Nonhuman Primate

Validation of body condition scoring as a screening test for low body condition and obesity in common marmosets (Callithrix jacchus)

Assessing body weight is common practice for monitoring health in common marmosets (Callithrix jacchus). Body composition analysis via quantitative magnetic resonance (QMR) is a more in-depth assessment allowing measurements of lean and fat mass, but it is expensive and remains...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Marmoset, Nonhuman Primate

Citation: Arroyo, J. P., Alvarez, A., Alvarez, L. et al. 2025. Validation of body condition scoring as a screening test for low body condition and obesity in common marmosets (Callithrix jacchus). American Journal of Primatology 87(8), e70068.

The effects of artificial UV-B provision on positional sleeping behaviour and vitamin D3 metabolites of captive aye-ayes (Daubentonia madagascariensis)

Zoological environments aim to promote natural behaviours and optimal welfare conditions. Over the past decade, research on the use of artificial ultraviolet-B (UV-B) exposure has improved vitamin D3 levels and reduced incidences of metabolic bone disease in diurnal primates; however,...

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

Citation: Walker, D., Bwye, P., Richdon, S. 2025. The effects of artificial UV-B provision on positional sleeping behaviour and vitamin D3 metabolites of captive aye-ayes (Daubentonia madagascariensis). Journal of Zoological and Botanical Gardens 6(3), 39.

Selection of animal welfare indicators for primates in rescue centres using the Delphi method: Cebus albifrons as a case study

Wildlife rescue centres face considerable challenges in promoting animal welfare and enhancing the care and housing conditions of animals under professional supervision. These challenges are further compounded by the diversity of species admitted, each with distinct specific needs. In Colombia...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Capuchin, Nonhuman Primate

Citation: Pereira Bengoa, V. E., Manteca, X. 2025. Selection of animal welfare indicators for primates in rescue centres using the Delphi method: Cebus albifrons as a case study. Animals 15(17), 2473.

Affective responses and behavioral strategies to social fusion events in zoo-housed bonobos

Species with fission-fusion dynamics may face heightened social tension during fusion events due to relationship insecurity and competition over resources. Affective consequences of such events are important determinants for behavioral responses, yet remain poorly understood. To evaluate the affective consequences...

Year Published: 2025Topics: Natural Behavior, Social Housing & CompanionshipAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Laméris, D. W., Verspeek, J., Salas, M. et al. 2025. Affective responses and behavioral strategies to social fusion events in zoo-housed bonobos. Animal Behavior and Cognition 12(3), 300–329.

Marm-ite moments: Enriching marmoset behaviour with the 3Rs

It is well documented that activity levels of non-human primates (NHPs) are reduced in captivity, particularly in laboratory settings where space and enclosure design are limited.1 The 3Rs encourages researchers to refine their care of protected species by increasing the...

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

Citation: Horsfield, A., Witts, N., Maishman, T. 2025. Marm-ite moments: Enriching marmoset behaviour with the 3Rs. Animal Technology and Welfare 24(2), 160–164.

Positive reinforcement training: Old world NHPs

Positive reinforcement training (PRT) is increasingly used to refine scientific and husbandry procedures involving Old-World nonhuman primates (NHPs) around the globe. PRT provides mental stimulation as well as reduces stress for NHPs. This will lead to better overall wellbeing and...

Year Published: 2025Topics: Animal TrainingAnimal Type: Macaque, Nonhuman Primate

Citation: Harbin, T. 2025. Positive reinforcement training: Old world NHPs. Animal Technology and Welfare 24(2), 165–167.

Using the Welfare Quality® framework to develop a welfare assessment protocol for captive chimpanzees (Pan troglodytes)

Good welfare is of inherent value to all captive animals and promotes species conservation objectives. Concern for animal welfare is growing globally, and research shows that animal welfare is a top priority for zoo visitors. There is, therefore, an urgent...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Gill, N. M., Bueno, M., Anderson, N. E. 2025. Using the Welfare Quality® framework to develop a welfare assessment protocol for captive chimpanzees (Pan troglodytes). Animal Welfare 34, e54.

An enrichment programme for group housed Rhesus macaques (Macaca mulatta)

The Centre for Macaques (CFM) houses Rhesus Macaques (Macaca mulatta) in groups of 2 to 18 individuals with ages ranging from birth to 16 years. We strive to create a comprehensive enrichment program with a variety of diverse types catering...

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

Citation: Fretton, G., Osborn, O. 2025, August An enrichment programme for group housed Rhesus macaques (Macaca mulatta). Animal Technology and Welfare 24(2), 144–148.

Behavioral and spatial analysis of a Symphalangus syndactylus pair in a controlled environment

For the effective management of captive animals, monitoring their behavior and interactions within the exhibit is essential. This approach provides insights into their welfare and helps identify behavioral differences compared to conspecifics in the wild. This ex situ study aimed...

Year Published: 2025Topics: Natural BehaviorAnimal Type: Gibbon, Nonhuman Primate

Citation: Carpino, C., Castiglioni, R., Sacchet, E. et al. 2025. Behavioral and spatial analysis of a Symphalangus syndactylus pair in a controlled environment. Journal of Zoological and Botanical Gardens 6(2), 23.

From Fish to Mice to Monkeys in Research: Challenges and Opportunities for Mental Well-being

This chapter focuses mainly on animals in medical research. Many, especially the smaller species such as rat, mice, and zebrafish, may be seen only a few minutes a day by their human caregivers. Most laboratory animals are kept in confinement...

Year Published: 2025Topics: Abnormal/Problematic Behavior, Emotion, Pain, & Sentience, Environmental Enrichment, Handling, Housing, Human-Animal Interaction, Husbandry & Management, Natural Behavior, Regulations & Ethical Review, Social Housing & CompanionshipAnimal Type: All/General, Fish, Macaque, Marmoset, Mouse, Nonhuman Primate, Rat, Rodent, Zebrafish

Citation: Serageldine, C. E., Robinson-Junker, A., Alvino, G. et al. 2025. From Fish to Mice to Monkeys in Research: Challenges and Opportunities for Mental Well-being. In Mental Health and Well-being in Animals (pp. 308–322).