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...

Mantz, M., Pugerud, A. 2024. Overcoming the hurdles of lab animal enrichment: Natural behaviors vs. scientific need. Laboratory Animal Science Professional 12(1) (January/February), 32-34.

The Animal Resources Core (ARC) at the Abigail Wexner Research Institute (AWRI) at Nationwide Children’s Hospital (NCH) faces many of the same challenges other institutions manage in terms of enrichment for laboratory animals. A Behavior...

Brennan, J. 2024. How much wood could a woodchuck chuck if a woodchuck could chuck wood? Not much if they’re provided with the right enrichment! Laboratory Animal Science Professional 12(1) (January/February), 46-48.

Husbandry & Management,Environmental Enrichment

Claydon, M., Brereton, J., Rose, P. 2024. Never be mute about bird welfare: Swanning around with environmental enrichment. Zoo Biology 43(1), 83–91.

Environmental enrichment (EE) is commonly provided to animals managed under human care, being beneficial to behavioral diversity and improving animal welfare. Use of EE appears to be particularly beneficial to individual wild animals spending a...

Kelly, R., Rose, P. E. 2024. Assessing the impact of environmental enrichment on behavior in understudied armadillo species: A case study. Zoo Biology 43(1), 100–109.

The implementation of environmental enrichment (EE) can be effective in promoting zoo animal welfare by enhancing the performance of natural or species-typical behaviors. Research on the effects of EE is biased towards larger mammalian species...

Urrego, A. C. B., Aguilar, D. A. B. 2024. Impact of diet and environmental enrichment management in stereotyped behaviours: A case study in tayra Eira barbara. Journal of Zoo and Aquarium Research 12(1), 49–55.

Holistic approaches have been implemented to minimise stress expressed as stereotypies associated with low welfare conditions, which can arise from a range of factors such as frustration, adaptation attempts and neurological problems. Such behaviour was...

Cohen, S., Ho, C. 2023. Review of rat (Rattus norvegicus), Mouse (mus musculus), Guinea pig (Cavia procellus), and rabbit (Oryctolagus cuniculus) indicators for welfare assessment. Animals 13(13), 2167.

The monitoring and assessment of animals is important for their health and welfare. The appropriate selection of multiple, validated, and feasible welfare assessment indicators is required to effectively identify compromises or improvements to animal welfare...

Howell-Stephens, J., Potratz, E. J., Brown, J. S. et al. 2023. Integrating measures of fecal glucocorticoid metabolites and giving-up densitites to assess adrenocortical activity and well-being in zoo-housed three-banded armadillos. Animals 13(12), 1975.

To monitor adrenocortical activity in zoo-housed species, we propose using physiological and behavioral indicators that are non-invasive and practical to implement. We explore this model in the southern three-banded armadillo (Tolypeutes matacus; armadillo), which is...

Hube, D., Bill, J., Knop, E. S. et al. 2023. Physical injuries and hair corticosterone concentration in rabbit kits from single- and group-housed does kept on a commercial farm. Animals 13(2), 196.

In intense breeding programs, rabbits are exposed to numerous stress factors which could affect their welfare and health. It has been suggested that group housing is more comfortable for does and similar to the living...

Krunt, O., Zita, L., Kraus, A. et al. 2023. Effects of genotype and housing system on rabbit does’ aggressive behaviors and injuries in smallholding conditions. Animals 13(8), 1357.

The objective of the study was to investigate the effects of housing (deep litter + concrete floor vs. deep litter + ground soil with the possibility to dig burrows), and genotype (Mecklenburg or Hyplus) on...

Pallieres, C. G. D., Rose, P. E. 2023. Two’s company, three species is a crowd? A webcam-based study of the behavioural effects of mixed-species groupings in the wild and in the zoo. PLOS ONE 18(4), e0284221.

Mixed species exhibits in zoos are used to create larger, more stimulating environments to support naturalistic interactions between species. In the wild, mixed species groups are observed as having lower rates of vigilance, presumably due...

Lucchini, K., Umeed, R., Parreira dos Santos, P. J. et al. 2023. Tactile responses to environmental enrichment in captive Antillean manatees (Trichechus manatus manatus). Applied Animal Behaviour Science 261, 105879.

Tactile signals are essential for Antillean manatee communication and survival because they facilitate interactions with conspecifics and the environment. Nevertheless, relatively little is known about tactile signal usage. This study aimed to assess captive Antillean...

Baskir, E., Parsons, A., Elden, M. et al. 2023. Quantifying acute behavioral reactions of Bali mynas (Leucopsar rothschildi) to environmental and progressively challenging enrichment. Journal of Zoological and Botanical Gardens 4(1), 176–190.

Animals use specific behaviors and skills to overcome challenges and access resources. Environmental enrichment is provided to animals in human care to both promote species-appropriate behaviors and reduce undesired behaviors. Feather pecking in birds is...

Beer, H. N., Karr, L. K., Shrader, T. C. et al. 2023. Allostatic load index effectively measures chronic stress status in zoo-housed giraffes. Journal of Zoological and Botanical Gardens 4(3), 623–636.

For giraffes, few standardized methods exist for quantifying chronic stress. Allostatic load index is quantified from a panel of multi-system stress biomarkers to estimate cumulative stress. Our objective was to determine whether a panel of...

Campbell-Ward, M. 2023. Quality-of-life assessments in zoo animals: Not just for the aged and charismatic. Animals 13(21), 3394

Zoos should aim to provide all of their animals with a good quality of life (QoL) throughout all life stages. In parallel with the evolution of QoL assessment questionnaires and tools in human and domestic...

Deininger, M. M., Benner, C.-F., Strudthoff, L. J. et al. 2023. Post-mortem extracorporeal membrane oxygenation perfusion rat model: A feasibility study. Animals 13(22), 3532.

The development of biomedical soft- or hardware frequently includes testing in animals. However, large efforts have been made to reduce the number of animal experiments, according to the 3Rs principle. Simultaneously, a significant number of...

Henaut, Y., Delfour, F. 2023. Manatees in zoological parks throughout the world: History, state, and welfare. Animals 13(20), 3228.

The order Sirenia comprises several species of manatees and one species of dugong. These popular marine mammals are relatively recent acquisitions to zoological parks throughout the world. As far as we know, there are less...

Littlewood, K. E., Heslop, M. V., Cobb, M. L. 2023. The agency domain and behavioral interactions: Assessing positive animal welfare using the Five Domains Model. Frontiers in Veterinary Science 10.
Rose, P. 2023. Identifying essential elements of good giraffe welfare—Can we use knowledge of a species’ fundamental needs to develop welfare-focussed husbandry? Journal of Zoological and Botanical Gardens 4(3), 549–566.

Measurement of zoo animal welfare states enables improvement to husbandry and management to be evidence-based and implemented according to species’ needs. Theoretical welfare concepts are often discussed, and whilst it is helpful to ensure wide...

Trujanovic, R., Rohrbach, H. 2023. Ultrasound-guided block of the sciatic and the femoral nerves in rabbits—A descriptive anatomical study. Animals 13(14), 2393.

The rabbit is a popular animal model for human biomechanical research involving surgery on the hind limb. Mortality is higher in rabbits when undergoing general anesthesia compared to dogs and cats. Moreover, due to their...

Powell, J., Collins, T., Beaty, T. et al. 2023. A fat tailed what?!: Navigating husbandry for the fat tailed dunnart (Sminthopsis crassicaudata). Laboratory Animal Science Professional 11(4) (July/August), 46-48.

FTDs are Australian carnivorous nocturnal marsupials, whose diet, environmental needs, and enrichment vary from typical research species. Due to the limited working knowledge on the husbandry and care of this species in a biomedical setting...

Benato, L., Murrell, J., Rooney, N. 2023. Determining a cut-off point for intervention analgesia in rabbits using the Bristol Rabbit Pain Scale. Veterinary Record 193(5), e2995.

Background: The objective of this study was to determine the threshold of the Bristol Rabbit Pain Scale (BRPS) indicating the need for intervention analgesia. Methods: Fourteen members of veterinary staff were recruited to rate rabbits...

Okabe, K., Fukuizumi, H., Kawamura, A. et al. 2023. An investigation of browsing enrichment, especially non-leaf foraging, on giraffes (Giraffa camelopardalis reticulata) at Kyoto City Zoo in Japan. Zoo Biology 42(1), 157–161.

Browsing enrichment may aid in developing species-specific behaviors for giraffes managed in zoos as a means of improving animal welfare. By nature, giraffes are tree-feeding animals, including tree bark, but the extent of food other...

Santos, R. V., Bhatt, S., Foote, S. et al. 2023. Method of measuring effects of study procedures in single and pair housed New Zealand White rabbits (Oryctolagus cuniculus). Journal of Pharmacological and Toxicological Methods 119, 107204.

Social housing of laboratory rabbits is encouraged and thought to improve animal welfare due to the social nature of this species. However, there is limited published information comparing the physiologic and cardiovascular (CV) effects of...

Trelfa-Stewart, E., Cox, L. 2023. Battle of the enrichments: Comparing the impact of nutritional and sensory enrichment on the behaviour of captive lowland tapirs Tapirus terrestris. Journal of Zoo and Aquarium Research 11(3), 336–344.

Environmental enrichment is used to improve the welfare of captive animals by providing increased environmental variety, the provision of choice, and the opportunity to develop competency. The efficacy of a range of environmental enrichment should...