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

**Authors:** Niamh Mc Gill, Miguel Bueno, Neil E. Anderson

PMC · DOI: 10.1017/awf.2025.10021 · 2025-07-29

## TL;DR

This paper adapts the EU Welfare Quality® framework to create a welfare assessment protocol for captive chimpanzees, focusing on promoting positive welfare.

## Contribution

The first adaptation of the Welfare Quality® protocol for chimpanzees using species-specific indicators.

## Key findings

- 14 animal-based and 16 resource-based welfare indicators were identified for chimpanzees.
- The adapted protocol aligns with the 12 criteria and four principles of Welfare Quality®.
- The study demonstrates how to develop species-specific welfare tools using natural history and biology.

## Abstract

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 need for zoos to develop and validate species-specific welfare assessment tools with a shift in focus away from avoiding negative affective states, and towards promoting positive ones. This shift in emphasis requires the development of comprehensive and robust welfare assessment protocols incorporating species-specific indicators. This study aimed to identify and propose welfare indicators for captive chimpanzees (Pan troglodytes) that could be used to adapt the EU Welfare Quality® protocol for this species. A literature review was carried out according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and the authors followed the principles of a systematic review to identify a comprehensive set of welfare indicators for this species. Overall, 14 animal-based and 16 resource-based indicators are proposed to assess the 12 criteria and four principles of Welfare Quality®. This study represents the first effort to adapt the EU Welfare Quality® protocol to assess captive chimpanzee welfare and illustrates how this protocol can be adapted to develop a taxon-specific welfare assessment tool once species-specific natural history and biology are considered.

## Linked entities

- **Species:** Pan troglodytes (taxon 9598)

## Full-text entities

- **Diseases:** respiratory disease (MESH:D012140), gastrointestinal disease (MESH:D005767), aggression (MESH:D010554), Obesity (MESH:D009765), musculoskeletal and renal disease (MESH:D009140), injuries (MESH:D014947), renal disease (MESH:D007674), dehydration (MESH:D003681), ischaemic myocardial injury (MESH:D009202), occlusive vascular disease (MESH:D008641), anxiety (MESH:D001007), cardiovascular disease (MESH:D002318), pygmy blue-tongue skink (MESH:D001819), overweight (MESH:D050177), sudden collapse and death (MESH:D003645), cardiovascular, gastrointestinal, and respiratory disease (MESH:D012818), disease (MESH:D004194), death (MESH:D003643), pain (MESH:D010146), inflammatory disease (MESH:D007249), infectious disease (MESH:D003141), Interstitial fibrosing cardiomyopathy (MESH:D005355), cardiac arrhythmia (MESH:D001145), cardiac, dental, and gastrointestinal disease (MESH:D006331)
- **Chemicals:** blood glucose (MESH:D001786), PRT (-), lipids (MESH:D008055), carbohydrates (MESH:D002241), water (MESH:D014867)
- **Species:** Macaca (macaque, genus) [taxon 9539], Vulpes lagopus (Arctic fox, species) [taxon 494514], Vulpes vulpes (red fox, species) [taxon 9627], Macaca mulatta (rhesus macaque, species) [taxon 9544], Homo sapiens (human, species) [taxon 9606], Tursiops truncatus (Atlantic bottlenose dolphin, species) [taxon 9739], Alocasia macrorrhizos (ape, species) [taxon 4456], Bos taurus (bovine, species) [taxon 9913], Neogale vison (American mink, species) [taxon 452646], Gazella dorcas (Dorcas gazelle, species) [taxon 37751], Pan troglodytes (chimpanzee, species) [taxon 9598]

## Figures

7 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12304783/full.md

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Source: https://tomesphere.com/paper/PMC12304783