given below be combined so that enrichment might accomplish multiple objectives.

  1. Techniques to promote foraging, including ''processing" of raw vegetables and fruits. (pp. 20–22)
  2. Techniques to promote manipulation. (pp. 20–22, 34)
  3. Techniques that allow animals to control aspects of the environment (opening doors and peep holes, influencing temperature and light, etc.). (p. 20)
  4. Techniques to promote other species-typical activity, including locomotion. (pp. 18–22)
  5. Techniques to reduce self-injurious behavior. (pp. 11, 17, 19, 21, 33–35)
  6. Techniques that require learning of novel responses for appetitive reward. (pp. 20–22, 40–42)
  7. Techniques that provide varied sensory stimuli (e.g., texture, density, shape, size, color, taste, and smell). (pp. 21–22)
  8. Other.
  1. Special Considerations

    The plan should make specific provisions for unusual situations and develop strategies for considering psychological well-being in these contexts, including one or more of the following:

    1. Strategies for hyperaggressive animals. (pp. 17, 33)
    2. Strategies for animals exhibiting injurious behavior. (pp. 34–38)
    3. Strategies for individual housing required because of veterinary care or research protocols. (pp. 17, 19–22, 33)
    4. Strategies for animals tethered or under restraint. (pp. 19, 40–42)
    5. Strategies for young (infant or juvenile) primates. (pp. 16–17, 22–23, 45)
    6. Strategies for very old primates. (p. 23)
    7. Other.
  1. Monitoring
    1. Various measures can be used to assess the well-being of nonhuman primates, including the following:
      1. Daily physical health checks by caregivers to assess
        1. Activity. (pp. 25, 45–46)
        2. Physical signs (eye and nose discharges, feces, urine production, menses, food ingestion, etc.). (pp. 11, 45–46)
      1. Daily monitoring of behavioral state by caregivers to identify
        1. Atypical behavior patterns. (p. 25)

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