Nonhuman Primate

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.

The importance of novel and cognitive enrichment for captive chimpanzees (Pan troglodytes) and the use of activity budgets and social network analysis to assess welfare (2025)

I introduced foraging enrichment with a cognitive component to a group of six captive adult chimpanzees living at ZSL Whipsnade Zoo in Dunstable in the United Kingdom. I conducted preliminary behavioural observations for 13 days spread over a four week...

Year Published: 2025Topics: Environmental EnrichmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Stitt, A. E. 2025. The importance of novel and cognitive enrichment for captive chimpanzees (Pan troglodytes) and the use of activity budgets and social network analysis to assess welfare. Canopy 25(2).

Advancing non-human primate welfare: An automated facial recognition system for unrestrained cynomolgus monkeys (2025)

Cynomolgus monkeys (Macaca fascicularis) are vital in biomedical research, particularly for drug development and studying neurological diseases. However, accurately identifying individuals in group housing environments remains a significant challenge. This paper presents a near real-time facial recognition system tailored for...

Year Published: 2025Topics: Identification MethodAnimal Type: Macaque, Nonhuman Primate

Citation: Numata, Y., Sumali, B., Hayashida, K. et al. 2025. Advancing non-human primate welfare: An automated facial recognition system for unrestrained cynomolgus monkeys. PLOS ONE 20(4), e0319897.

Social enrichment to reduce pacing in a solitary housed male lion-tailed macaque Macaca silenus (2025)

Environmental enrichment is frequently used to improve the captive environment, aiming to enhance the quality of captive animal care. Social enrichment is considered to be the most effective form of enrichment for captive primates, particularly in the reduction of abnormal...

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

Citation: Newman, R., Quirke, T., McKeown, S. et al. 2025. Social enrichment to reduce pacing in a solitary housed male lion-tailed macaque Macaca silenus. Journal of Zoo and Aquarium Research 13(1), 52–55.

A metric-based, meta-analytic appraisal of environmental enrichment efficacy in captive primates (2025)

Non-human primates (hereafter ‘primates') constitute a common group of animals in captivity but their captive maintenance involves ethical and husbandry issues, many of which can be addressed through environmental enrichment (hereafter ‘enrichment'). Enrichment is often applied in a trial-and-error fashion...

Year Published: 2025Topics: Environmental Enrichment, Social Housing & CompanionshipAnimal Type: Baboon, Capuchin, Chimpanzee, Gibbon, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Duncan, L. M., Pillay, N. 2025. A metric-based, meta-analytic appraisal of environmental enrichment efficacy in captive primates. Animals 15(6), 799.