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Social Housing of Previously Single-Caged Macaques: What Are the Options and The Risks?

Published online by Cambridge University Press:  11 January 2023

V Reinhardt*
Affiliation:
Animal Welfare Institute, PO Box 3650, Washington, DC 20007, USA
C Liss
Affiliation:
Animal Welfare Institute, PO Box 3650, Washington, DC 20007, USA
C Stevens
Affiliation:
Animal Welfare Institute, PO Box 3650, Washington, DC 20007, USA
*
Contact for correspondence and requests for reprints: 4605 Crescent Road, Madison WI 53711, USA
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Abstract

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A review of the scientific literature gives evidence that transferring previously single-caged adult macaques to permanent compatible pair-housing arrangements (isosexual pairs, adult/infant pairs) is associated with less risk of injury and morbidity than transferring them to permanent group-housing arrangements. Juvenile animals can readily be transferred to permanent group-housing situations without undue risks. Safe pair formation and subsequent pair-housing techniques have been developed for female and male rhesus (Macaca mulatta), stump-tailed (M. arctoides) and pig-tailed macaques (M. nemestrina) as well as for female long-tailed macaques (M. fascicularis). Pair housing does not jeopardize the animals’ physical health but it increases their behavioural health by providing them with an adequate environment to satisfy their need for social contact and social interaction.

Type
Research Article
Copyright
© 1995 Universities Federation for Animal Welfare

References

Alexander, B K 1966 The effects of early peer-deprivation on juvenile behaviour of rhesus monkeys. Doctoral Dissertation, University of Wisconsin, USAGoogle Scholar
Arnone, M and Dantzer, P 1980 Does frustration induce aggression in pigs? Applied Animal Ethology 6: 351362CrossRefGoogle Scholar
Bennett, C L and Davis, R T 1989 Long term animal studies. In: Segal E F (ed) Housing, Care and Psychological Wellbeing of Captive and Laboratory Primates pp 213-234. Noyes Publications: Park Ridge, USAGoogle Scholar
Bernstein, I S 1969 Introductory techniques in the formation of pigtail monkey troops. Folia Primatologica 10: 119CrossRefGoogle ScholarPubMed
Bernstein, IS 1980 Activity patterns in a stumptail macaque group (Macaca arctoides). Folia Primatologica 33: 2045CrossRefGoogle Scholar
Bernstein, I S 1991 Social housing of monkeys and apes: group formations. Laboratory Animal Science 41: 329333Google ScholarPubMed
Bernstein, I S and Draper, W A 1964 The behaviour of juvenile rhesus monkeys in groups. Animal Behaviour 12: 2831CrossRefGoogle Scholar
Bernstein, I S and Gordon, T P 1974 The function of aggression in primate societies. American Scientist 62: 304311Google ScholarPubMed
Bernstein, I S, Gordon, T P and Rose, R M 1974 Factors influencing the expression of aggression during introduction to rhesus monkey groups. In: Holloway, R L (ed) Primate Aggression, Territoriality and Xenophobia pp 211240. Academic Press: New York, USAGoogle Scholar
Bernstein, I S and Mason, W A 1963 Group formation by rhesus monkeys. Animal Behaviour 11: 2831CrossRefGoogle Scholar
Boccia, M L, Broussard, C, Scanlan, J and Laudenslager, M L 1992 Practice makes predictable: the differential effect of repeated sampling on behavioural and physiological responses in monkeys. In: Davis, H and Balfour, A D (eds) The Inevitable Bond: Examining Scientist-Animal Interactions pp 153170. Cambridge University Press: Cambridge, UKGoogle Scholar
Bovard, E W 1959 The effects of social stimuli on the response to stress. Psychological Review 66: 267277CrossRefGoogle ScholarPubMed
Bramblett, C A 1989 Enrichment options for guenons in the laboratory. American Journal of Primatology Supplement 1: 5963Google Scholar
Brandt, E M and Mitchell, G 1973 Pairing preadolescents with infants (Macaca mulatta). Developmental Psychology 8: 222228CrossRefGoogle Scholar
Bunyak, S C, Harvey, N C, Rhine, R J and Wilson, M I 1982 Venipuncture and vaginal swabbing in an enclosure occupied by a mixed-sex group of stumptailed macaques (Macacca arctoides). American Journal of Primatology 2: 201204CrossRefGoogle Scholar
Bushong, D, Schapiro, S J and Bloomsmith, M A 1992 Self-aggression in non-human primates: a review of its development/possible causes, methods of therapeutic treatment, and its relevance to the zoo situation. American Association of Zoological Parks and Aquariums (AAZPA) Regional Proceedings: 723729Google Scholar
Canadian Council on Animal Care (CCAC) 1993 Guide to the Care and Use of Experimental Animals, Volume 1, 2nd edition. CCAC: Ottawa, CanadaGoogle Scholar
Chamove, A S 1973 Rearing infant rhesus together. Behaviour 47: 4866CrossRefGoogle ScholarPubMed
Chamove, A S, Rosenblum, L A and Harlow, H F 1973 Monkeys (Macaca mulatta) raised only with peers. A pilot study. Animal Behaviour 21: 316325CrossRefGoogle ScholarPubMed
Chance, R M A, Byrne, B and Jones, E 1983 A tandem cage for individually handling group-living monkeys. Laboratory Animals 17: 129132CrossRefGoogle ScholarPubMed
Chance, R M A, Emory, G R and Payne, R G 1977 Status referents in long-tailed macaques (Macaca fascicularis): precursors and effects of a female rebellion. Primates 18: 611632CrossRefGoogle Scholar
Chopra, P K, Seth, S and Seth, P K 1992 Behavioural profile of free-ranging rhesus monkeys. Primate Report 32: 75105Google Scholar
Clarke, M R, Kaplan, J R, Bumsted, P T and Koritnik, D R 1986 Social dominance and serum testosterone concentration in dyads of male Macaca fascicularis. Journal of Medical Primatology 15: 419432CrossRefGoogle ScholarPubMed
Clarke, M R, Phillippi, K M, Falkenstein, J A, Moran, E A and Suomi, S J 1990 Training corral-living rhesus monkeys for fecal and blood sample collection. American Journal of Primatology 20: 181 (Abstract)Google Scholar
Cobb, S 1976 Social support as a moderator of life stress. Psychosomatic Medicine 38: 300314CrossRefGoogle ScholarPubMed
Coe, C L 1991 Is social housing of primates always the optimal choice? In: Novak M A and Petto A J (eds) Through the Looking Glass: Issues of Psychological Weil-Being in Captive Nonhuman Primates pp 7892. American Psychological Association: Washington, USACrossRefGoogle Scholar
Coe, C L, Franklin, D, Smith, E R and Levine, S 1982 Hormonal responses accompanying fear and agitation in the squirrel monkey. Physiology and Behavior 29: 10511057CrossRefGoogle ScholarPubMed
Coe, C L and Rosenblum, L A 1984 Male dominance in the bonnet macaque: a malleable relationship. In: Barchas, P and Mendoza, SP (eds) Social Cohesion: Essays Toward a Sociophysiological Perspective pp 3164. Greenwood Press: Westport, USAGoogle Scholar
Coelho, A M, Carey, K D and Shade, R E 1991 Assessing the effects of social environment on blood pressure and heart rates of baboon. American Journal of Primatology 23: 257267CrossRefGoogle Scholar
Crockett, C M, Bowers, C L, Bowden, D M and Sackett, G P 1994 Sex differences in compatibility of pair-housed adult long-tailed macaques. American Journal of Primatology 32: 7394CrossRefGoogle Scholar
Cubicciotti, D D and Mason, W A 1975 Comparative studies of social behavior in Callicebus and Saimiri: male-female emotional attachments. Behavioral Biology 16: 185197CrossRefGoogle Scholar
de Monte, M, Anderson, J R and Charbonnier, H 1992 Self-aggression in stumptail macaques: effects of frustration and social partners. Primates 33: 115120CrossRefGoogle Scholar
Der Schweizerische Bundesrat 1981 Tierschutzverordnung, Stand am 1. Januar 1992. Bundesrat: Bern, SwitzerlandGoogle Scholar
de Waal, F B M 1991 The social nature of primates. In: Novak, M A and Petto, A J (eds) Through the Looking Glass: Issues of Psychological Weil-Being in Captive Nonhuman Primates pp 6777. American Psychological Association: Washington, USAGoogle Scholar
Dollinger, P 1971 Tod durch Verhalten bei Zootieren. Juris Druck und Verlag: Zürich, SwitzerlandGoogle Scholar
Eaton, G G, Kelley, S T, Axthelm, M K, Iliff-Sizemore, S A and Shiigi, S M 1994 Psychological well-being in paired adult female rhesus (Macaca mulatta). American Journal of Primatology 33: 8999CrossRefGoogle ScholarPubMed
Ehardt, C A and Bernstein, I S 1986 Matrilineal overthrows in rhesus monkey groups. International Journal of Primatology 7: 157181CrossRefGoogle Scholar
Epley, S W 1974 Reduction of the behavioral effects of aversive stimulation by the presence of companions. Psychological Bulletin 81: 271283CrossRefGoogle ScholarPubMed
Erwin, J 1977 Factors influencing aggressive behavior and risk of trauma in pigtail macaque (Macaca nemestrina). Laboratory Animal Science 27: 541547Google ScholarPubMed
Erwin, J 1979 Aggression in captive macaques: interaction of social and spatial factors. In: Erwin, J, Maple, T and Mitchell, G (eds) Captivity and Behavior pp 139171. Van Nostrand: New York, USAGoogle Scholar
Erwin, J, Mitchell, G and Maple, T 1973 Abnormal behavior in non-isolate-reared rhesus monkeys. Psychological Reports 33: 515523CrossRefGoogle ScholarPubMed
Fairbanks, L A, McGuire, M T and Kerber, W T 1977 Sex and aggression during rhesus monkey group formation. Aggressive Behavior 3: 2412493.0.CO;2-1>CrossRefGoogle Scholar
Fairbanks, L A, McGuire, M T and Kerber, W T 1978 Effects of group size, composition, introduction technique and cage apparatus on aggression during group formation in rhesus monkeys. Psychology Reports 42: 327333CrossRefGoogle ScholarPubMed
Fouts, R S, Abshire, M L, Bodamer, M and Fouts, D H 1989 Signs of enrichment: towards the psychological well-being of chimpanzees. In: Segal, E F (ed) Housing, Care and Psychological Wellbeing of Captive and Laboratory Primates pp 376388. Noyes Publications: Park Ridge, USAGoogle Scholar
Gibber, J R and Goy, R W 1985 Infant-directed behavior in young rhesus monkeys: sex differences and effects of prenatal androgens. American Journal of Primatology 8: 225237CrossRefGoogle ScholarPubMed
Gonzalez, C A, Coe, C L and Levine, S 1982 Cortisol responses under different housing conditions in female squirrel monkeys. Psychoneuroendocrinolgy 7: 209216CrossRefGoogle ScholarPubMed
Goosen, C, van der Gulden, W, Rozemond, H, Balner, H, Bertnes, A, Boot, R, Brinkert, J, Dienske, H, Janssen, G, Lammers, A and Timmermans, P 1984 Recommendations for the housing of macaque monkeys. Laboratory Animal 18: 99102CrossRefGoogle ScholarPubMed
Gordon, T P, Gust, D A, Wilson, M E, Ahmed-Ansari, A, Brodie, A R and McClure, H M 1992 Social separation and reunion affects immune system in juvenile rhesus monkeys. Physiology and Behavior 51: 467472CrossRefGoogle ScholarPubMed
Gunnar, M R, Gonzalez, C A and Levine, S 1980 The role of peers on modifying behavioral distress and pituitary-adrenal response to a novel environment in year-old rhesus monkeys. Physiology and Behavior 25: 795798CrossRefGoogle ScholarPubMed
Gust, D A, Gordon, T P, Hambright, M K and Wilson, ME 1994 Relationship between social factors and pituitary-adrenocortical activity in female rhesus monkeys. Hormones and Behavior 27: 318331CrossRefGoogle Scholar
Harlow, H F and Suomi, S J 1971 Social recovery by isolation-reared monkeys. Proceedings of the National Academy of Science 68: 15341538CrossRefGoogle ScholarPubMed
Hennessy, M B 1984 Presence of companion moderates arousal of monkeys with restricted social experience. Physiology and Behavior 33: 693–69CrossRefGoogle ScholarPubMed
Holm, R A 1979 Effect of parental risk and prenatal stress on pregnancy outcome. In: Ruppenthal, G C (ed) Nursery Care of Non-human Primates pp 2126. Plenum Press: New York, USACrossRefGoogle Scholar
Home Office 1989 Code of Practice for the Housing and Care of Animals Used in Scientific Procedures. HMSO: London, UK International Primatological Society 1993 IPS International Guidelines for the Aquisition, Care and Breeding of Nonhuman Primates. Primate Report 35: 329Google Scholar
Judge, P G, de Waal, F B M, Paul, K S and Gordon, T P 1994 Removal of a trauma-inflicting alpha matriline from a group of rhesus macaques to control severe wounding. Laboratory Animal Science 44: 344350Google ScholarPubMed
Kaplan, J R, Manning, P and Zucker, E 1980 Reduction of mortality due to fighting in a colony of rhesus monkeys (Macaca mulatta). Laboratory Animal Science 30: 565570Google Scholar
Keeling, M A 1990 A historical view. In: Mench, J A and Krulisch, L (eds) Well-Being of Nonhuman Primates in Research pp 1214. Scientists Center for Animal Welfare: Bethesda, USAGoogle Scholar
Kessler, M J, London, W T, Rawlins, R G, Gonzales, J, Martines, H S and Sanches, J 1985 Management of a harem breeding colony of rhesus monkeys to reduce trauma-related morbidity and mortality. Journal of Medical Primatology 14: 9198CrossRefGoogle ScholarPubMed
Leon, S, Taylor, L and Sussman, R W 1993 Activity patterns of captive and free-ranging long-tailed macaques (Macaca fascicularis). Proceedings of the American Association of Zoological Parks and Aquariums Annual Conference: 171178Google Scholar
Line, S W 1987 Environmental enrichment for laboratory primates. Journal of the American Veterinary Medical Association 190: 854859Google ScholarPubMed
Line, S W, Markowitz, H, Morgan, K N and Strong, S 1989a Evaluation of attempts to enrich the environment of single-caged non-human primates. In: Driscoll, J W (ed) Animal Care and Use in Behavioral Research: Regulation, Issues, and Applications pp 103117. Animal Welfare Information Center National Agricultural Library: Beltsville, USAGoogle Scholar
Line, S W, Markowitz, H, Morgan, K N and Strong, S 1991 Effect of cage size and environmental enrichment on behavioral and physiological responses of rhesus macaques to the stress of daily events. In: Novak, M A and Petto, A J (eds) Through the Looking Glass: Issues of Psychological Well-Being in Captive Nonhuman Primates pp 160179. American Psychological Association: Washington, USACrossRefGoogle Scholar
Line, S W, Morgan, K N, Markowitz, H, Roberts, J and Riddell, M 1990b Behavioral responses of female long-tailed macaques (Macaca fascicularis) to pair formation. Laboratory Primate Newsletter 29(4): 15Google Scholar
Line, S W, Morgan, K N, Markowitz, H and Strong, S 1989b Heart rate and activity of rhesus monkeys in response to routine events. Laboratory Primate Newsletter 28(2): 912Google Scholar
Line, S W, Morgan, K N, Roberts, J A and Markowitz, H 1990a Preliminary comments on resocialization of aged rhesus macaques. Laboratory Primate Newsletter 29(1): 812Google Scholar
Lorenz, K 1971 Studies in Animal and Human Behavior, Volume II. Harvard University Press: Cambridge, USAGoogle Scholar
Luttrell, L, Acker, L, Urben, M and Reinhardt, V 1994 Training a large troop of rhesus macaques to co-operate during catching: analysis of the time investment. Animal Welfare 3: 135140CrossRefGoogle Scholar
Lyons, D M, Price, E O and Moberg, G P 1988 Social modulation of pituitary-adrenal responsiveness and individual differences in behavior of young domestic goats. Physiology and Behavior 43: 451458CrossRefGoogle ScholarPubMed
Mason, W A 1991 Effects of social interaction on well-being: development aspects. Laboratory Animal Science 41: 323328Google ScholarPubMed
Maxim, P E 1976 An interval scale for studying and quantifying social relations in pairs of rhesus monkeys. Journal of Experimental Psychology 105: 123147CrossRefGoogle Scholar
Mendoza, S P 1991 Sociophysiology of well-being in nonhuman primates. Laboratory Animal Science 41: 344349Google ScholarPubMed
Mendoza, S P and Mason, W A 1986 Contrasting responses to intruders and to involuntary separation by monogamous and polygynous New World monkeys. Physiology and Behavior 38: 795801CrossRefGoogle ScholarPubMed
Mitchell, G and Gomber, J 1976 Moving laboratory rhesus monkeys (Macaca mulatta) to unfamiliar home cages. Primates 17: 543547CrossRefGoogle Scholar
National Institutes of Health (NIH) 1985 Guide for the Care and Use of Laboratory Animals. NIH Publication No 85-23: Bethesda, USAGoogle Scholar
National Institutes of Health (NIH) 1991 Nonhuman Primate Management Plan. Office of Animal Care and Use. NIH: Bethesda, USAGoogle Scholar
Novak, M A and Drewsen, K H 1989 Enriching the lives of captive primates: issues and problems. In: Segal, E F (ed) Housing, Care and Psychological Wellbeing of Captive and Laboratory Primates pp 161182. Noyes Publications: Park Ridge, USAGoogle Scholar
Novak, M A and Suomi, S J 1988 Psychological well-being of primates in captivity. American Psychologist 43: 765773CrossRefGoogle ScholarPubMed
Novak, M A and Suomi, SJ 1991 Social interaction in nonhuman primates: an underlying theme for primate research. Laboratory Animal Science 41: 308314Google ScholarPubMed
O’Keeffe, R T and Lifshitz, K 1985 A behavioural profile of stumptailed macaques (Macaca arctoides). Primates 26: 143160CrossRefGoogle Scholar
O’Neill, P L 1989 A room with a view for captive primates: issues, goals, related research and strategies. In: Novak, M A and Petto, A J (eds) Through the Looking Glass: Issues of Psychological Weil-Being in Captive Nonhuman Primates pp 135160. American Psychological Association: Washington, USAGoogle Scholar
Pereira, M E, Macedonia, J M, Haring, D M and Simson, E L 1989 Maintenance of primates in captivity for research: the need for naturalistic environments. In: Segal, E F (ed) Housing, Care and Psychological Wellbeing of Captive and Laboratory Primates pp 4060. Noyes Publications: Park Ridge, USAGoogle Scholar
Petto, A J 1994 Responses to survey on ethical principles in primatology. Laboratory Primate Newsletter 33(3): 37Google Scholar
Phillippi-Falkenstein, K and Clarke, M R 1992 Procedure for training corral-living rhesus monkeys for fecal and blood-sample collection. Laboratory Animal Science 42: 8385Google ScholarPubMed
Post, W and Baulu, J 1978 Time budgets of Macaca mulatta. Primates 19: 125140Google Scholar
Ranheim, S and Reinhardt, V 1989 Compatible rhesus monkeys provide long-term stimulation for each other. Laboratory Primate Newsletter 28(3): 12Google Scholar
Rasmussen, K L R and Reite, M 1982 Loss-induced depression in an adult macaque monkey. American Journal of Psychiatry 139: 679681Google Scholar
Redican, W and Mitchell, G 1973 The social behavior of adult male-inf ant pairs of rhesus macaques in a laboratory environment. American Journal of Physical Anthropology 38: 523526CrossRefGoogle Scholar
Reinhardt, V 1987 Advantages of housing rhesus monkeys in compatible pairs. Scientists Center for Animal Welfare Newsletter 9(3): 36Google Scholar
Reinhardt, V 1989 Behavioral responses of unrelated adult male rhesus monkeys familiarized and paired for the purpose of environmental enrichment. American Journal of Primatology 17: 243248CrossRefGoogle ScholarPubMed
Reinhardt, V 1990a Social enrichment for laboratory primates: a critical review. Laboratory Primate Newsletter 29(3): 711Google Scholar
Reinhardt, V 1990b Time budget of caged rhesus monkeys exposed to a companion, a PVC perch and a piece of wood for an extended time. American Journal of Primatology 20: 5156CrossRefGoogle Scholar
Reinhardt, V 1991a Group formation of previously single-caged adult rhesus macaques for the purpose of environmental enrichment. Journal of Experimental Animal Science 34: 110115Google ScholarPubMed
Reinhardt, V 1991b An environmental enrichment program for caged rhesus monkeys at the Wisconsin Regional Primate Research Center. In: Novak, M A and Petto, A J (eds) Through the Looking Glass: Issues of Psychological Weil-Being in Captive Nonhuman Primates pp 149159. American Psychological Association: Washington, USACrossRefGoogle Scholar
Reinhardt, V 1992a Effective, safe and inexpensive environmental enrichment and improved handling of research rhesus macaques. In: Krulish, L (ed) Implementation Strategies for Research Animal Weil-Being: Institutional Compliance with Regulations pp 121126. Scientists Center for Animal Welfare: Bethesda, USAGoogle Scholar
Reinhardt, V 1992b Transport-cage training of caged rhesus macaques. Animal Technology 43: 5761Google Scholar
Reinhardt, V 1992c Improved handling of experimental rhesus monkeys. In: Davis, H and Balfour, D (eds) The Inevitable Bond. Examining Scientist-Animal Interactions pp 171177. Cambridge University Press: Cambridge, UKGoogle Scholar
Reinhardt, V 1994a Survey of environmental enrichment for research macaques. Laboratory Primate Newsletter 33(3): 12Google Scholar
Reinhardt, V 1994b Continuous pair-housing of caged Macaca mulatta: risk evaluation. Laboratory Primate Newsletter 33(1): 14Google Scholar
Reinhardt, V 1994c Social enrichment for previously single-caged stumptail macaques. Animal Technology 45: 3741Google Scholar
Reinhardt, V 1994d Pair-housing rather than single-housing for laboratory rhesus macaques. Journal of Medical Primatology 23: 426431CrossRefGoogle ScholarPubMed
Reinhardt, V and Cowley, D 1990 Training stumptailed monkeys to cooperate during in-home-cage treatment. Laboratory Primate Newsletter 29(4): 910Google Scholar
Reinhardt, V and Cowley, D 1992 In-homecage blood collection from conscious stumptailed macaques. Animal Welfare 1: 249255CrossRefGoogle Scholar
Reinhardt, V, Cowley, D and Eisele, S 1991 Serum Cortisol concentrations of single-housed and isosexually pair-housed adult rhesus macaques. Journal of Experimental Animal Science 34: 7376Google ScholarPubMed
Reinhardt, V, Cowley, D, Eisele, S, Vertein, R and Houser, D 1988b Pairing compatible female rhesus monkeys for the purpose of cage enrichment has no negative impact on body weight. Laboratory Primate Newsletter 27(1): 1315Google Scholar
Reinhardt, V, Houser, D, Cowley, D, Eisele, S and Vertein, R 1989 Alternatives to single caging of rhesus monkeys (Macaca mulatta) used in research. Zeitschrift für Versuchstierkunde 32: 275279Google ScholarPubMed
Reinhardt, V, Houser, W D, Eisele, S G and Champoux, M 1987b Social enrichment with infants of the environment for singly caged adult rhesus monkeys. Zoo Biology 5: 365371CrossRefGoogle Scholar
Reinhardt, V, Houser, W, Eisele, S, Cowley, D and Vertein, R 1988a Behavior responses of unrelated rhesus monkey females paired for the purpose of environmental enrichment. American Journal of Primatology 14: 135140CrossRefGoogle ScholarPubMed
Reinhardt, V and Hurwitz, S 1993 Evaluation of social enrichment for aged rhesus macaques. Animal Technology 44: 5357Google Scholar
Reinhardt, V and Reinhardt, A 1991 Impact of a privacy panel on the behavior of caged female rhesus monkeys living in pairs. Journal of Experimental Animal Science 34: 5558Google ScholarPubMed
Reinhardt, V, Reinhardt, A, Eisele, S, Houser, D and Wolf, J 1987a Control of excessive aggressive disturbance in a heterogeneous troop of rhesus monkeys. Applied Animal Behaviour Science 18: 371377CrossRefGoogle Scholar
Reite, M R, Harbeck, R and Hoffman, A 1981 Altered cellular immune response following peer separation. Life Sciences 29: 11331136CrossRefGoogle ScholarPubMed
Rhine, R J and Cox, R L 1989 How not to enlarge a stable group of stumptailed macaques (Macaca arctoides). In: Segal, E F (ed) Housing, Care and Psychological Wellbeing of Captive and Laboratory Primates pp 255269. Noyes Publications: Park Ridge, USAGoogle Scholar
Rhine, R J and Kronwetter, C 1972 Interaction patterns of two newly formed groups of stumptailed macaques (Macaca arctoides). Primates 13: 1933CrossRefGoogle Scholar
Rolland, R M 1991 A prescription for psychological well-being. In: Novak, M A and Petto, A J (eds) Through the Looking Glass: Issues of Psychological Weil-Being in Captive Nonhuman Primates pp 129134. American Psychological Association: Washington, USACrossRefGoogle Scholar
Rowell, T E and Hinde, R A 1963 Responses of rhesus monkeys to mildly stressful situations. Animal Behaviour 11: 235243CrossRefGoogle Scholar
Riimpler, U 1992 Beschèftigungsmoeglichkeiten bei Primaten im Zoo. Zeitschrift des Kölner Zoo 35(2): 4768Google Scholar
Ruppenthal, G C, Walker, C G and Sackett, G P 1991 Rearing infant monkeys (Macaca nemestrina) in pairs produces deficient social development compared with rearing in single cages. American Journal of Primatology 25: 103113CrossRefGoogle ScholarPubMed
Samuels, A and Henrickson, R V 1983 Outbreak of severe aggression in captive Macaca mulatta. American Journal of Primatology 5: 277281CrossRefGoogle ScholarPubMed
Schapiro, S J and Bloomsmith, M A 1994 Behavioral effects of enrichment on pair-housed juvenile rhesus monkeys. American Journal of Primatology 32: 159170CrossRefGoogle ScholarPubMed
Schapiro, S J, Bloomsmith, M A, Kessel, A L and Shively, C A 1993 Effects of enrichment and housing on Cortisol response in juvenile rhesus monkeys. Applied Animal Behaviour Science 37: 251263CrossRefGoogle Scholar
Schapiro, S J, Bloomsmith, M A, Kessel, A L, Bushong, D and Keeling, M E 1991 Effects of environmental enrichment on the social behavior of pair-housed juvenile specific pathogen free (SPF) rhesus monkeys. American Journal of Primatology 24: 133134 (Abstract)Google Scholar
Schapiro, S J and Bushong, D 1994 Effects of enrichment on veterinary treatment of laboratory rhesus macaques (Macaca mulatta). Animal Welfare 3: 2536CrossRefGoogle Scholar
Schapiro, S J, Lee-Parritz, D E, Taylor, L L, Watson, L, Bloomsmith, M A and Petto, A 1994 Behavioral management of specific pathogen-free rhesus macaques: group formation, reproduction, and parental competence. Laboratory Animal Science 44: 229234Google ScholarPubMed
Schwind, C, Lessnau, R G and Taylor, L L 1992 An adult male rhesus macaque adopts an orphaned female infant. American Journal of Primatology 27: 57 (Abstract)Google Scholar
Segal, E F 1989 Preface. In: Segal, E F (ed) Housing, Care and Psychological Wellbeing of Captive and Laboratory Primates pp vii-xv. Noyes Publications: Park Ridge, USAGoogle Scholar
Shively, C A, Clarkson, T B and Kaplan, J R 1989 Social deprivation and coronary artery atherosclerosis in female cynomolgus monkeys. Atherosclerosis 77: 6976CrossRefGoogle ScholarPubMed
Smith, E O 1981 Device for capture and restraint of nonhuman primates. Laboratory Animal Science 31: 305306Google ScholarPubMed
Southwick, C H 1967 An experimental study of intragroup agonistic behavior in rhesus monkeys (Macaca mulatta). Behaviour 28: 182209CrossRefGoogle ScholarPubMed
Stanton, M E, Patterson, J M and Levine, S 1985 Social influences on conditioned Cortisol secretion in the squirrel monkey. Psychoneuroendocrinolgy 10: 125134CrossRefGoogle ScholarPubMed
Suomi, S J, Eisele, C D, Grady, S A and Harlow, H F 1975 Depressive behavior in adult monkeys following separation from family environment. Journal of Abnormal Psychology 84: 576578CrossRefGoogle ScholarPubMed
Taff, M A and Dolhinow, P 1989 Langur monkeys (Presbytis entellus) in captivity. In: Novak, M A and Petto, A J (eds) Through the Looking Glass: Issues of Psychological Weil-Being in Captive Nonhuman Primates pp 291304. American Psychological Association: Washington, USAGoogle Scholar
Taylor, G T 1981 Fear and affiliation in domesticated male rats. Journal of Comparative and Physiological Psychology 95: 685694CrossRefGoogle Scholar
Teas, J, Ritchie, T, Taylor, H and Southwick, C 1980 Population patterns and behavioural ecology of rhesus monkeys (Macaca mulatta) in Nepal. In: Lindburg, D G (ed) The Macaques pp 247262. Van Nostrand Reinhold: New York, USAGoogle Scholar
Tokuda, K and Jensen, G D 1969 Determinations of dominance hierarchy in a captive group of pigtailed monkeys (Macaca nemestrina). Primates 10: 227236CrossRefGoogle Scholar
US Department of Agriculture 1991 Animal welfare; standards; final rule. Federal Register 56: 64266505Google Scholar
Vandenbergh, J G 1989 Issues related to “psychological well-being” in nonhuman primates. American Journal of Primatology 1: 915Google Scholar
Vertein, R and Reinhardt, V 1989 Training female rhesus monkeys to cooperate during in-homecage venipuncture. Laboratory Primate Newsletter 28(2): 13Google Scholar
Visalberghi, E and Anderson, J R 1993 Reasons and risks associated with manipulating captive primates’ social environments. Animal Welfare 2: 315CrossRefGoogle Scholar
Washburn, D A, Harper, S and Rumbaugh, D M 1994 Computer-task testing of rhesus monkeys (Macaca mulatta) in the social milieu. Primates 35: 343351CrossRefGoogle ScholarPubMed
Whitney, R A and Wickings, E J 1987 Macaques and other old world simians. In: Poole, T B (ed) The UFAW Handbook on the Care & Management of Laboratory Animals, 6th edition pp 599627. Longman Scientific & Technical: Harlow, UKGoogle Scholar
Willott, J F and McDaniel, J 1974 Changes in the behavior of laboratory-reared rhesus monkeys following the threat of separation. Primates 15: 321326CrossRefGoogle Scholar
Wolff, A and Ruppert, G 1991 A practical assessment of a non-human primate exercise program. Lab Animal 20(2): 3639Google Scholar
Woolverton, W L, Ator, N A, Beardsley, P M and Carroll, M E 1989 Effects of environmental condition on the psychological well-being of primates. A review of the literature. Life Sciences 44: 901917CrossRefGoogle ScholarPubMed