Evaluation of an enrichment programme for a colony of long-tailed macaques (Macaca fascicularis) in a rescue centre
Long-tailed macaques are highly social primates that are commonly used in biomedical research as animal models. The aim of this study was to evaluate the effects of different kinds of enrichment on the behaviour and faecal cortisol metabolite (FCM) level in a colony of ex-laboratory long-tailed macaques during a programme of rehabilitation. The research was […]
Behavior, Appetite, and Urinary Cortisol Responses by Adult Female Pigtailed Macaques to Cage Size, Cage Level, Room Change, and Ketamine Sedation
Pigtailed macaques (Macaca nemestrina) and longtailed macaques (M. fascicularis) show behavioral, ecological, and possible temperament differences, and their responses to the laboratory environment might therefore be quite different. We tested pigtailed macaques under the same conditions that were investigated in a previous study with longtailed macaques, using the same comprehensive set of physiological and behavioral […]
Melatonin promotes sleep in three species of diurnal nonhuman primates
Nocturnal melatonin secretion is concurrent with consolidated sleep episodes in diurnal mammals and physiological melatonin levels can promote sleep onset in humans and in pigtail macaques. In order to further investigate the effects of melatonin treatment on sleep parameters in diurnal nonhuman primates, three macaque species have been studied: Macaca nemestrina, Macaca fascicularis, and Macaca […]
Diet, Activity, Habitat Use, and Ranging of Two Neighboring Groups of Food-Enhanced Long-Tailed Macaques (Macaca fascicularis)
We conducted observations of two neighboring groups of food-enhanced long-tailed macaques (Macaca fascicularis) over a period of one year. We examined their diet, behavior, habitat use, and ranging and how within-population variability reflected differential utilization of anthropogenic food resources. The group that consumed more anthropogenic food spent less time feeding on wild fruits and flowers, […]
Effect of living conditions on biochemical and hematological parameters of the cynomolgus monkey
The cynomolgus monkey (Macaca fascicularis) has been increasingly used in biomedical research. Although living conditions affect behavioral and physiological characteristics in macaques, little data is available on how living conditions influence blood-based parameters in the cynomolgus monkey. We hypothesize that there are significant differences in serum biochemical and hematological parameters in single-caged versus socially housed […]