Refinement Database

Database on Refinement of Housing, Husbandry, Care, and Use of Animals in Research

This database, created in 2000, is updated every four months with newly published scientific articles, books, and other publications related to improving or safeguarding the welfare of animals used in research.

Tips for using the database:

  • This landing page displays all of the publications in the database.
  • Use the drop-down menus to filter these publications by Animal Type, Setting, and/or Topic.
  • Clicking on a parent category (e.g., Rodent) will include publications relating to all the items in that category (e.g., Chinchilla, Gerbil, Guinea Pig, etc.).
  • You may also add a keyword to further narrow your search.
  • Please note that at this time, only publications dated 2010 or later (with some exceptions) can be filtered by Animal Type and Topic, and only publications dated 2020 or later (with some exceptions) can be filtered by Setting. Most publications older than 2010 can only be searched by keyword. 
Golledge, H., Richardson, C. (Eds.) 2024. The UFAW Handbook on the Care and Management of Laboratory and Other Research Animals (9th ed.). Wiley-Blackwell. 1040 p.

The latest edition of the seminal reference on the care and management of laboratory and research animals. The newly revised ninth edition of The UFAW Handbook on the Care and Management of Laboratory and Other...

Ermers, C., McGilchrist, N., Fenner, K. et al. 2023. The fibre requirements of horses and the consequences and causes of failure to meet them. Animals 13(8), 1414.

Failure to meet the minimum forage requirement of 1.5% of the horse’s bodyweight and the opportunity for foraging for a minimum of 8 h a day (not going without this opportunity longer than four to...

Neal Webb, S., Schapiro, S. 2023. Locomotion as a measure of well-being in captive chimpanzees (Pan troglodytes). Animals 13(5), 803.

Locomotion in non-human primates, including walking, climbing, and brachiating among other types of movement (but not pacing), is a species-typical behavior that varies with age, social housing conditions, and environmental factors (e.g., season, food availability...

Wong, C.-H., Tsai, M.-A., Ko, F.-C. et al. 2023. Skin cortisol and acoustic activity: Potential tools to evaluate stress and welfare in captive cetaceans. Animals 13(9), 1521.

As people’s focus broadens from animals on farms to zoos and aquaria, the field of welfare science and the public’s concern for animal welfare continue to grow. In captive animals, stress and its causes are...

Tédonzong, L. R. D., Ndju'u, M. B. M., Tchamba, M. et al. 2023. The influence of vegetation structure on sleeping site selection by chimpanzees (Pan troglodytes troglodytes). American Journal of Primatology 85(7), e23505.

Sleep is an important aspect of great ape life; these animals build sleeping platforms every night. In a community of chimpanzees, each subgroup selects a sleeping site where each individual builds a sleeping platform, mostly...

Kastelic, M., Gregurić Gračner, G., Tomažič, I. et al. 2023. Comparison of cortisol concentrations in different matrices in Alpine ibex (Capra ibex) at the zoo. Animals 13(15), 2491.

The usefulness of blood collection using venipuncture versus kissing bugs or medicinal leeches and the collection of saliva, faeces, hair, urine, and tears for measuring “immunoreactive” C (iC) concentration in Alpine ibexes was verified using...

Putyora, E., Brocklehurst, S., Sandilands, V. 2023. The effects of commercially-relevant disturbances on sleep behaviour in laying hens. Animals 13(19), 3105.

Ensuring the welfare of commercially kept animals is a legal and ethical responsibility. Sleep behaviour can be sensitive to environmental perturbations and may be useful in assessing welfare state. The objective of this study was...

Cordoni, G., Ciarcelluti, G., Pasqualotto, A. et al. 2023. Is it for real? Structural differences between play and real fighting in adult chimpanzees (Pan troglodytes). American Journal of Primatology 85(9), e23537.

In primates, as well as in other mammals, play fighting (PF) is a complex form of playful activity that is structurally similar to real fighting (RF) and may also be used in a competitive way...

Hube, D., van Meegen, C., Herbrandt, S. et al. 2023. Hair corticosterone concentration as a potential stress marker in pet rabbits. Veterinary Record 193(9), e3464.

Background As a prey species, rabbits tend to hide their illnesses and injuries. Consequently, pet rabbit owners often do not notice that their pet may be suffering. Methods Data on the housing and health of...

Rosati, A. G., Sabbi, K. H., Bryer, M. A. H. et al. 2023. Observational approaches to chimpanzee behavior in an African sanctuary: Implications for research, welfare, and capacity-building. American Journal of Primatology 85(9), e23534.

Research in African ape sanctuaries has emerged as an important context for our understanding of comparative cognition and behavior. While much of this work has focused on experimental studies of cognition, these animals semi-free-range in...

Escribano, D., Doldán-Martelli, V., Cronin, K. A. et al. 2022. Chimpanzees organize their social relationships like humans. Scientific Reports 12(1), 16641.

Human relationships are structured in a set of layers, ordered from higher (intimate relationships) to lower (acquaintances) emotional and cognitive intensity. This structure arises from the limits of our cognitive capacity and the different amounts...

Greening, L., McBride, S. 2022. A review of equine sleep: Implications for equine welfare. Frontiers in Veterinary Science 9, 916737.

Sleep is a significant biological requirement for all living mammals due to its restorative properties and its cognitive role in memory consolidation. Sleep is ubiquitous amongst all mammals but sleep profiles differ between species dependent...

Kulyar, M. F.-A., Ashfaq, K., Aqib, A. I. et al. 2022. Enhanced healing activity of manuka honey and nitrofurazone composite in full-thickness burn wounds in the rabbit model. Frontiers in Veterinary Science 9, 875629.

Burns cause many significant changes in metabolism and inflammatory reactions, leading to poor regeneration in animals and humans. A list of medicines to treat burns is available in the market. But due to the high...

Petek, M.,Çavuşoğlu, E. 2021. Welfare assessment of two free-range laying hen flocks in Turkey. Journal of Applied Animal Welfare Science 24(1), 56-63.

This study aimed to determine the prevalence of keel bone deviations and feather damage of laying hens in two different free-range housing systems under commercial conditions. Both of the free-range systems had an indoor barn...

Tahamtani, F. M., Herskin, M. S., Foldager, L. et al. 2021. Assessment of mobility and pain in broiler chickens with identifiable gait defects. Applied Animal Behaviour Science 234, 105183.

Gait defects, assessed as gait score (GS), is a common welfare problem in broiler chicken production. The aim of this study was to examine whether birds with GS2 experience pain and poor locomotor ability compared...

Coleman, K., Shapiro, S. J. (Eds.). 2021. Behavioral Biology of Laboratory Animals (1st ed). CRC Press, Boca Raton, FL.

This 30-chapter volume informs students and professionals about the behavioral biology of animals commonly housed in laboratory and other captive settings. Each species evolved under specific environmental conditions, resulting in unique behavioral patterns, many of...

Sørensen, D., Cloutier, S., Gaskill, B. (Eds.). 2021. Animal-centric Care and Management - Enhancing Refinement in Biomedical Research. CRC Press, Boca Raton, FL.

The concept of the 3Rs (Refinement, Reduction and Replacement) has been used as a framework for improving the welfare of laboratory animals for the last half century. By establishing an animal-centric view on housing and...

Reckendorf, A., Schmicke, M., Bunskoek, P. et al. 2021. Is harbor porpoise (Phocoena phocoena) exhaled breath sampling suitable for hormonal assessments? Animals 11(3), 907.

Over the last decades, exhaled breath sampling has been established for laboratory analysis in various cetacean species. Due to their small size, the usability of respiratory vapor for hormone assessments was questionable in harbor porpoises...

Chmurska-Gąsowska, M., Sowińska, N., Pałka, S. et al. 2021. Non-invasive measurement of thyroid hormones in domestic rabbits. Animals 11(5), 1194.

Thyroid hormones are essential for metabolism, energy homeostasis and reproduction. Hormones can be measured in various biological source materials: blood, feces, urine, saliva and others. The aim of our study was to verify usefulness of...

Krueger, K., Esch, L., Farmer, K. et al. 2021. Basic needs in horses?—A literature review. Animals 11(6), 1798.

Every animal species has particular environmental requirements that are essential for its welfare, and when these so-called “basic needs” are not fulfilled, the animals suffer. The basic needs of horses have been claimed to be...

Delfour, F., Vaicekauskaite, R., García-Párraga, D. et al. 2021. Behavioural diversity study in bottlenose dolphin (Tursiops truncatus) groups and its implications for welfare assessments. Animals 11(6), 1715.

In the recent past, animal welfare studies have tried to determine the best animal welfare measures and indicators. Expression of behavioural diversity is considered a potential positive welfare indicator, and to the authors’ knowledge, it...

Soriano Jimenez, A. I., Drago, M., Vinyoles, D. et al. 2021. Play behavior in two captive bottlenose dolphin calves (Tursiops Truncatus): Ethogram, ontogeny, and individual differences. Journal of Applied Animal Welfare Science 24(3), 292-320.

This research focused on different aspects of play behavior including ethogram, ontogeny, and individual differences, in one male and one female captive bottlenose dolphin calves (Tursiops truncatus) from November 2003 to June 2004. We presented...

Kittelsen, K. E., Gretarsson, P., Jensen, P. et al. 2021. Keel bone fractures are more prevalent in White Leghorn hens than in Red Jungle fowl hens—A pilot study. PLOS ONE 16(7), e0255234.

Fractures and deviations to the keel bone are common in commercial laying hens, with reported variations in occurrence across strains and breeds. The aetiology is not fully understood, however, modern genetics and selection for efficient...

Hall, K., Bryant, J., Staley, M. et al. 2021. Behavioural diversity as a potential welfare indicator for professionally managed chimpanzees (Pan troglodytes): Exploring variations in calculating diversity using species-specific behaviours. Animal Welfare 30(4), 381-392.

Behavioural diversity may serve as a positive indicator of animal welfare that can be applied in long-term monitoring schemes in managed settings (eg zoos, laboratories, farms). Behavioural diversity is often higher when animals live in...

Jacobs, L., Melick, S., Freeman, N. et al. 2021. Broiler chicken behavior and activity are affected by novel flooring treatments. Animals 11(10), 2841.

The objective was to determine broiler chicken behavioral differences in response to novel flooring treatments. Broilers (n = 182) were housed in 14 pens (a random subset from a larger-scale study including 42 pens), with...