Abstract # 57:

Scheduled for Thursday, August 18, 2005 07:00 PM-09:00 PM: (Cambridge/Oxford Room) Poster Presentation

Factors predicting compatible grooming-contact pairings in four species of laboratory monkey

G. H. Lee, J. P. Thom and C. M. Crockett
Washington National Primate Res. Ctr., University of Washington, Seattle, WA 98195-7330, USA
     At WaNPRC, we employ grooming-contact caging as an effective way of providing tactile social contact while still accommodating investigators’ needs to access animals individually. Determining which factors predict compatibility may allow us to more effectively socialize all eligible animals. Using an established protocol to evaluate compatibility, we introduced 429 pairs of Papio cynocephalus (Pc), Macaca nemestrina (Mn), M. mulatta (Mm), and M. fascicularis (Mfl) and classified each pairing with a compatibility ranking with 1 being fully compatible, 2-6 increasing levels of incompatibility, and 7 determined incompatible during the introduction phase, usually owing to aggression. The occurrence of grooming or contact aggression on the first day of introduction was associated with ultimate compatibility (chi-square, P < 0.0001), but on day one, 18% of pairs eventually deemed compatible fought and 53% of compatible pairs did not groom. Species and age category were significantly related to compatibility (GLM-ANCOVA, P < 0.0001) as were sex, log(age) and log(weight) differences (P < 0.05). Regression analysis found that transformed age and weight differences accounted for very little variance in compatibility (3.3% and 0.6%). Pairs involving juveniles were more compatible than those consisting of adults (P < 0.01). Male-female pairs were more compatible than female-female pairs (P < 0.01). Over 60% of Mn, Mfl, and Pc pairings were fully compatible (ranked 1), compared to only 24% of Mm pairings. Of all the findings, species was the most useful predictor of success. NIH-RR00166.