ing may be authorized by the attending veterinarian for the following reasons:
It is sometimes necessary to separate chronically sick or debilitated animals from social housing. These animals are maintained in individual cages with multiple perches and varied foods, and have frequent contact with familiar caregivers. An "Exemption from Social Housing" form, signed by the attending veterinarian, is required.
When an entire group or room of monkeys are known or believed to have been exposed to an infectious agent, the entire group will be kept intact and under quarantine during the diagnosis, treatment, and control of the problem unless otherwise required by the attending veterinarian. The procedure is specified in the quarantine SOP.
A monkey that is found to be hyperaggressive or vicious within their social group will be relocated to another social group if possible. If the animal is a danger to other animals, it will be placed in an individual cage on the orders of the attending veterinarian. An "Exemption from Social Housing" form, signed by the attending veterinarian, is required.
This category applies to animals that cannot defend themselves from the normal dominance-related aggression that occurs in the species. Removal of such an animal from the social group risks being unable to reintroduce it to the same group or introduce it to another social group and is a course of last resort. Environmental enrichments—including provisions for the animal to hide in boxes, culverts, and behind walls—are often useful in alleviating this condition An "Exemption from Social Housing" form, signed by the attending veterinarian, is required.
Exemptions from social housing are sometimes necessary to carry out a research protocol. This exemption is made for such protocols approved by the IACUC. The animals are separated from their social group for the time necessary to conduct the study. Approved protocols are monitored on an annual basis.
Other circumstances requiring single housing that have not been defined occasionally arise. A decision to remove an animal from its social or pair group is based on the professional judgment of the attending veterinarian in consultation with the investigator (if appropriate) and the IACUC. An "Exemption from Social Housing" form, signed by the attending veterinarian, is required.