Nonhuman Primate

A computational model to support the welfare-based management of a laboratory colony of common marmosets

Here, a computational model to forecast the population dynamics of a laboratory colony of common marmosets (Callithrix jacchus) is presented. This tool supports decision-making that seeks to maximize welfare and maintain a healthy and genetically diverse colony. The model considers...

Year Published: 2025Topics: Husbandry & ManagementAnimal Type: Marmoset, Nonhuman Primate

Citation: Gillard, J. J. 2025. A computational model to support the welfare-based management of a laboratory colony of common marmosets. Lab Animal 54(5), 120–125.

Should zoo food be chopped for ruffed lemurs? It’s not so black and white

Whole food diets in zoos have the potential to reduce microbial contamination and keeper preparation time, whilst also reducing food nutrient breakdown. Given these benefits, it is important to determine whether there is any value in chopping up food. Lemurs...

Year Published: 2025Topics: Husbandry & ManagementAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Davison, J. M., Hammond, A., Abernethy-Palmer, G. et al. 2025. Should zoo food be chopped for ruffed lemurs? It’s not so black and white. American Journal of Primatology 87(2), e23695.

Cortisol and catecholamine concentrations are affected by repeated relocations of adult female rhesus monkeys (Macaca mulatta)

In captive primate facilities, relocations—moves, within the facility, from one cage to another—can be common events. On the one hand, relocations are generally regarded as relatively benign events, as past studies have generally shown only transient elevations in cortisol concentrations...

Year Published: 2025Topics: Relocation & TransportAnimal Type: Macaque, Nonhuman Primate

Citation: Capitanio, J. P., Tancredi, D. J., Zarrabi, J. et al. 2025. Cortisol and catecholamine concentrations are affected by repeated relocations of adult female rhesus monkeys (Macaca mulatta). American Journal of Primatology 87(6), e70050.

The provision of browse and its impacts on the health and welfare of animals at the zoo: A review

Browsers are animals that consume significant proportions of leaves, twigs, and bark from woody plants. These species have evolved morphological, physiological, and behavioral adaptations to subsist on a specialized diet. In zoos and other managed care facilities, the provision of...

Year Published: 2025Topics: Environmental Enrichment, Husbandry & ManagementAnimal Type: Chimpanzee, Nonhuman Primate, Other Animal, Other Nonhuman Primate

Citation: Ramont, M., Principe, N., Prostko, R. et al. 2025. The provision of browse and its impacts on the health and welfare of animals at the zoo: A review. Zoo Biology 44(2), 105–125.

Exploring the utility of the gut microbiome as a longitudinal health monitoring tool in sanctuary chimpanzees (Pan troglodytes)

The primary goal of captive primate management is to ensure optimal health and welfare of the animals in our care. Given that the gut microbiome interacts closely with host metabolism, immunity, and even cognition, it represents a potentially powerful tool...

Year Published: 2025Topics: Biological Sampling & Physiological Measurement, Husbandry & ManagementAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Amato, K. R., Lake, B. R., Ozminkowski, S. et al. 2025. Exploring the utility of the gut microbiome as a longitudinal health monitoring tool in sanctuary chimpanzees (Pan troglodytes). American Journal of Primatology 87(3), e70004.

An opportunistic study to assess African green monkey (Chlorocebus sabaeus aethiops) welfare using novel and classical biomarkers

The care and well-being of nonhuman primates (NHPs) in biomedical science have benefited from species-specific enrichment research. However, there remain few publications on African green monkey (AGM) welfare and husbandry. This opportunistic study aimed to explore the use of novel...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Nonhuman Primate, Vervet (African Green Monkey)

Citation: Roman, B. C., Hooper, S. E., Beierschmitt, A. M. et al. 2025. An opportunistic study to assess African green monkey (Chlorocebus sabaeus aethiops) welfare using novel and classical biomarkers. Journal of the American Association for Laboratory Animal Science 64(3), 480–487.

Establishing a predictable cue for catches to reduce reactivity to management events for captive rhesus macaques (Macaca mulatta)

Psychological duress can emerge from the perceived lack of predictability such that, in captive circumstances, reliable signals for aversive events can afford animals with the opportunity to behaviorally and physiologically prepare. Does a reliable and unique signal cue for an...

Year Published: 2025Topics: Handling, Husbandry & ManagementAnimal Type: Macaque, Nonhuman Primate

Citation: Pritchard, A. J., Blersch, R. A., Nathman, A. C. et al. 2025. Establishing a predictable cue for catches to reduce reactivity to management events for captive rhesus macaques (Macaca mulatta). Applied Animal Behaviour Science 285, 106578.

Evaluating outcomes of diazepam administration in gradual steps introductions of adult male and female rhesus macaques (Macaca mulatta)

Social housing remains one of the best forms of environmental enhancement for nonhuman primates (NHPs). The gradual steps (GS) method, a 2-step plan involving an initial phase of limited physical contact (protected contact [PC]) prior to full contact (FC), is...

Year Published: 2025Topics: Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Myers, A. K., Baker, K. C., Kubisch, M. J. et al. 2025. Evaluating outcomes of diazepam administration in gradual steps introductions of adult male and female rhesus macaques (Macaca mulatta). Journal of the American Association for Laboratory Animal Science 64(1), 146–154.

Comparison of different formulations of extended-release buprenorphine in perioperative pain management in common marmosets (Callithrix jacchus)

Common marmosets (Callithrix jacchus) are increasingly used in biomedical research and often undergo surgery as part of IACUC-approved protocols. Therefore, pain control is essential to their clinical management and welfare. Extended-release buprenorphine is a valuable opioid analgesic option, as it...

Year Published: 2025Topics: AnalgesiaAnimal Type: Marmoset, Nonhuman Primate

Citation: Mokhtar Pouriani, K., McAndrew, R., Chan, N. et al. 2025. Comparison of different formulations of extended-release buprenorphine in perioperative pain management in common marmosets (Callithrix jacchus). Journal of the American Association for Laboratory Animal Science 64(3), 374–384.

Behavior and safety in the use of canopy bridges by howler monkeys in an experimental environment

Urban sprawl advances over forested areas and threatens arboreal species, which often use roads, power lines, and rooftops to move, resulting in roadkill, electrocution, and dog attacks. One measure to mitigate these risks is the installation of canopy bridges, which...

Year Published: 2025Topics: Environmental Enrichment, HousingAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Dias, P., Teixeira, F. Z., Ferrugem, V. H. C. et al. 2025. Behavior and safety in the use of canopy bridges by howler monkeys in an experimental environment. Applied Animal Behaviour Science 290, 106696.