormal social clinging.

    Conclusions:

    • Varied social stimulation through partner rotation did not prevent abnormal social behaviors in young macaques.
    • Environmental factors and laboratory settings can influence primate social development.
    • Strict controls are essential for reliable biobehavioral developmental research in primates.