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...

Copelin, C., Hayman, B., Bergeron, R. et al. 2024. Compliance or confusion? The usefulness of blindfolding horses as a handling technique. Applied Animal Behaviour Science 271, 106180.

Blindfolds have commonly been suggested to make horses more tractable in emergency or high-stress situations such as barn fire evacuations or trailer loading. However, little research has been done on the veracity of this claim...

Baumgartner, M., Erhard, M. H., Zeitler-Feicht, M. H. 2023. Which animal-to-feeding-place ratio at time-controlled hay racks is animal appropriate? Preliminary analysis of stress responses of horses. Frontiers in Veterinary Science 9, 1005102

Automated feeding systems offer numerous advantages for animals and humans, but the associated benefits and risks can often only be seen under practical conditions. The space allowance (~80 cm per horse) at time-controlled hay racks...

Bradshaw-Wiley, E., Randle, H. 2023. The effect of stabling routines on potential behaviour indicators of affective state in horses and their use in assessing quality of life. Animals 13(6), 1065.

Increasing interest in equine welfare has emphasised the need for objective and reliable behavioural indicators of horses’ affective state. However, research has yielded mixed results regarding behaviours suited for industry use largely because they are...

Clegg, I. L. K., Domingues, M., Ström, E. et al. 2023. Cognitive foraging enrichment (but not non-cognitive enrichment) improved several longer-term welfare indicators in bottlenose dolphins. Animals 13(2), 238.

Bottlenose dolphins are the most common cetacean kept globally in zoos and aquaria (hereafter zoos), and are gregarious animals with a mostly opportunistic, generalist feeding strategy in the wild. In zoos, they have limited to...

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...

Łapiński, S., Niedbała, P., Markowska, K. et al. 2023. The effects of age, size, and cage complexity on the behaviour of farmed female chinchillas (Chinchilla lanigera). Scientific Reports 13(1), 6108.

Even though chinchillas have been farmed for a century, there are not many studies concerning their behaviour in captivity or their optimal housing conditions, both of which are important factors in the assessment of their...

Morgado, J. N., Lamonaca, E., Santeramo, F. G. et al. 2023. Effects of management strategies on animal welfare and productivity under heat stress: A synthesis. Frontiers in Veterinary Science 10, 1145610.

Climate change includes different dramatic events, and among them, heat stress exposition is the strongest phenomenon affecting the livestock sector. The effects of heat stress events on animal welfare are complex and the economic impacts...

Padalino, B., Benedetti, B., Felici, M. et al. 2023. GLAD scale for ranking welfare of horses on arrival after transport to slaughterhouses. Animals 13(9), 1465.

To date, there is no official method for measuring horse welfare after transport. This study aimed to develop a scale to classify horses into four categories: good shape; light affected; affected; down (GLAD) based on...

Platto, S., Serres, A. 2023. A quantitative assessment of trainers-dolphins’ interactions in the absence of food reward. Animals 13(10), 1651.

All the studies that have considered the motivation of the dolphins to interact with their trainers as a possible welfare indicator have been carried out in facilities where the trainer-dolphin interactions (TDIs) sessions were reinforced...

Warwick, C., Pilny, A., Steedman, C. et al. 2023. Mobile zoos and other itinerant animal handling events: Current status and recommendations for future policies. Animals 13(2), 214.

Mobile zoos are events in which non-domesticated (exotic) and domesticated species are transported to venues such as schools, hospitals, parties, and community centres, for the purposes of education, entertainment, or social and therapeutic assistance. We...

Williams, E., Hunton, V., Hosey, G. et al. 2023. The impact of visitors on non-primate species in zoos: A quantitative review. Animals 13(7), 1178.

Visitors are a prominent feature in the lives of zoo animals, and their presence can cause a range of impacts on zoo animals (typically classed as positive, negative or neutral impacts), commonly referred to as...

Beekmans, M. H. C., Vinke, C. M., Maijer, A. et al. 2023. Increasing foraging times with appetitive and consummatory foraging enrichment in grey parrots (Psittacus erithacus). Applied Animal Behaviour Science 265, 105986.

Foraging enrichment is considered one of the most effective ways to enhance expression of species-typical behaviours and prevent the development of abnormal (repetitive) behaviours in captive animals. However, foraging enrichments for parrots have thus far...

Bini de Lima, A. C., Sebastião da Fé, V. C., Palermo Hernandes, M. S. et al. 2023. Olfactory stimulation as environmental enrichment for domestic horses—A review. Animals 13(20), 3180

Horses constantly face several challenges inherent to the domestic environment, and it is common for the expression of their natural behavior to be drastically limited. Environmental enrichment has been suggested as an alternative to improve...

Brando, S., Norman, M. 2023. Handling and training of wild animals: Evidence and ethics-based approaches and best practices in the modern zoo. Animals 13(14), 2247.

There is an ethical responsibility to provide all animals living in human care with optimal and positive well-being. As animals living in zoos and aquariums frequently interact with their human caregivers as part of their...

Gueguen, L., Henry, S., Delbos, M. et al. 2023. Selected acoustic frequencies have a positive impact on behavioural and physiological welfare indicators in thoroughbred racehorses. Animals 13(18), 2970.

(1) Background: Since antiquity, it is considered that sounds influence human emotional states and health. Acoustic enrichment has also been proposed for domestic animals. However, in both humans and animals, effects vary according to the...

Olczak, K., Penar, W., Nowicki, J. et al. 2023. The role of sound in livestock farming—Selected aspects. Animals 13(14), 2307.

To ensure the optimal living conditions of farm animals, it is essential to understand how their senses work and the way in which they perceive their environment. Most animals have a different hearing range compared...

Pretorius, Y., Eggeling, T., Ganswindt, A. 2023. Identifying potential measures of stress and disturbance during a captive to wild African elephant reintegration. PLOS ONE 18(10), e0291293.

There is increasing evidence of compromised welfare for elephants managed in captivity. Should such facilities eventually close, more elephants will need to be rehabilitated and reintegrated into the wild. The goal of such reintegration would...

Štrbenc, M., Kuhar, U., Lainšček, D. et al. 2023. Rehoming and other refinements and replacement in procedures using golden hamsters in SARS-CoV-2 vaccine research. Animals 13(16), 2616.

Effective vaccines are needed to fight the COVID-19 pandemic. Forty golden hamsters were inoculated with two promising vaccine candidates and eighteen animals were used in pilot trials with viral challenge. ELISA assays were performed to...

van Zeeland, Y. R. A., Schoemaker, N. J., Lumeij, J. T. 2023. Contrafreeloading indicating the behavioural need to forage in healthy and feather damaging Grey parrots. Animals 13(16), 2635.

Contrafreeloading (CFL) is a concept that describes the preference of an animal to work for food even when identical food is freely available, and reflects an intrinsic motivation to engage in foraging-related activities. However, altered...

Darbyshire, A., Osborne, A., Jackson, G. et al. 2023. The Chinchilla Consortium: Standardizing health and husbandry. Laboratory Animal Science Professional 11(2) (March/April), 22-27.

Although chinchillas (Chinchilla lanigera, C. chinchilla) are categorized as a USDA-covered species, little information and guidance is available with regard to appropriate husbandry in a research setting. Here, the Consortium offers advice on standardized care...

Molnar, D. L., Vernasco Price, E. J. 2023. Use of a toy soak to maximize staff efficiency in cage wash operations. Laboratory Animal Science Professional 11(2) (March/April), 40-41.

The Guide for the Care and Use of Laboratory Animals emphasizes that the primary aim of environmental enrichment is to enhance animal well-being. At our facility, at the end of a two-week cycle in a...

Quintanilla, B., Diana, A., Salas, M. 2023. Enhancing welfare in a mixed exhibit: The impact of dispersed whole food on activity levels and feeding behaviours of Mexican military macaws and red-billed curassows. Journal of Zoo and Aquarium Research 11(4), 366–375.

Presenting chopped food in a bowl is a traditional feeding technique in zoos worldwide. However, it may not provide sufficient stimulation for many species to satisfy their behavioural needs. Recent studies suggest that dispersing food...

Tsuchiya, Y., Yayota, M., Kashima, Y. et al. 2023. Nutritional effect of feeding enrichment using bamboo Pleioblastus spp. in zoo-kept Asian elephants Elephas maximus. Journal of Zoo and Aquarium Research 11(2), 267–273.

Many zoos use browse and other roughage as feed ingredients and enrichment tools for elephants. Amongst these are bamboo species (e.g. Pleioblastus spp.), which belong to the family of grasses. Bamboo is used in zoos...