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. 
Hawkins, P., McNeilly, A., Watson, J. et al. 2017. Report of the 2016 RSPCA/UFAW Rodent and Rabbit Welfare Group meeting. Animal Technology and Welfare 16(2), 77-86.

The RSPCA/UFAW Rodent (and now Rabbit) Welfare Group held a one-day meeting on 1 November 2016 at the University of Edinburgh and was attended by 70 delegates. Presentation topics included refinements in blood sampling rodents...

Carlson, A., Allen, C., Skoumbourdis, E. et al. 2017. Cooked food for non-human primates: A discussion by the Laboratory Animal Refinement & Enrichment Forum. Animal Technology and Welfare 16(2), 124-126.

"Do any of you give cooked food like pasta, potatoes or vegetables to non-human primates? What’s your experience? Do the animals benefit from cooked food; do they like it; does it affect their health in...

Marshall, K., Wolford, H., Martin, L. 2017. Creatively meeting the standards – taking rabbit housing to the next level. Animal Technology and Welfare 16(3), 226-228.

The 8th Edition of the Guide for the Care and Use of Laboratory Animals clarified its language regarding housing social species, specifying that, “Single housing of social species should be the exception…”. This is a...

Zomeño, C., Birolo, M., Zuffellato, A. et al. 2017. Aggressiveness in group-housed rabbit does: Influence of group size and pen characteristics. Applied Animal Behaviour Science 194, 79-85.

The aim of this work was to study how the group size and the number of doorways in a pen may influence the aggressive interactions throughout the reproductive cycle among does kept in a part-time...

Sands, C., Evans, C., Buckmaster, C. A. 2017. The grooming sleeve: Encouraging conspecific-like behavior and strengthening the human-animal bond. Laboratory Animal Science Professional 5(2) (June), 52-53.

The act of grooming has been found to greatly decrease stress, heart rate, and cortisol levels in nonhuman primates; this decrease in stress and cortisol is seen in the animal being groomed, as well as...

Daoudi, S., Badihi, G., Buchanan-Smith, H. 2017. Is mixed-species living cognitively enriching? Enclosure use and welfare in two captive groups of tufted capuchins (Sapajus apella) and squirrel monkeys (Saimiri sciureus). Animal Behavior and Cognition 4(1).

Non-human primates have complex relationships with conspecifics and also other animals with whom they share their habitat in the wild. Some primates, such as capuchin monkeys (Sapajus apella) and squirrel monkeys (Saimiri sciureus), naturally associate...

Averós, X., Beltrán de Heredia I., Ruiz, R. et al. 2016. The impact of group size on welfare indicators of ewes during pregnancy. PLOS ONE 11(11), e0167061.

Group size (GS) and space allowance have major implications for the welfare of production species, however their effects are often confounded. In a previous study we investigated the impact of varying space allowance at constant...

Wallace, P. Y., Asa, C. S., Agnew, M. et al. 2016. A review of population control methods in captive-housed primates. Animal Welfare 25(1), 7-20.

The success of breeding primates in captivity has led to a surplus number of animals in collections. This review examines published journals and key books to investigate the various methods of primate population control. Hormonal...

Hawkins, P., Atkinson, J., Birt, R. et al. 2016. Report of the 2015 RSPCA/UFAW rodent and rabbit welfare group meeting. Animal Technology and Welfare 15(1), 9-22. [Meeting Report]

The RSPCA/UFAW Rodent Welfare Group has held a one-day meeting every autumn for the last 21 years, so that its members can discuss current welfare research, exchange views on rodent welfare issues and share experiences...

Enser, S. 2016. Comparison of housing and welfare of group housed rabbits. Animal Technology and Welfare 15(1), 77-79.

This poster is based on welfare improvements gained from group housing rabbits in floor pens in the new Antibody Production Facility with a focus on development, behaviours and environmental enrichment in both male and female...

Fuller, G., Raghanti, M. A., Dennis, P. M. et al. 2016. A comparison of nocturnal primate behavior in exhibits illuminated with red and blue light. Applied Animal Behaviour Science 184, 126-134.

Over evolutionary time, light from the sun, moon, and stars has provided organisms with reliable information about the passage of time; but modern artificial lighting has drastically altered these cues. Evidence is accumulating that exposure...

Buijs, S., Vangeyte, J., Tuyttens, F. A. M. 2016. Effects of communal rearing and group size on breeding rabbits’ post-grouping behaviour and its relation to ano-genital distance. Applied Animal Behaviour Science, 182, 53-60.

Group housing is becoming the standard for many farm animal species, as it is seen as a more welfare friendly way of keeping gregarious animals. Aggression between female breeding rabbits currently obstructs the implementation of...

Bozicovich, T. F. M., Moura, A. S. A. M. T., Fernandes, S. et al. 2016. Effect of environmental enrichment and composition of the social group on the behavior, welfare, and relative brain weight of growing rabbits. Applied Animal Behaviour Science 182, 72-79.

The objective of the study was to investigate if environmental enrichment and the composition of the social group would affect the behavior and relative brain weight of growing rabbits. Rabbits (72 males and 72 females)...

Merrill, C., Ordile, J. 2016. Litter box training of rabbits housed in pens. Laboratory Animal Science Professional 4(1) (March), 44-46.

At Pfizer’s Pearl River site, rabbits are socially housed in pairs or triples in dog runs that have been converted into rabbit pens. The daily husbandry and maintenance of these pens, however, proved to be...

Baines, F. M., Chattell, J., Dale, J. et al. 2016. How much UVB does my reptile need? The UV-Tool, a guide to the selection of UV lighting for reptiles and amphibians in captivity. Journal of Zoo and Aquarium Research 4(1), 42-63.

Guidance is almost non-existent as to suitable levels of UV lighting for reptiles and amphibians, or how to achieve satisfactory UV gradients using artificial lighting. The UV-Tool is a working document that seeks to address...

Buijs, S., Maertens, L., Hermans, K. et al. 2015. Behaviour, wounds, weight loss and adrenal weight of rabbit does as affected by semi-group housing. Applied Animal Behaviour Science 172, 44-51.

Group housing is often assumed to improve the welfare of gregarious species. Whether this is actually the case depends on the advantages (e.g. more opportunity for social and locomotor behaviour) and disadvantages (e.g. increased fighting...

Pritchett-Corning, K. R., Gaskill, B. N. 2015. Lack of negative effects on Syrian hamsters and Mongolian gerbils housed in the same secondary enclosure. JAALAS 54(3), 261-266.

In cases where different species might be housed in the same room or secondary enclosure, the Guide for the Care and Use of Laboratory Animals recommends that the animals should be behaviorally compatible and have...

Buijs, S., Tuyttens, F. A. M. 2015. Evaluating the effect of semi-group housing of rabbit does on their offspring's fearfulness: Can we use the open-field test? Applied Animal Behaviour Science 162, 58-66.

Breeding does are usually housed one doe per cage, but there is an increased interest in (semi-)group housing systems designed to improve welfare. However, there is a lack of information on how such systems actually...

Prebble, J. L., Langford, F. M., Shaw, D. J. et al. 2015. The effect of four different feeding regimes on rabbit behaviour. Applied Animal Behaviour Science 169, 86-92.

Dietary composition and presentation impacts on the behaviour of animals, and failure to provide a suitable diet can lead to reduced welfare through the development of poor health, the inability to express normal behaviours and...

Bayne, K. A., Beaver, B. V., Mench, J. A. et al. 2015. Laboratory animal behavior. In: Laboratory Animal Medicine, 3rd edition. Fox, J. G., Anderson, L., Otto, G., et al. (eds). Elsevier, Inc., Amsterdam, NL. pp. 1617-1651.

The study of laboratory animal behavior has increased steadily over the last decade, with expanding emphasis on a variety of commonly used species. In the United States, this trend was initially focused on species for...

Buijs, S., Hermans, K., Maertens, L. et al. 2014. Effects of semi-group housing and floor type on pododermatitis, spinal deformation, and bone quality in rabbit does. Animal 8(10), 1728-1734.

The most common housing system for reproduction rabbits, individual cage housing on a wire floor, is increasingly scrutinized because of its potential detrimental impact on animal welfare. We compared three types of housing: (1) individual...

Monts de Oca, N., Diaz, L., McMahen, D. et al. 2014. The use of lean management principles to enhance a nonhuman primate environmental enrichment program. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 580-581. (Abstract #P122).

Sewage back-up and overflows in the rooms of our primate facility initiated an analysis of the factors contributing to the clogging of the drains. An investigation reviewing the materials responsible for the clogging of the...

Dorman, B., Weir, D. E. 2014. From swinging single to peacefully cohabitating: A DIY way to managing rabbit socialization without breaking your budget. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 563 (Abstract #P54).

The Guide for the Care and Use of Laboratory Animals requires that all animals, without veterinary or study exemptions, be socially housed. Our current caging only allows enough floor space to house one large rabbit...

Cikanek, S. J., Nockold, S., Brown, J. L. et al. 2014. Evaluating group housing strategies for the ex-situ conservation of harlequin frogs (Atelopus spp) using behavioral and physiological indicators. PLOS ONE 9(2), e90218.

We have established ex situ assurance colonies of two endangered Panamanian harlequin frogs, Atelopus certus and Atelopus glyphus, but observed that males fought with each other when housed as a group. Housing frogs individually eliminated...

Rommers, J. M., Reuvekamp, B. J. F., Gunnink, H. et al. 2014. Effect of hiding places, straw and territory on aggression in group-housed rabbit does. Applied Animal Behaviour Science 157, 117-126.

Group-housing of rabbit does may be preferred from welfare point of view. However, group-housing causes agonistic behaviour which may cause severe injuries. Severe injuries may be prevented by offering hiding places for attacked does. Providing...