Factors That Determine Successful Social Housing of African Green Monkeys (Chlorocebus sabaeus) in Same-Sex Pairs and Trios.

Social housing provides a high level of enrichment for captive non-human primates, but providing this in research situations can be challenging. We have developed a multifactorial animal selection and introduction process coordinated by veterinary and animal care behavioral teams. This process sought to successfully establish lasting same-sex pairs and trios for African green monkeys (Chlorocebus sabaeus) in studies lasting from three months to over a year. The selection and introduction process addresses variables that impact a successful grouping, including age, animal weight difference, cage size and configuration. Evaluation and consideration of these initial matchmaking parameters has favorably enhanced pairing/trio bonding. Social housing with females has been typically more successful than with males, with 90-100% of females successfully pair- or trio-housed. Successful pairs and trios exhibit multiple affiliative behaviors and demonstrate better overall health while under study, ensuring benefits both to animal welfare and study data.