Macaque

Affiliative interactions between singly-housed rhesus macaques in adjacent unmodified cages

Both males and females interacted with neighbors with a mean frequency of three times per hour; affiliative behavior made up approximately 60% of male-male interactions and 90% of female-female interactions. ... The extent of both male-male and female-female affiliation, despite...

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Baker, K. C. 1999. Affiliative interactions between singly-housed rhesus macaques in adjacent unmodified cages. American Journal of Primatology 49, 30 (Abstract).

Effect of tryptophan treatment on self-biting andcentral nervous system serotonin metabolism in rhesus monkeys (Macaca mulatta)

Two studies were conducted to examine the effects of oral L-tryptophan (TRP) supplementation as a treatment for self-injurious behavior (SIB) and to investigate behavior and central serotonin turnover of male rhesus monkeys. In Study One, TRP was administered to seven...

Year Published: 1998Animal Type: Macaque, Nonhuman Primate

Citation: Weld, K. P., Mench, J. A., Woodward, R. A. et al. 1998. Effect of tryptophan treatment on self-biting andcentral nervous system serotonin metabolism in rhesus monkeys (Macaca mulatta). Neuropsychopharmacology 19, 314-322.

Effects of chronic social separation on cardiovascular disease risk factors in female cynomolgus monkeys

A lack of social support is associated with increased risk of coronary heart disease morbidity and mortality in human beings. Similarly, chronic social separation (single cage housing) potentiates atherosclerosis in female monkeys. Heart rate and luteal phase plasma progesterone concentrations...

Year Published: 1998Animal Type: Macaque, Nonhuman Primate

Citation: Watson, S. L., Shively, C. A., Kaplan, J. R. et al. 1998. Effects of chronic social separation on cardiovascular disease risk factors in female cynomolgus monkeys. Atherosclerosis 137, 259-266.

Heart rate patterns in rhesus monkeys with self-injurious behavior (SIB): Are these monkeys high reactors?

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Chase, W. K., Marinus, L. M., Jorgensen, M. J. et al. 1999. Heart rate patterns in rhesus monkeys with self-injurious behavior (SIB): Are these monkeys high reactors? . American Journal of Primatology 49(1), 42-43 (Abstract).

Hot tubs for snow monkeys

Hot tubs for snow monkeys are described.

Year Published: 1999Topics: Environmental EnrichmentAnimal Type: Macaque, Nonhuman Primate

Citation: Goodwin, J. 1999. Hot tubs for snow monkeys. The Shape of Enrichment 8(3), 13.

Warning: Rope in environmental enrichment

I have more than once recommended to people involved in environmental enrichment for macaques that sisal rope hanging outside of a cage made an excellent low-cost enrichment item for singly-housed macaques; they enjoy grooming, chewing, and pulling on it. However,...

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Eckert, K. 1999. Warning: Rope in environmental enrichment. Laboratory Primate Newsletter 38(4), 3.

Self-injurious behavior is decreased by cyproterone acetate in adult male rhesus (Macaca mulatta)

Self-injurious behavior (SIB) presents a serious problem in laboratory macaques that cannot be socially housed forscientific reasons and among institutionalized children and adults where it is often associated with different forms ofbrain dysfunction. We have experienced limited success in reducing...

Year Published: 1999Topics: Abnormal/Problematic BehaviorAnimal Type: Macaque, Nonhuman Primate

Citation: Eaton, G. G., Worlein, J. M., Kelley, S. T. et al. 1999. Self-injurious behavior is decreased by cyproterone acetate in adult male rhesus (Macaca mulatta). Hormones and Behavior 35, 195-203.

Social housing and pregnancy outcome in captive pigtailed macaques

A greater number of moves decreased the probability of a viable birth and increased gestation length and the need for clinical treatment of the dam, while increased group size decreased gestation length. Increased moves and group size may increase stress...

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Ha, J. C., Robinette, R. L., Sackett, G. P. 1999. Social housing and pregnancy outcome in captive pigtailed macaques. American Journal of Primatology 47, 153-163.

Collecting blood of macaques: An often overlooked variable in biomedical research

The findings of this survey suggest that many investigators do not recognize that the traditional manner of collecting blood can introduce uncontrolled stress variables into research findings, leading to increased data variability and therefore increasing the number of experimental animals...

Year Published: 1999Topics: Biological Sampling & Physiological MeasurementAnimal Type: Macaque, Nonhuman Primate

Citation: Reinhardt, V. 1999. Collecting blood of macaques: An often overlooked variable in biomedical research. Laboratory Primate Newsletter 38(4), 4-5.

Affiliative behaviors of group housed rhesus macaques are altered by positive reinforcement training

Positive reinforcement training may be an effective tool for manipulating affiliative behaviors in rhesus macaques. Such manipulations may have important applications.

Year Published: 1999Animal Type: Macaque, Nonhuman Primate

Citation: Perlman, J. E., Boudreau, B. A., Schapiro, S. J. 1999. Affiliative behaviors of group housed rhesus macaques are altered by positive reinforcement training. American Journal of Primatology 49, 86.