|Case Studies of Stress Behavior in Retired Research Monkeys|
|Sarah Jane Alger1, Mackenzie Brost1,2, Breanne Cyr2, Kira Hodgeman1, Kaela Jones1, Hilary Hemmes-Kavanaugh2. 1University of Wisconsin - Stevens Point, Stevens Point, WI, United States; 2Primates Incorporated, Westfield, WI, United States
Research experience can cause primates to exhibit stress via stereotypy and/or self-injurious behaviors and elevated cortisol levels. Primate sanctuaries have the mission of improving the quality of life of their residents, often through stress reduction efforts. We are conducting behavioral and fecal cortisol case studies on two residents of Primates Incorporated, a retirement sanctuary in Westfield, WI that primarily retires primates used in research. These case studies are based on two singly-housed male rhesus monkeys (Macaca mullatta) that are similarly aged and retired from the same research facility, although one (Mars) exhibits higher stress behaviors (49.5±2.6% positive, 43.8±2.4% neutral and 6.7±0.9% negative behaviors) than the other (Izzle: 50.2±2.3% positive, 48.1±2.3% neutral and 1.6±0.3% negative behaviors). We scan sampled each animal for four daily 10-minute observations twice weekly for over a year and documented changes in housing and medication. Izzle and Mars showed different behavioral profiles and responses to changes in their environment. Nonintrusive behavioral research like this can assess individual variation in stress for targeted intervention.