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Animal Care
Fresh cherry tomatoes are a favorite enrichment food that is fed to the outdoor-housed monkeys.
 
The CNPRC houses approximately 5,500 monkeys for research and breeding. The majority of these monkeys are rhesus monkeys (Macaca mulatta), with small populations of cynomolgus monkeys (Macaca fascicularis), and South American titi monkeys (Callicebus cupreus).

Approximately 600 infants are born each year, primarily in the spring. The center also houses an aged colony of about 130 monkeys, ranging in age up to 36 years. The CNPRC is focused on expanding its colony of "specific pathogen free" or SPF monkeys, which currently number around 1,140. SPF monkeys are bred to be free of several viruses that, while harmless to monkeys, can have severe and sometimes fatal consequences if contracted by humans.

Several staff veterinarians and many veterinary residents and animal health technicians care for the center's monkeys as well as provide research support. The animal care staff – about 100 individuals – feeds the animals, cleans the cages, transfers animals when necessary and monitors them for illness or unusual behaviors. In addition, a staff of "enrichment" specialists is dedicated exclusively to promoting the well-being of the animals in our care.

Proposals for research studies involving monkeys must be reviewed and approved by several campus committees. These studies require prior approval by the UC Davis Institutional Animal Care and Use Committee (IACUC), which ensures that the project meets all federal laws governing animal care and use. Projects are also reviewed internally by the CNPRC Research Advisory Committee.

The CNPRC is a part of the UC Davis Animal Care Program which is accredited by the Association for Assessment and Accreditation of Laboratory Animal Care (AAALAC), a private, nonprofit group that promotes the humane treatment of animals in science through voluntary accreditation. UC Davis is one of more than 770 research institutions and other organizations that have earned AAALAC accreditation, demonstrating its commitment to responsible animal care and use.

In addition, the CNPRC is inspected by the U.S. Department of Agriculture, as required by the Animal Welfare Act passed by Congress.