Abstract # 4590 Event # 31:

Scheduled for Thursday, June 20, 2013 12:15 PM-12:30 PM: Session 3 (Las Olas) Oral Presentation


J. M. Worlein, G. H. Lee, R. Kroeker and J. P. Thom
Washington National Primate Research Center, P. O. Box 357330, Seattle, WA 98195, USA
     Regulatory agencies are putting renewed emphasis on providing social housing for all laboratory housed nonhuman primates. However, there is a paucity of published information regarding socialization outcomes to aid managers in planning and maintaining successful social housing strategies. Subjects were 674 pairs of pigtail macaques (Macaca nemestrina) housed in protected contact at Washington National Primate Center from 2005 to 2012. The introduction protocol, designed to maximize animal safety, involved introduction and observation over a period of days. 75% of pairs were compatible with only 8.5% sustaining injuries during introduction. Median length of pairings was 157 days. Most pairs (75%) were terminated due to experimental protocol assignment. A number of pairs (n=87) transitioned to full contact after being in protected contact for an average of 115 days. Proportions of pairs sustaining injuries were greater in full contact than in protected contact (27% vs 12%; ?2 12.9, p<0.001). Full contact pairs we also more likely to be terminated because of aggression (11% vs 4%; ?2 73.6, p<0.001). These results suggest that social pairings often do not last for an extended period of time and are usually terminated because of participation in an experimental protocol. They also suggest that animals housed in full contact are more likely to sustain injuries and pairs are more likely to be terminated because of aggressive interactions. NIH grant P51 OD010425